CONSTRUCTION SPECIFICATION 15270 · Web viewNormal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity K factor @ 75º F = .26 Flame spread 10, smoke density 50. Jacket Vapor

PROCESS AND UTILITY INSULATION SPECIFICATION 15270

Table Of Contents

1. GENERAL..................................................................21.1. WORK INCLUDED.....................................................................................21.2. RELATED WORK.......................................................................................21.3. SYSTEM DESCRIPTION AND NOMENCLATURE...................................................31.4. REFERENCES...........................................................................................31.5. QUALITY ASSURANCE................................................................................51.6. SUBMITTALS............................................................................................51.7. DELIVERY, STORAGE AND HANDLING............................................................51.8. PROJECT/SITE CONDITIONS.........................................................................61.9. SEQUENCING/SCHEDULING.........................................................................61.10. ALTERNATES...........................................................................................61.11. WARRANTY.............................................................................................6

2. PRODUCTS................................................................72.1. MATERIALS.............................................................................................7

3. EXECUTION...............................................................83.1. GENERAL................................................................................................83.2. PIPING INSULATION...................................................................................93.3. PIPE JACKETING......................................................................................133.4. EQUIPMENT INSULATION...........................................................................153.5. EQUIPMENT JACKETING.............................................................................173.6. DUCT INSULATION..................................................................................18

4. INSULATION SPECIFICATIONS AND TABLES...............204.1. INSULATION SPECIFICATION CLASS D3.......................................................204.2. INSULATION SPECIFICATION CLASS D4.......................................................214.3. INSULATION SPECIFICATION CLASS D5.......................................................224.4. INSULATION SPECIFICATION CLASS D6.......................................................234.5. INSULATION SPECIFICATION CLASS P1........................................................244.6. INSULATION SPECIFICATION CLASS P3........................................................254.7. INSULATION SPECIFICATION CLASS P4........................................................264.8. INSULATION SPECIFICATION CLASS P5........................................................274.9. INSULATION SPECIFICATION CLASS P6........................................................284.10. INSULATION SPECIFICATION CLASS P7........................................................294.11. INSULATION SPECIFICATION CLASS P8........................................................304.12. TABLE 15270-1 PIPE INSULATION BY SERVICE............................................314.13. INSULATION SPECIFICATION CLASS E1........................................................384.14. INSULATION SPECIFICATION CLASS E3........................................................394.15. INSULATION SPECIFICATION CLASS E4........................................................404.16. INSULATION SPECIFICATION CLASS E5........................................................414.17. TABLE 15270-2 EQUIPMENT TO BE INSULATED...........................................42

Latest Revision 04/13/10 - 1 - Process and Utility InsulationThe Hershey Company Specification 15270

General

1. GENERAL1.1. Work Included

A. All work under this Specification shall be in accordance with the Contract documents.

B. This Specification governs the minimum requirements for the procurement, fabrication and installation of all insulation. This includes all labor, supervision, tools, equipment and materials necessary for a complete and permanent installation. Work to be performed by the Contractor shall include but not necessarily be limited to the following:

1. Insulation of pipe for process and utility services.

2. Insulation of equipment for process and utility services.

3. Insulation of ductwork for process and utility services.

C. The intent of this Specification is to provide a continuous unbroken insulation system wherever possible. The Contractor shall insulate piping furnished with the equipment with the same insulation and finish as specified for the connecting piping.

D. The insulation Contractor shall be responsible for the proper joining of the insulation to the pre-insulated pipe hangers and supports as installed by Specification 15145 (Hangers and Supports) Contractor.

1.2. Related Work A. This Specification describes in detail work which is referenced in the following primary

specifications:Spec. No. TitleSpecification 15070 Process and Utility PipingSpecification 15090 Process and Utility Sheet MetalSpecification 15130 Process and Utility InstrumentationSpecification 15301 Fire Protection SystemsSpecification 15940 Process and Utility EquipmentSpecification 16010 Electrical Work General

B. Referenced within this Specification is related work which shall be performed by this Contractor and is described in detail in the following specifications:

Spec. No. TitleSpecification 07900 Joint SealantsSpecification 15145 Hangers & Supports Specification 15200 Penetration of Building Elements


General

1.3. System Description and NomenclatureA. This Specification along with the Contract Drawings defines the design criteria, minimum quality,

labor and supervision, tools and equipment, methods and procedures, materials and assemblies for furnishing, fabricating, assembling and installing complete, permanent, industrial insulation systems.

B. Only a signed change order or addendum shall authorize modifications, alterations, exceptions or additions to this Specification.

C. This Specification and the contract drawings are complementary in that any requirement defined by one shall be the same as if explicitly defined by all. If system requirements defined by this Specification and the contract drawings are in conflict, the Contractor shall immediately notify Hershey for written clarification prior to proceeding with any related work.

D. If the Contractor has any questions regarding the system requirements after reviewing these specifications and the contract drawings, the Contractor shall immediately contact Hershey and request clarification before proceeding with any related work.

E. Insulation terms used within this Specification shall be as defined by ASTM C168. The use of the word "pipe" shall be understood to include both pipe and tubing. The use of the word "fitting" shall be understood to include all fittings (elbows, tees, crosses, unions, flanges, caps, reducers, special fittings, etc.); valves (hand valves, check valves, control valves, and special purpose valves); and specialties (strainers, pipeline filters, etc.).

F. Installation shall be interpreted to mean purchasing, receiving, transporting, unloading, storing, fabricating, applying, inspecting, and proving complete insulation systems in accordance with these technical specifications.

G. Insulation specifications are divided into three main classifications: Class P (Piping Insulation), Class E (Equipment Insulation), and Class D (Ducting Insulation). Individual material specifications for each class are located at the end of this Specification.

H. Table 15270-1 (page 31) lists the piping and ducting to be insulated and gives the individual piping or ducting designation, followed by the description, the insulation class, and the insulation thickness.

I. Table 15270-2 (page 42) lists the equipment to be insulated and gives the individual equipment numbers followed by the description, the insulation class, and the insulation thickness.

1.4. ReferencesA. Specific editions of standards incorporated in this Specification by reference are shown in the

following lists. Any materials furnished by or work performed by the Contractor shall meet these standards. It is the Contractor’s responsibility to make sure the latest version of the particular spec is being used.

B. The following is a list of American Society for Testing and Materials (ASTM) standards referenced within this Specification:

ASTM Std. No. Title

C168 Standard Terminology Relating to Thermal Insulation


General

ASTM Std. No. Title

C449 Standard Specification for Mineral Fiber Hydraulic-Setting Thermal Insulating and Finishing Cement

C450 Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping and Vessel Lagging

C461 Standard Test Methods for Mastics and Coatings Used with Thermal Insulation

C533 Standard Specification for Calcium Silicate Block and Pipe Thermal Insulation

C534/534M Standard Specification for Preformed Flexible Elastomeric Cellular Thermal Insulation in Sheet and Tubular Form

C547 Standard Specification for Mineral Fiber Pipe Insulation

C585 Standard Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing

C591 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation

C692 Standard Test Method for Evaluating the Influence of Thermal Insulations on External Stress Corrosion Cracking Tendency of Austenitic Stainless Steel

C755 Standard Practice for Selection of Vapor Retarders for Thermal Insulation

C795 Standard Specification for Thermal Insulation for Use In Contact with Austenitic Stainless Steel

D579 Standard Specification for Greige Woven Glass Fabrics

E84 Standard Test Method for Surface Burning Characteristics of Building Materials

C. The following is a list of Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) standards referenced within this Specification:

MSS Std. No. Title

SP-58 Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation

SP-69 Pipe Hangers and Supports - Selection and Application (ANSI-approved American National Standard)

SP-89 Pipe Hangers and Supports -Fabrication and Installation Practices

D. American Society for Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE)

E. National Fire Protection Association (NFPA)

F. Occupational Safety and Health Administration (OSHA)


General

G. Underwriters' Laboratories Inc. (UL)

H. American National Standards Institute (ANSI)

ANSI Std. No. Title

A13.1 Scheme for the Identification of Piping System

1.5. Quality AssuranceA. Skilled craftsmen regularly engaged in the appropriate trade shall do all work.

B. All materials furnished by the Contractor shall be new and free from defects. No materials, whether furnished by the Contractor or others, shall be installed or used in a fabrication assembly if the materials are physically damaged or functionally defective.

C. All work performed by the Contractor shall be of good quality and done in a safe manner. The Contractor shall not perform any work during periods in which environmental or site conditions may adversely affect the serviceability of the installation. The Contractor shall not damage an existing installation or work being performed by others. The Contractor shall repair any damage at his own expense and at the direction and approval of Hershey. If conflicts arise, the Contractor shall immediately report them to Hershey for resolution. Any work performed by or materials installed by the Contractor which are found to be unsatisfactory shall be corrected by the Contractor at his expense.

1.6. Submittals A. All submittals shall be in accordance with the requirements outlined by Hershey.

B. If the materials and methods of installation to be used are in compliance with the Specification, submission of samples or data to confirm compliance is not required. If the Contractor proposes materials or methods not exactly as specified, but intended to be of equal or better quality and performance, then catalog data sheets, samples and other supporting information shall be submitted for Hershey's review in accordance with the Data Submittal Requirements.

1.7. Delivery, Storage and Handling A. Deliver insulation material to project site in original unbroken factory packaging labeled with

manufacturer's product designation and thickness. Shipment of materials from the manufacturer to the installation location shall be in weather-tight packaging.

B. All accessories and materials (i.e. coatings, adhesives, sealers, etc.) are to be shipped to the job site in marked, unopened containers as received from the manufacturer.

C. Before accepting any materials onto the job site, the Contractor and Hershey shall inspect the materials. Any materials found to be damaged, defective or unsuitable for the intended service shall not be accepted.

D. The Contractor is responsible for proper material storage at the work site. Insulation shall be protected from moisture and weather during storage and installation. All insulation shall be stored indoors protected from rain, wind and excessive heat or cold. Insulation that has become wet shall not be used unless thoroughly dried. It shall not be used at all if dirt has entered the insulation.


General

E. All handling of materials shall be done in accordance with the manufacturer's recommendation and in a manner that will not damage or reduce the serviceability of the material. All materials shall be stored with the manufacturer's identification attached.

1.8. Project/Site ConditionsA. The Contractor shall ensure that temperature and other environmental conditions are favorable for

insulation installation.

1.9. Sequencing/Scheduling A. All sequencing and scheduling of work to be performed under this Specification shall be in

accordance with the Agreement for Contractor Services, including all exhibits and attachments to the agreement.

1.10. AlternatesA. The Contractor may suggest alternates covering each of the following subjects:

1. Alternative materials to improve quality, schedule or pricing.

2. Exceptions to the specifications covering materials, manner of application, or other details.

B. If the Contractor has suggested changes or modifications to the system requirements, the Contractor shall submit, in writing, a description of the proposed changes or modifications for review by Hershey in accordance with Hershey submittal requirements.

C. The information shall include catalog data sheets as a minimum, and shop drawings, samples and other supportive information as necessary for Hershey to evaluate the proposed materials.

D. Hershey shall review alternative material recommendations and shall be the sole judge in determining whether the proposed material, accessory, or item meets the stated criteria for service and conditions imposed.

E. The Contractor shall not proceed with any proposed changes or modifications until authorized to do so by Hershey in writing in accordance with the contract documents. The cost of any work performed on proposed changes or modifications without Hershey's written approval will be at the Contractor's expense, as well as any cost for correcting such unauthorized work.

1.11. Warranty A. Warranty of work to be performed under this Specification shall be in accordance with the

agreement negotiated by Hershey for Contractor Services, including all exhibits and attachments to the agreement.


Products

2. PRODUCTS2.1. Materials

A. Materials shall conform to the standards specified, shall be new, free from defects and imperfections, and shall be of recent manufacture. Materials not covered by detailed specifications shall be standard products of reputable manufacturers and suitable for intended use. Materials shall be standard catalogued products, commercially available.

B. Hershey reserves the right to reject any material if it has not been demonstrated to its satisfaction that the requirements of this Specification have been met.

C. No asbestos is permitted in any material.

D. Materials include insulation materials, accessories (bands, mesh, wire, clips, pins, tape, anchors, corner angles and similar recommended accessories) and compounds (cements, adhesives, coatings, sealers, protective finishes and similar items recommended for the applications indicated).

E. Any insulation in contact with stainless steel shall be chloride-free or have adequate inhibitors so it will not cause stress-corrosion cracking of stainless steel. All materials that will be used on stainless steel shall be certified to conform to the requirements of ASTM Specifications C692 and C795.

F. Table 15270-1 (page 31) lists in alphabetical order each piping and ducting service symbol, service description, line size, insulation class and thickness. Individual insulation specifications follow the tables. These specifications provide detailed information on each type of insulation. The table lists insulation for "Interior" and "Exterior;" "Exterior" shall include unheated enclosed areas, such as enclosed catwalks, covered pipe bridges, etc.

G. Table 15270-2 (page 42) lists in numerical order each item of insulated equipment, the insulation class, and the insulation thickness. Individual equipment insulation specifications follow Table 15270-2. The specifications provide detailed information on each type of insulation.


Execution

3. EXECUTION 3.1. General

A. It is the Contractor's responsibility to inspect the work site prior to execution to verify that surfaces to receive insulation have no defects or errors that would result in poor or potentially defective application or cause latent defects in workmanship.

B. The Contractor shall not apply insulation until Hershey has approved the required hydrostatic or pneumatic testing of the piping system or individual piece of equipment. Where approved by Hershey, the installation of insulation may be applied before pressure testing provided joints are not covered until inspected under pressure tests. The Contractor shall coordinate his work with Specification 15070, Process and Utility Piping.

C. Heat traced piping shall not be insulated until after the heat tracing has been installed. The Contractor shall coordinate his work with Specification 15070, Process and Utility Piping, for steam/fluid tracing and Specification 16010, Electrical Work General for electrical tracing. Tracer expansion loops, jumpers, etc., that protrude beyond the pipe insulation shall be insulated the same as on piping.

D. Skilled craftsmen regularly engaged in the appropriate trade shall perform all work. Application method and recommended coverage of all materials shall be in strict accordance with the manufacturer's written recommendations.

E. Insulation shall not be applied until all surfaces are clean, dry, and free of dirt, dust, grease, frost, moisture and other imperfections. The cleaning of these surfaces prior to insulating is the Contractor's responsibility.

F. The Contractor shall be responsible for the protection of "in-work" insulation from the weather, and shall replace any weather-damaged insulation at no additional cost to Hershey.

G. The Contractor shall provide insulation of the specified thickness. Where there is insufficient clearance to install the specified thickness of insulation, the Contractor shall notify Hershey in writing. Hershey will advise in writing if a non-specified insulation thickness is acceptable, or if pipe is to be modified to allow specified insulation thickness.

H. All hot work, i.e., welding, torches, and open flame work, must have been completed prior to commencing the installation of foam insulation. Smoking in the area while foam insulation is being applied shall be strictly prohibited. Smoking is prohibited in the plant except as designated.

I. All pipe and duct insulation shall be continuous through all sleeves. Insulation shall be jacketed where subject to mechanical damage.

J. Insulation adjacent to pipe flanges shall be cut and tapered in such a manner as to allow bolt removal without damaging insulation.

K. Any location where water may pocket or puddle on the insulation shall be built-up and beveled with a sufficient taper to eliminate any pocketing or puddling of water.

L. On insulated, heat-traced lines, all in-line instruments, vents, drains, control valves, block valves, and flexible hoses shall be insulated the same as the pipe.


Execution

M. Nameplates, insurance company's inspection stamps, or identification tags shall not be covered with insulation except where accumulation of water might get beneath insulation. Locations of nameplates, stamps, or tags covered by insulation shall be recorded on dimensioned drawings and a location list, both to be turned over to Hershey at the completion of the insulation work.

N. The Contractor shall be responsible for cleaning the job-site during the job and at the completion of the job. Insulation work that is being done while plant is operating shall be cleaned at a minimum of once a Contractor shift. The Contractor shall be responsible for cleaning of equipment, steel, and any other surfaces that are soiled due to spattering, dripping, or dusting of insulation or coating.

3.2. Piping Insulation A. Installation Details - Class P1

1. Pipe - Pipe shall be insulated with pre-molded sections of calcium silicate. For insulation thickness 3 inch and greater, the insulation shall be applied in double-layer construction with staggered and broken joints. Where necessary, the Contractor shall furnish suitable expansion joints in the insulation to prevent cracking or wrinkling due to expansion and contraction of the surface being insulated. Expansion joint details shall be per insulation manufacturer's recommendations.

2. Materials:

a. Insulating tape shall be 1/8 inch thick, woven glass tape.

b. Weatherproofing mastic shall be a breathing type.

c. Insulation straps shall be 1/2 inch wide by 0.015 inch thick galvanized steel straps and seals.

d. Insulation wire shall be 16 gauge carbon steel wire.

3. Fittings 2 inches and Smaller - Screwed, welded, and soldered joint fittings shall be insulated to the same thickness as the adjoining pipe insulation with insulating cement applied in 1/2 inch to 3/4 inch thick layers. Each layer shall be dry prior to applying the next layer. If the thickness exceeds 1-1/2 inches, the outer layer shall be reinforced with wire mesh such that the mesh shall be completely embedded into the final coat and shall not be visible.

4. Fittings 2-1/2 inches and Larger - Pipe fittings 2-1/2 inches and larger, and flanged fittings of all sizes shall be insulated with either pre-molded sections or shop-fabricated sections of calcium silicate contoured to fit the fittings to be insulated and secured by galvanized strap or stainless steel wire ties. All joints and other irregularities shall be filled and smoothed over with insulating cement.

5. Flanges - Insulate flanges with oversize pre-molded sections of pipe insulation large enough to fit over the OD of the flange. Cut and bevel the pipe insulation short of the flange to allow removal of the flange bolts without disturbing the insulation. Oversize insulation shall lap the pipe insulation by 1-1/2 times the insulation thickness. Fill space between pipe insulation and oversize insulation with pre-molded pipe insulation or block insulation of the same material.


Execution

6. Hangers - Horizontal pipe shall be protected at the point of support by a high-density calcium silicate insert encased in a sheet metal shield. Inserts shall be the same thickness as the pipe insulation. Inserts shall be Pipe Shields, Inc., or Hershey-approved equivalent. Hangers shall be installed by Specification 15145 (Hangers and Supports) Contractor. The insulation Contractor shall be responsible for the joining of the insulation to the pre-insulated pipe hanger or support per the manufacturer's written instructions. For calcium silicate inserts, apply three-inch wide vapor barrier tape or galvanized strap over the butt joint.

7. Valves - Insulation shall be the same as the fitting insulation. Valve bodies shall be insulated up to the packing gland. Insulation shall be cut and beveled so as not to interfere with adjustment or removal of the packing gland. Insulation shall be sealed to the valve body with heat resistant sealer.

8. Jacketing - Install jacketing material over pipe and fittings after all insulation has been applied in strict accordance with the jacketing manufacturer's written instructions.

9. All stainless steel piping systems with P1 insulation shall receive "Thurmalox 70" coating, or Hershey approval equal, prior to insulating. Prepare the surfaces and apply coating in strict accordance with the manufacturer's written instructions. The coating shall be applied to all exterior surfaces of the piping system. The metal surfaces shall be clean and dry and shall be cleaned with a non-chlorinated, non-aliphatic solvent. Apply two coats of "Thurmalox 70", or Hershey-approved equal, to give a total dry film thickness of 2.0 to 2.5 mils. Both coats shall be applied to the pipe. All openings in pipe shall be covered and proper precautions shall be taken to prevent overspray or spillage from contaminating the interior of the pipe.

B. Installation Details - Class P3

1. Pipe - Insulate piping with pre-molded sections of flexible elastomeric cellular insulation. Use application techniques described in manufacturers’ written instructions for cutting, mitering, fitting, and joining insulation to piping and fittings. Where practicable, install pre-molded sections of insulation on new piping by slipping over ends of pipe as work progresses. Where necessary, install pre-molded sections by slitting the pre-molded sections of insulation lengthwise along the trademark line and fold over the piping. Seal all lengthwise seams and butt joints with adhesive. In wet areas, seal all pipe penetrations, pipe ends and branches.

2. Insulate large pipes, fittings, and irregular shapes with sheet and roll insulation. Sheet and roll insulation is supplied with skin on one side and should always be applied with the skin side out. Cuts must be accurate to assure full contact with mating sheets when bonded together. Primed and painted surfaces should be adhesive tested beforehand to be sure that insulation will not lift off after application. Brush or roll a thin, even coat of adhesive on the cellular surface and on the surface to be insulated. Allow the adhesive film to become dry to the touch, but tacky, before joining surfaces. Place the sheet tightly against the mating sheet or sheets. Be sure it is in the desired position before the adhesive surfaces make initial contact since the adhesive forms an instant bond and repositioning is difficult after contact. Allow the material to remain in a relaxed state and apply pressure inward to the surface until the entire adhesive area is contacted. Seal longitudinal and butt joints as described for piping.


Execution

3. Hangers - Horizontal pipe shall be protected at the point of support by a high-density urethane insert encased in a sheet metal shield. Insert shall be the same thickness as the pipe insulation. Insulation insert shall extend 1-inch beyond shield. Inserts shall be Pipe Shields, Inc., or Hershey-approved equivalent. Hangers shall be installed by Specification 15145 (Hangers and Supports) Contractor. The insulation Contractor shall be responsible for the joining of the insulation to the pre-insulated pipe hanger or support per the manufacturer's written instructions to achieve a continuous unbroken vapor seal. For urethane inserts, apply a wet coat of vapor barrier lap cement on all butt joints and seal the joints with a minimum of three-inch wide vapor barrier tape.

4. Jacketing - Install jacketing material over pipe and fittings after all insulation has been applied, in strict accordance with the jacketing manufacturer's written instructions.

C. Installation Details - Class P4

1. Pipe - Insulate pipe with preformed sections of glass fiber insulation. Insulation shall be applied over clean dry pipe with all joints butted firmly together. Longitudinal jacket laps and butt strips shall be smoothly secured according to manufacturer's written recommendations. Use of insulation with an integral vapor-barrier jacket is acceptable.

2. Hangers - Horizontal pipe shall be protected at the point of support by a high-density calcium silicate insert encased in a sheet metal shield. Inserts shall be the same thickness as the pipe insulation. Inserts shall be Pipe Shields, Inc., or Hershey-approved equivalent. Hangers shall be installed by Specification 15145 (Hangers and Supports) Contractor. The insulation Contractor shall be responsible for the joining of the insulation to the pre-insulated pipe hanger or support per the manufacturer's written instructions. For calcium silicate inserts, apply three-inch wide vapor barrier tape or galvanized strap over the butt joint.


D. Installation Details - Class P5

1. Pipe - Insulate pipe with preformed sections of glass fiber insulation. Insulation shall be applied with a continuous, unbroken vapor seal. Hangers, supports, anchors, etc., which are secured directly to cold surfaces, must be adequately insulated and vapor-sealed to prevent condensation.

2. Hangers - Horizontal pipe shall be protected at the point of support by a high-density urethane insert encased in a sheet metal shield. Insert shall be the same thickness as the pipe insulation. Insulation insert shall extend one inch beyond shield. Inserts shall be Pipe Shields, Inc., or Hershey-approved equivalent. Hangers shall be installed by Specification 15145 (Hangers and Supports) Contractor. The insulation Contractor shall be responsible for the joining of the insulation to the pre-insulated pipe hanger or support per the manufacturer's written instructions to achieve a continuous unbroken vapor seal. For urethane inserts, apply a wet coat of vapor barrier lap cement on all butt joints and seal the joints with a minimum of three-inch wide vapor barrier tape.


E. Installation Details - Class P6


Execution

1. Pipe: Pipe shall be insulated with TechLite® ASJ 79 preformed melamine foam, pre-jacketed with an ASJ vapor barrier covering. Butt joints and seams shall be covered with self-adhesive ASJ butt strips. Exposed foam near fittings etc. shall be sealed with factory approved mastic or GE RTV 6708 sealer. Follow all manufacturers recommended installation procedures.

2. Fittings shall be insulated with pre-molded melamine foam or wrapped with melamine foam diapers to same insulation thickness as adjoining pipes. Foam shall be covered with molded PVC cover or coated with 3 layers of approved mastic.

3. On below ambient systems, butt joints between every 3rd section (12’) of insulation shall be sealed with CP-70 sealer. Butt joint seal all fittings.

4. Hangers: Inserts of oak or high-density foam the same thickness of the insulation shall be installed at any support point to prevent compression of the insulation. Support pieces shall be installed inside the jacket so as to maintain the vapor barrier seal. Follow manufacturer’s hanger support guidelines for support sizes and shields.

5. Outdoors: Aluminum jacketing shall be applied over insulation per industry standards with all seams sealed to prevent water ingress. Follow Hershey guidelines in paragraph 3.1.

F. Installation Details – Class P7

1. Pipe: Pipe shall be insulated with TechLite® 379 pre-formed melamine foam, pre-jacketed with a polyester-reinforced, 30-mil PVC covering. All overlap joints and seams shall be chemically welded with approved PVC sealers. Exposed foam near fittings etc. shall be sealed with factory approved mastic or GE RTV 6708 sealer. Follow all manufacturers’ recommended installation procedures.


3. On below ambient systems, butt joints between every 3rd section (12’) of insulation shall be sealed with CP-70 sealer. Butt joint seal all fittings. Over seal all seams with GE RTV 6708 to prevent water/vapor ingress.


G. Installation Details – Class P8

1. Pipe: Pipe shall be insulated with TechLite® 879 pre-formed melamine foam, pre-jacketed with a 20-mil PVC covering. All overlap joints and seams shall be chemically welded with approved PVC sealers. Exposed foam near fittings etc. shall be sealed with factory approved mastic or GE RTV 6708 sealer. Follow all manufacturers recommended installation procedures.



Execution

3. On below ambient systems or severe wash down conditions, butt joints between every 3rd section (12’) of insulation shall be sealed with CP-70 sealer. Butt joint seal all fittings. Over seal all seams with GE RTV 6708 to prevent water/vapor ingress during pressure cleaning.


3.3. Pipe JacketingA. Install jacketing with horizontal seams overlapped and facing downward to shed water. Vertical

seams shall be overlapped facing down and sealed. Jacketing penetrations shall be sealed and laminated with a minimum of 3 layers of sealer.

B. Plastic Jacketing:

1. Plastic jacketing shall be CEEL-CO "CEEL-TITE" 330 PVC-UVR with a thickness of 0.030 inches, applied to pipe and fitting insulation. A Hershey-approved equal may be substituted. Use preformed shapes for tees, elbows, caps, etc. All seams and joints shall be chemically welded. Plastic jacketing shall be ultraviolet light resistant.

2. The installation shall comply with the manufacturer's written instructions including the following:

a. Jacket shall be cut to proper length and width, allowing for a 2-inch lap at longitudinal and circumferential seams. Longitudinal seams shall run along the sides of the pipe below the horizontal centerline of the pipe with the lap downward so as to shed water. Adjacent sections of jacketing shall have the laps staggered along opposite sides of the pipe. Jacketing shall be secured with insulation straps spaced on 12-inch maximum centers. Use of tacks is prohibited.

b. Weld all longitudinal and circumferential seams with CEEL-CO #300, or Hershey-approved equal, welding adhesive. Use a 1/8-inch diameter bead under all overlapping joints and on outside of overlap; feather this bead. Hold jacketing in place for at least 10 minutes. Use of tacks is prohibited.

c. At unions, flanges, valves, etc., cover exposed ends of insulation using caps with holes cut out to fit around pipe or valve stem. On steam pipes, cut holes so that plastic is 3/8 inch to 1/2 inch from pipe (or valve stem). Place Garlock, or Hershey-approved equal, washer underneath the cap. Apply a high temperature silicone caulking between cap and pipe. On cold lines, cut holes in caps to exact size of pipe (or valve stem), and seal with a recommended silicone.


Execution

d. To provide for thermal expansion of covering, a slip-joint should be used on long continuous runs of pipe (every 24 to 30 feet) and between fittings if the distance exceeds eight feet. The amount of temperature variation to which the covering is subjected will determine the number of slip-joints needed. A slip-joint should be used, however, between fixed supports. A simple slip-joint can be made by extending the overlapped section 6 to 10 inches beyond normal. These joints shall be sealed with silicone sealant. Apply no welding adhesive at the slip joints.

e. All sealants shall meet the requirements of Specification 07900, Joint Sealants.

3. Do not use PVC jacketing over single-layer insulation on hot piping where pipe temperature exceeds 300oF. PVC jacket may be used if insulation is double layer with staggered and broken joints.

C. Aluminum Jacketing

1. Aluminum jacketing shall be Childers aluminum roll jacketing, or Hershey-approved equivalent, applied to pipe and fitting insulation, and shall meet the following requirements:

a. Pipe - The aluminum jacketing for straight-run pipe shall be a minimum of 0.016 inch thick, plain mill finish, with factory-attached moisture barrier, and shall be closely fitted around the outside diameter of the insulation. End joints on pipe shall overlap each other by approximately 2 inches. Longitudinal joints on horizontally run pipe shall be located below the centerline of the pipe, with the lap downward to shed water with a minimum overlap of 1 inch.

b. Fittings - The aluminum jacketing for fittings shall be sectional, factory-contoured, or field-fabricated to fit closely around the insulation. Joints shall be a lock-type or shall overlap adjacent sections by a minimum of 1 inch. Jackets on fittings shall be installed prior to the installation of straight-run pipe jackets.

c. Bands - Straight sections of aluminum jackets shall be neatly secured with bands and seals placed with a maximum spacing of 9 inches on center. End joints (circumferential lap) shall be secured with bands and seals centered directly over the joint. Bands shall be 0.020 inch by 1/2 inch aluminum.

d. All joints in aluminum jacketing shall be sealed with clear silicone sealant meeting the requirements of Specification 07900, Joint Sealants.

D. Stainless Steel Jacketing:

1. Type 304 stainless steel jacketing shall be Childers stainless steel roll jacketing, or Hershey-approved equivalent, applied to pipe and fitting insulation, and shall meet the following requirements:

a. Pipe - The stainless steel jacketing for straight-run pipe shall be a minimum of 0.010 inch thick, standard 2B mill finish, with factory-attached moisture barrier, and shall be closely fitted around the outside diameter of the insulation. End joints on pipe shall overlap each other by approximately 2 inches. Longitudinal joints on horizontally run pipe shall be located below the centerline of the pipe, with the lap downward to shed water with a minimum overlap of one inch.


Execution

b. Fittings - The stainless steel jacketing for fittings shall be sectional, factory-contoured, or field-fabricated to fit closely around the insulation. Joints shall be a lock-type or shall overlap adjacent sections by a minimum of 1 inch. Jackets on fittings shall be installed prior to the installation of straight-run pipe jackets.

c. Bands - Straight sections of stainless steel jackets shall be neatly secured with bands and seals placed with a maximum spacing of 9 inches on center. End joints (circumferential lap) shall be secured with bands and seals centered directly over the joint. Bands shall be 0.020 inch by 1/2 inch aluminum.

d. All joints in stainless steel jacketing shall be sealed with clear silicone sealant meeting the requirements of Specification 07900, Joint Sealants.

E. Jacketing Schedule

1. All insulated lines in the Utility Building, mechanical rooms and maintenance areas of the Production Building, the Office Building, and all outdoor lines will be jacketed with smooth aluminum, sealed and banded.

2. All insulated lines within the Milk Receiving Building, and all processing areas of the Production Building will be jacketed with plastic jacketing.

F. Factory Jacketed

1. Typically melamine foam is pre-jacketed from factory. Follow manufacturer’s guidelines for installation. If melamine foam is applied bare, jacket per the above guidelines.

3.4. Equipment InsulationA. Installation Details - Class E1

1. Insulation - Narrow curved sections of calcium silicate block insulation shall be applied lengthwise along cylindrically- shaped sections. Curvature of blocks shall match the curved surface of the equipment being insulated. Use factory-made curved insulation blocks except for small or irregular parts. Full-length sections shall be used throughout except where required to close the surface or to fit around irregular parts. Stagger all end joints. Open joints smaller than 1/8 inch shall be filled and smoothed over with insulating cement. The Contractor shall rework larger open joints. Seal all joints using joint sealer specified in the individual Insulation Specification.

2. Insulation Studs - Studs shall be gun-welded to underneath flat, underneath curved or irregular surfaces of equipment. Stud length shall be equal to thickness of the insulation. Install studs with spacing on 18-inch centers on the centerline of narrow sheets. Stagger stud location on adjacent strips. Install studs on 9-inch centers on wide sheets. Studs shall be of the same material as equipment being insulated.

3. For insulation thickness 3 inches and greater, the insulation shall be applied in double-layer construction, with staggered and broken joints. Where necessary, the Contractor shall furnish suitable expansion joints in the insulation to prevent cracking or wrinkling due to expansion and contraction of the surface being insulated. Expansion joint details shall be per insulation manufacturer's written recommendations.


Execution

4. Bands - Secure the insulation with bands and seals. Bands shall be spaced to hold insulation in contact with the equipment. Space bands on 12 inch centers and draw tight to partially embed the band.

5. Tack Coat - Apply a tack coat to the banded insulation in strict accordance with the manufacturer's written recommendations.

6. Reinforcing Cloth - Embed cloth membrane into wet tack coat. Smooth membrane to avoid wrinkles and overlap all seams at least two inches.

7. Finish Coat - Apply finish coat within the manufacturer's time allowance and in strict accordance with his recommendations.

8. Jacketing - If required, install jacketing over equipment after all insulation has been applied. The jacketing to be used is listed in Table 15270-2 (page 42). Suitable flashing or weatherproofing shall be provided at all nozzles, manholes, and other projections to prevent the entrance of water.

9. All stainless steel equipment with E1 insulation shall receive "Thurmalox 70" coating, or Hershey-approved equal, prior to insulating. Prepare the surfaces and apply coating in strict accordance with the manufacturer's written instructions. The coating shall be applied to all exterior surfaces of the equipment. The metal surfaces shall be clean and dry and shall be cleaned with a non-chlorinated, non-aliphatic solvent. Apply two coats of "Thurmalox 70", or Hershey-approved equal, to give a total dry film thickness of 2.0 to 2.5 mils. All openings in equipment shall be covered and proper precautions shall be taken as required to prevent overspray or spillage of Thurmalox coating from contaminating interior of equipment.

B. Installation Details - Class E3

1. Insulation - Apply sheets of flexible elastomeric cellular insulation in maximum 1-inch layers to equipment.

2. Application - Apply sheet insulation, smooth side out, in the following manner: Apply a brush coat of adhesive to insulation, leaving 1/2 inch along each edge uncoated, and to surface to be insulated. The surface to be insulated must be clean, dry, and free of dirt, scale, or loose paint. If the surface is covered with a primer, a test area of approximately two square feet shall be coated with adhesive to determine whether the solvent in the adhesive will loosen or lift the primer. If there is any indication of loosening or lifting the primer, the insulation shall not be applied until the primer is removed or replaced with acceptable material. Position sheets so each sheet overlaps adjacent sheets by 1/8 inch, staggering vertical butt joints on vertical surfaces and horizontal butt joints on horizontal surfaces. Spot adhere the center of the sheet, then press the butt edges into place to achieve a tight joint. Bond the remainder of the sheet by pressing firmly into place. Spread butt joints and apply adhesive with a small brush to both ends.

3. Jacketing - If required, install jacketing over equipment after all insulation has been applied, in strict accordance with the jacketing manufacturer's written instructions.

C. Installation Details – Class E4

1. Apply sheets of TechLite® 379 pre-cut, flexible, melamine foam in thickness up to 3.5 inches, pre-jacketed with polyester reinforced PVC material. Follow all manufacturer’s guidelines for installation. Stagger joints between sheets. Thickness greater than 3.5 inches will require multiple layers.


Execution

2. Underside or irregular surfaces will require mechanical fasteners to support the insulation.

3. Cover the tank or vessel surface (roll, brush or spray) with approved contact adhesive and allow the adhesive to become tacky. Starting at the bottom, press one sheet at a time onto the pressure sensitive glue.

4. Always overlap the jacket seams to facilitate water shedding. Begin at the bottom of the walls and insulate one row at a time.

5. All seams are to be chemically welded with factory approved PVC cement. Staple with an outward clinch staple gun 1/2 inch from the edge every 6 inches along the seams.

6. Any uninsulated protrusions, bare foam, supports studs and staples must be sealed with a high temperature silicone GE RTV 6708 or vapor barrier mastic per factory guidelines.

D. Installation Details – Class E5

1. Apply sheets of TechLite® 879 pre-cut, flexible, melamine foam in thickness up to 3.5 inches, pre-jacketed with a 20-mil PVC material. Follow manufacturer’s guidelines for installation. Stagger joints between sheets. Thickness greater than 3.5 inches will require multiple layers.

2. Underside or irregular surfaces will require mechanical fasteners to support the insulation.

3. Cover the tank or vessel surface (roll, brush or spray) with approved contact adhesive and allow the adhesive to become tacky. Starting at the bottom, press one sheet at a time onto the pressure sensitive glue.

4. Always overlap the jacket seams to facilitate water shedding. Begin at the bottom of the walls and insulate one row at a time.

5. All seams are to be chemically welded with factory approved PVC cement.

6. Any uninsulated protrusions, bare foam, supports studs and staples must be sealed with a high temperature silicone GE RTV 6708 or vapor barrier mastic per factory guidelines.

3.5. Equipment Jacketing A. Aluminum Jacketing

1. Weatherproof aluminum jacketing shall be installed on equipment noted in Table 15270-2 (page 42). The jacketing shall be Childers aluminum roll jacketing, or Hershey-approved equivalent, with factory-attached moisture barrier. Jacketing shall be a minimum of 0.020 inch thick, with smooth finish. Joints shall overlap approximately 2 inches and shall be lapped to shed water. Suitable flashing or weatherproofing shall be provided at all nozzles, manholes, and other projections to prevent the entrance of water. Seal all joints with silicone sealant as specified in Specification 07900, Joint Sealants. Jacketing shall be neatly secured with bands and seals placed with spacing no greater than 9 inches on center. Bands shall be stainless steel, 0.020 inch by 1/2 inch.

B. Stainless Steel Jacketing


Execution

1. Weatherproof stainless steel jacketing shall be installed on equipment noted in Table 15270-2 (page 42). The jacketing shall be Childers stainless steel roll jacketing, or Hershey-approved equivalent, with factory-attached moisture barrier. Jacketing shall be T-304 stainless steel and a minimum of 0.010 inch thick, with smooth finish. Joints shall overlap approximately 2 inches and shall be lapped to shed water. Suitable flashing or weatherproofing shall be provided at all nozzles, manholes, and other projections to prevent the entrance of water. Seal all joints with silicone sealant as specified in Specification 07900, Joint Sealants. Jacketing shall be neatly secured with bands and seals placed with spacing no greater than 9 inches on center. Bands shall be stainless steel, 0.020 inch by 1/2 inch.

C. Factory Jacketed

1. Typically pre-jacketed from the factory. Follow manufacturer’s guidelines for installation. If melamine foam is applied bare, jacket per the above guidelines.

3.6. Duct InsulationA. Installation Details - Class D3

1. Insulate ducting, fittings and irregular shapes with sheet and roll insulation. Sheet and roll insulation is supplied with skin on one side and should always be applied with the skin side out. Cuts must be accurate to assure full contact with mating sheets when bonded together. Primed and painted surfaces should be adhesive tested beforehand to be sure that insulation will not lift off after application. Brush or roll a thin, even coat of adhesive on the cellular surface and on the surface to be insulated. Allow the adhesive film to become dry to the touch, but tacky, before joining surfaces. Place the sheet tightly against the mating sheet or sheets. Be sure it is in the desired position before the adhesive surfaces make initial contact since the adhesive forms an instant bond and repositioning is difficult after contact. Allow the material to remain in a relaxed state and apply pressure inward to the surface until the entire adhesive area is contacted. Seal longitudinal and butt joints as described for piping.

2. Duct flanges, connections, and reinforcing shall be covered with 3-inch wide strips of insulation. Jacket shall extend 2 inches beyond both sides of the insulation strip to provide a pasting lap. Clean surfaces and then paste and seal laps with Childers No. CP-82, Foster No. 85-20, MI 225, or Hershey-approved equal, adhesive.

3. All edges, joints, punctures, pin ends, and clips shall be cleaned and then sealed with 4 inch wide; 0.0025 inch aluminum foil tape adhered with Childers No. CP-82, Foster No. 85-75, MI 225, or Hershey-approved equal, adhesive.

4. Secure all exposed exterior edges of insulated ductwork with aluminum corner bead. After corner beads are in place, coat entire duct with a heavy coat of Childers No. CP-30, Foster No. 30-35, MI No.501, or Hershey-approved equal, vinyl base mastic. Embed 10 x 10 weaver glass cloth in original coat and while still wet apply a finish second coat of same.

5. Concealed ductwork shall be insulated the same as exposed except corner beads, 2 coats of mastic and glass cloth are not required. Concealed ductwork shall mean ductwork above suspended ceilings or in chases.


Execution

6. All exterior insulated ductwork exposed to the weather shall be jacketed with two coats of metallic gray Childers Vicryl Weatherproofing Coating CP-10 with Chilglass No. 5 glass cloth embedded between the first and second coats. A Hershey-approved equal may be substituted. Jacket shall be applied according to manufacturer's specifications and shall meet ASTM-E84 fire hazard classification.

7. Finish shall be two coats of white UV-resistant urethane compatible paint.

B. Installation details – Class D4

1. Insulate ducts, fittings and irregular shapes with TechLite® ASJ 79 flexible melamine foam sheets pre-jacketed with ASJ vapor barrier. Follow manufacturer’s guidelines for installation. Apply contact adhesive to one or both surfaces and allow it to become tacky. Press foam onto duct making full contact with the surface. Use mechanical fasteners on underside surfaces. Seal all seams with ASJ adhesive tape. Any protrusions through the jacketing shall be sealed with approved mastic or GE RTV 6708 silicone. Seal all corners with strips of ASJ adhesive tape.

C. Installation details – Class D5

1. Insulate ducts, fittings and irregular shapes with TechLite® 379 flexible melamine foam sheets pre-jacketed with a polyester reinforced PVC fabric vapor barrier. Follow manufacturer’s guidelines for installation. Apply contact adhesive to one or both surfaces and allow it to become tacky. Press foam onto duct making full contact with the surface. Use mechanical fasteners on underside surfaces. Use butt strips of jacket material at all joints and chemically weld all seams. Any protrusions through the jacketing shall be sealed with approved mastic, GE RTV 6708 silicone and vinyl tape.

D. Installation details – Class D6

1. Insulate ducts, fittings and irregular shapes with TechLite® 879 flexible melamine foam sheets pre-jacketed with a high impact PVC vapor barrier. Follow manufacturer’s guidelines for installation. Apply contact adhesive to one or both surfaces and allow it to become tacky. Press foam onto duct making full contact with the surface. Use mechanical fasteners on underside surfaces. Use butt strips of jacket material at all joints and chemically weld all seams. Any protrusions through the jacketing shall be sealed with approved mastic, GE RTV 6708 silicone and vinyl tape.


Insulation Specifications And Tables

4. INSULATION SPECIFICATIONS AND TABLES4.1. Insulation Specification Class D3

MATERIAL

Pipe and Fitting Insulation

Insulation Preformed sections of flexible elastomeric cellular insulation. Insulation shall have a flame-spread rating of 25 or less by ASTM E84.

Adhesive Manufacturer's air-drying contact adhesive.

Finish Manufacturer's outdoor finish. No finish required indoors.

Specification ASTM Manufacturer

Insulation C534 Armstrong Armaflex II Rubatex R-180-FS

Adhesive -- Armstrong 520 Rubatex 373

Finish -- Armstrong Armaflex Finish Rubatex 374 Finish

NOTE - Exposed finish shall be resistant to ultraviolet light.



4.2. Insulation Specification Class D4MATERIAL

Duct Insulation

Insulation One piece, flexible, melamine foam, pre-jacketed with ASJ vapor barrier and cut to various sheet sizes. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity K factor @ 75º F = 0.26 Flame spread 10, smoke density 50.


Finish Vapor barrier jacket of laminated aluminum foil and kraft paper with glass scrim reinforcement and a self-sealing tape closure strip, factory applied to the melamine foam in a one-piece system.


Insulation C-1410 Accessible Products Co. TechLite® ASJ 79

Adhesive -- 3M #49 or #4550

Finish E-84 25/50 Accessible Products Co. ASJ jacket

NOTE - Exposed finish shall be resistant to ultraviolet light.




Duct Insulation

Insulation One piece, flexible, melamine foam, pre-jacketed with a polyester fabric reinforced vapor barrier and cut to various sheet sizes. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity K factor @ 75º F = 0.26 Flame spread 10, smoke density 50.

Adhesive Air-dry adhesive per manufacturer

Finish Vapor barrier jacket of polyester fabric reinforced PVC and a self-sealing tape closure strip, factory applied to the melamine foam in a one-piece system.


Insulation C-1410 Accessible Products Co. TechLite® 379


Finish E-84 25/50 Accessible Products Co. 300 jacket




Duct Insulation

Insulation One piece, flexible, melamine foam, pre-jacketed with a high impact PVC vapor barrier and cut to various sheet sizes. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity K factor @ 75º F = 0.26 Flame spread 10, smoke density 50.

Adhesive Air-dry adhesive per manufacturer

Finish Vapor barrier jacket of a high impact PVC and a self-sealing tape closure strip, factory applied to the melamine foam in a one-piece system.


Insulation C-1410 Accessible Products Co. TechLite® 879


Finish E-84 25/50 Accessible Products Co. 800 jacket



4.5. Insulation Specification Class P1MATERIALS

Pipe Insulation

Insulation Preformed sections of calcium silicate

Joint Sealer Hydraulic-setting, insulating and finishing cement.

Fitting Insulation

2" and Smaller Hydraulic-setting, insulating and finishing cement.

2-1/2" and Larger Preformed fitting covers or mitered sections of pipe insulation.

Joint Sealer Hydraulic-setting, insulating and finishing cement.

Protective Coating "Thurmalox 70" heat resistant coating, The Dampney Co., Everett, Massachusetts

Insulation Hanger Pipe Shields, Inc., San Jose, California

Insert Material Calcium Silicate

Specifications ASTM Manufacturer

Pipe and Fitting Insulation* C533, Type I Manville Thermo-12Pabco Super Caltemp Owens-Corning Kaylo

Insulating and Finishing Cement C449 Manville No. 375Pabco Pabcote 48 Insulation Co. Super 48

*Insulation and cement shall be asbestos-free and shall be chloride-free or have adequate inhibitors so it shall not cause stress-corrosion cracking of stainless steel.




Pipe and Fitting Insulation

Insulation Preformed sections of flexible elastomeric cellular pipe insulation. Insulation shall have a flame-spread rating of 25 or less by ASTM E84.


Finish Aluminum or 3 Mil PVC finish per jacketing schedule.

Insulation Hanger Pipe Shields, Inc., San Jose, California

Insert Material Urethane


Insulation C534 Armstrong Armaflex IIRubatex R-180-FS

Adhesive --- Armstrong 520 Rubatex 373

Finish --- Armstrong Armaflex Finish Rubatex 374 Finish

NOTE: Exposed finish shall be resistant to ultraviolet light.




Pipe Insulation

Insulation Glass fibers bonded with thermosetting resin preformed to fit normal pipe or tubing sizes. Nominal density of 4 lb. per cu.ft. Thermal conductivity "k" not over 0.25 at 75o F. Flame spread 25, smoke developed 50.

Insulation Hanger Insert Material Pipe Shields, Inc., San Jose, California. Calcium Silicate

Jacket Laminated of aluminum foil and treated kraft paper with glass fiber scrim reinforcement and with self-sealing adhesive closure tab.

Fitting Insulation

Insulation Glass fiber precut to match fittings. Conductivity "k" of 0.27 at 75oF; thickness shall match pipe insulation.

Cover Preformed one piece PVC flexible noncombustible cover fastened with sealing tape.

NOTE: PVC shall be resistant to ultraviolet light.


Pipe insulation C547 Manville Micro-Lok Owens-Corning Fiberglass ASJ/SSL-II CertainTeed Snap-On ASJ 500° Snap-On Knauf ASJ Pipe Insulation

Fitting Insulation --- Manville Zeston




Pipe Insulation

Insulation Glass fibers bonded with thermosetting resin preformed to fit normal pipe or tubing sizes. Nominal density of 4 lb. per cu. ft. Thermal conductivity "k" not over 0.25 at 75o F. Flame spread 25, smoked developed 50.

Insulation HangerInsert Material

Pipe Shields, Inc., San Jose, California.Urethane

Jacket Vapor barrier jacket, laminated of aluminum foil and treated kraft paper with glass fiber scrim reinforcement and with self-sealing adhesive closure tab.

Fitting Insulation

Insulation Glass fiber precut to match fittings. Conductivity "k" of 0.27 at 75° F; thickness shall match pipe insulation.

Cover Vapor barrier cover, preformed one-piece PVC flexible non-combustible cover fastened with sealing tape.



Pipe insulation C547 Manville Micro-Lok w/AP-T Plus jacket Owens-Corning Fiberglass ASJ/SSL-II CertainTeed Snap-On ASJ 500° Snap-On Knauf ASJ Pipe Insulation

Fitting Insulation --- Manville Zeston




Pipe Insulation

Insulation Pre-formed section of flexible, melamine foam pre-jacketed with ASJ vapor barrier and cut to fit normal pipe and tubing sizes. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity k factor @ 75º F = 0.26 Flame spread 10, smoke density 50.



Jacket Vapor barrier jacket of laminated aluminum foil and kraft paper with glass scrim reinforcement and a self-sealing tape closure strip, factory applied to the melamine foam in a one-piece system.

Fitting Insulation

Insulation Flexible melamine foam preformed to the fitting, or flexible melamine foam diapers to be wrapped to match the pipe insulation. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity k factor @ 75º F = 0.26 Flame spread 10, smoke density 50.

Cover Vapor barrier cover, preformed one piece, UV resistant, flexible PVC cover, sealed with tape and/or solvent welded.



Pipe insulation C-1410 Accessible Products Co. TechLite® ASJ 79

Fitting Insulation --- Accessible Products Co




Pipe Insulation

Insulation Preformed sections of flexible, melamine foam pre-jacketed with a polyester reinforced PVC fabric vapor barrier and cut to fit normal pipe and tubing sizes. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity k factor @ 75º F = 0.26 Flame spread 10, smoke density 50.



Jacket Vapor barrier jacket of polyester reinforced PVC fabric and a self-sealing tape closure strip, factory applied to the melamine foam in a one-piece system.

Fitting Insulation


Cover Vapor barrier cover, preformed one piece, UV-resistant, flexible PVC cover, chemically welded at the seams.



Pipe insulation C-1410 Accessible Products Co. TechLite® 379Fitting Insulation --- Accessible Products Co




Pipe Insulation

Insulation Preformed sections of flexible, melamine foam pre-jacketed with a high impact PVC vapor barrier and cut to fit normal pipe and tubing sizes. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity k factor @ 75º F = 0.26 Flame spread 10, smoke density 50.



Jacket Vapor barrier jacket of high impact PVC and a self-sealing tape closure strip, factory applied to the melamine foam in a one-piece system.

Fitting Insulation


Cover Vapor barrier cover, preformed one piece, UV-resistant, flexible PVC cover, chemically welded at the seams.



Pipe insulation C-1410 Accessible Products Co. TechLite® 879Fitting Insulation --- Accessible Products Co


Insulation Specifications and Tables

4.12. Table 15270-1 Pipe Insulation by ServiceTABLE 15270-1

PIPE INSULATION BY SERVICE(SAMPLE)

INTERIOR EXTERIORSYMBOL DESCRIPTION SIZE INSULATION

TYPE INSULATION THICKNESS

INSULATION TYPE

INSULATION THICKNESS

AA Air, Intake All -- -- -- --

AC Air, Conveying All -- -- -- --

ACN Acid Concentrate, Nitric All -- -- P4 1"

ACP Acid Concentrate ("Demand") All -- -- P4 1"

AD Air, Dairy All -- -- -- --

ADR Air, Process (Dryer) All D3 3/4" -- --

AP Air, Plant All -- -- -- --

ASI Alkaline Solution ("Interest") All -- -- P3 1"

ASL Alkaline Solution ("Liqua-Brite") All P3 3/4" P3 1"

BBD Boiler Blowdown 1/2" to 3/4"1" to 2"

P1P1

1"2”

----

----

BCD Boiler Continuous Blowdown 3/4"1” to 2”

P1P1

1"2”

----

----

BFW Boiler Feedwater 1/2" to 2"2-1/2” to 6”

P1P1

2"3”

----

----



TABLE 15270-1 PIPE INSULATION BY SERVICE

(SAMPLE)INTERIOR EXTERIOR

SYMBOL DESCRIPTION SIZE INSULATION TYPE


INSULATION TYPE


CD Condensate Trap Discharge 1/2" to 1"1-1/2" to 4”6” &Larger

P1P1P1

1-1/2"2"3” (Note 6. )

P1P1P1

1-1/2"3" (Note 6. )4” (Note 6. )

CHP Chocolate Paste 2" to 6"8”

P3P3

3/4"3/4”

P3 1"

CJ Chemical Treatment 1/2" to 2" -- -- -- --

CL (01) Chocolate Liquor (01 Grade) (Note 9. )

2" & Larger P3 3/4" (Notes 8. , 11. )

P1 1"

CMK Clarified Milk 1-1/2" to 3" -- -- P3 1"

COB Cocoa Butter (Note 9. )

1" to 6" P3 3/4" (Note 8. ) P3 1"

COB/VAN Cocoa Butter & Vanillin Slurry 1" to 2" P3 3/4" (Note 8. ) -- --

CPD Condensate Pump Discharge 1/2" to 2" 2-1/2" to 4"6" & Larger

P1P1P1

1-1/2"2”3” (Note 6. )

P1P1P1

2"3” (Note 6. )4” (Note 6. )

CS Culinary Steam (Note 1. )

1/2" to 1"1-1/2” to 3”4”

P1P1P1

1-1/2"2”3” (Note 6. )

------

------

CSM (*) Condensed Sweet Milk (*=% Total Solids)

1" to 4" -- -- -- --







INSULATION TYPE


CSR Cleaning Solution Return 1" to 4" -- -- P4 1"

CSS Cleaning Solution Supply 1” to 4” -- -- P4 1”

CTR Cooling Tower Return All -- -- -- --

CTS Cooling Tower Supply All -- -- -- --

CWR Chilled Water Return 1/2” to 2”2-1/2” & Larger

P3P3

1”1-1/2”

P3P3

1-1/2”2”

CWS Chilled Water Supply 1/2” to 2”2-1/2” & Larger

P3P3

1”1-1/2”

P3P3

1-1/2”2”

EXH Engine Exhaust All P1 1-1/2” (Note 2. ) -- --

FGR Flue Gas Recirculation 16” thru 18” P1 3” -- --

FL Fire Protection Line -- -- -- -- --

FOR Fuel Oil Return All -- -- -- --

FOS Fuel Oil Supply All -- -- -- --

GLR Glycol Return 1/2” to 2”2-1/2” & Larger

P3P3

1”1-1/2”

P3P3

1-1/2”2”

GLS Glycol Supply 1/2” to 2”2-1/2” & Larger

P3P3

1”1-1/2”

P3P3

1-1/2”2”

HFR Hydraulic Return All -- -- -- --







INSULATION TYPE


HFS Hydraulic Supply All -- -- -- --

HWR Hot Water Return125 OF Service140 OF Service180 OF and 230 OF Service

AllAll1/2” to 4”6” & Larger

--P3P4P4

--3/4”1”1-1/2”

P3------

3/4”------

HWS Hot Water Supply125 OF Service140 OF Service180 OF and 230 OF Service

AllAll1/2” to 4”6” & Larger

--P3P4P4

--3/4”1”1-1/2”

P3------

3/4”------

HWV Hot Water Vent All P4 (Note 2. ) -- --

LC Lithium Chloride< 140 OF >140 OF

AllAll

P3P4

3/4”1-1/2”

----

----

LEC Lecithin All P1 1” -- --

LEC/COB Lecithin - Cocoa Butter Slurry All -- -- -- --

MCR Mixer Crumb All -- -- -- --

NG Natural Gas All -- -- -- --

NHG Ammonia Hot Gas All P4 (Note 7. ) 1-1/2” (Note 7. ) P4 1-1/2”







INSULATION TYPE


NHL Ammonia Liquid All P3 (Note 5. ) 1” (Note 5. ) -- --

NHP Ammonia Pumpout All -- -- -- --

NHS Ammonia Suction 1/2” to 2”2-1/2” to 4”6” & Larger

P3P3P3

1”1-1/2”2”

------

------

NHV Ammonia Vent All P4 (Note 2. ) -- --

PDR Process Drain 1/2” & Larger -- -- -- --

PRVProcess Vent 1/2” & Larger -- -- -- --

PW Plant Water All P3 3/4” P4 1”

RCR Refiner Chocolate Crumb All -- -- -- --

RMK Raw Milk 1” to 4” -- -- P4 1”

RRP Rerun Product 1” to 4” -- -- -- --

SCW Sanitary COW Water All -- -- -- --

SD Sanitary Drain All -- -- -- --

SH Steam, High Pressure(Note 1. )

1/2” to 1”1-1/2” to 3”4” to 12”

P1P1P1

1-1/2”2”3” (Note 6. )

P1PP1

2”3” (Note 6. )4” (Note 6. )







INSULATION TYPE


SL Steam, Low Pressure 1/2” to 1”1-1/2” to 3”4” to 12”

P1P1P1

1-1/2”2”3” (Note 6. )

P1P1P1

2”3” (Note 6. )4” (Note 6. )

SMK Sweet Milk 1” to 4” -- -- -- --

SP Sprinkler Piping -- -- -- -- --

ST Storm Piping All -- -- P4 1”

SUG Sugar All -- -- -- --

SV Steam Vent All P1 (Note 2. ) (Note 2. ) -- --

VAC Vacuum All -- -- -- --

VAP Vapor All P1 1” -- --

WCW COW Water All P3 3/4” P3 1”

WD Water, Domestic All K402All G501

P3P3

3/4”3/4”

P3--

1”--

WDH Water, Domestic, Hot All P3 3/4” P3 1”

WP Water, Process All P3 3/4” P3 1”

WS Water, Softened All P3 3/4” -- --



Notes:1. Provide 1" of Class P1 insulation for personnel protection only, less than 7 ft. above the floor, for CS, SH and SL lines from relief valves to atmosphere. All

other CS, SH and SL lines shall be completely insulated.2. Provide Class P1 insulation for personnel protection only, less than 7 ft. above the floor, or within 5 ft. of personnel access. Insulation thickness to be 1" for

pipe sizes 6" and smaller, and 1-1/2" for pipe sizes 8" and larger.3. Not Used4. Not used.5. Insulate the following Ammonia piping with 1" of Class P3 insulation:

a) All valves and controls in direct contact with cold ammonia liquid gas.b) Ammonia Liquid lines and associated equipment and valves in direct contact with cold ammonia liquid or gas, in conjunction with the water chillers.

This shall include all liquid lines where ammonia expansion has taken place.c) Other Ammonia Liquid lines, valves, etc., where the usage puts the line at a cold operating temperature.

6. For insulation thickness 3" and greater, apply insulation in double-layer construction, with staggered and broken joints.7. Provide 1-1/2" of class P4 insulation for personnel protection only, less than 7 ft. above the floor, or within 5 ft. of personnel access.8. Insulation is not required in 95 OF areas. These areas include Room B05, Room 104, Room 105, Room 106, Room 121, Room 203 and Room 204. See

Architectural Drawings for room locations.9. Provide 3/4" of P3 insulation where lines are electrically heat-traced.10. Cover flue gas recirculation with aluminum jacketing.11. Hot water-jacketed pipe is not insulated.



4.13. Insulation Specification Class E1MATERIALS

Equipment Insulation

Insulation Blocks or curved segments of calcium silicate

Welding Studs Plain, non-threaded speed nuts; carbon steel or stainless steel to match equipment

Joint Sealer Hydraulic-setting, thermal insulating and finishing cement.

Bands 3/4" x 0.020" Type 304 stainless steel with matching wing seals

Protective Coating "Thurmalox 70" heat resistant coating, The Dampney Co., Everett, Massachusetts

Finish

Tack Coat Fire- and mildew-resistant, non-toxic, water based breather mastic; service range minus 20oF to 180oF.

Reinforcing Membrane High-strength, open weave, pre-sized fiberglass cloth.

Finish Coat Same as breather mastic tack coat, applied as a total at the rate of 50 sq. ft./gal.


Equipment Insulation* C533, Manville Thermo-12 Type IPabco Super CalTemp Owens-Corning Kaylo

Thermal Insulating Cement* C449 Manville No. 375 Pabco Pabcote

Reinforcing Membrane D579 Childers Chil-Glas #5 or #10

Tack Coat and Finish Coat C461 Childers CP-10

* Insulation and cement shall be asbestos-free and shall be chloride-free or have adequate inhibitors so it shall not cause stress-corrosion cracking of stainless steel.





Insulation Flexible elastomeric cellular sheet insulation. Insulation shall have a flame spread rating of 25 or less by ASTM E84.


Finish Manufacturer's outdoor finish. No finish required indoors.


Insulation C534 Armstrong Armaflex II Rubatex R-180-FS

Adhesive --- Armstrong 520 Rubatex 373

Finish --- Armstrong Armaflex Finish Rubatex 374 Finish






Insulation One piece, flexible, melamine foam sheets, pre-jacketed with a polyester fabric reinforced PVC vapor barrier. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity K factor @ 75º F = .26 Flame spread 10, smoke density 50.

Jacket Vapor barrier jacket of polyester fabric reinforced PVC and a self-sealing tape closure strip, factory applied to the melamine foam in a one-piece system. All seams chemically welded and stapled.

Joint Sealer Childers CP-70

Protective coating Fosters 30-80, 30-90, 60,90, 60-95

Contact cement 3M #49 or #4550 air dryReinforcement cloth Fosters Mast-a-Fab polyester clothWelded studs Plain, non-threaded speed nuts, materials to match equipment.


Insulation C-1410 Accessible Products Co. TechLite 379

Adhesive --- 3M #49 or #4550

Finish --- Accessible Products Co. 300 jacket






Insulation One piece, flexible, melamine foam sheets, pre-jacketed with a high impact PVC vapor barrier. Normal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity K factor @ 75º F = .26 Flame spread 10, smoke density 50.

Jacket Vapor barrier jacket of high impact PVC and a self-sealing tape closure strip, factory applied to the melamine foam in a one-piece system. All seams chemically welded.

Joint Sealer Childers CP-70

Protective coating Fosters 30-80, 30-90, 60,90, 60-95

Contact cement 3M #49 or #4550 air dryReinforcement cloth Fosters Mast-a-Fab polyester clothWelded studs Plain, non-threaded speed nuts, materials to match equipment.


Insulation C-1410 Accessible Products Co. TechLite 879

Adhesive --- 3M #49 or #4550

Finish --- Accessible Products Co. 300 jacket




4.17. Table 15270-2 Equipment to be InsulatedTABLE 15270-2

EQUIPMENT TO BE INSULATEDEquipment Number

Equipment Insulation Class

Insulation Thickness

Insulation Jacket


Documents

CONSTRUCTION SPECIFICATION 15270 · Web viewNormal density of 0.6 - 0.7 lb per cu. ft. Thermal conductivity K factor @ 75º F = .26 Flame spread 10, smoke density 50. Jacket Vapor