Piping ServicesHot Tapping, Line Stopping, Valve Inserting,Repair Clamps, Manufacturing

Relax, It’s Been FurmanitedFurmanite’s engineering, manufacturing, and field personnel are exceptionally qualified

to give you fast and correct solutions to any type of piping problem. We own and

operate the most complete line of hot/wet tapping, line stopping, valve inserting, and

repair clamp equipment available. Much of it is proprietary machinery designed by

our engineers and built at Furmanite’s manufacturing facilities. Our capabilities assure

our customers that we can meet virtually every possible pressure, temperature, and/or

size application.

We design, develop, and manufacture both standard and custom fittings and equipment

for our customers, who include all major oil and gas companies, the chemical, pulp and

paper and steel industries, nuclear power plants, oil refineries, plus utility, water/waste-

water and industrial plants. Our products and services are available 24 hours a day, 365

days a year.

If you are considering modification of pressure piping, call Furmanite. We can show you

how to handle the job without shutdown or interruption of critical processes.

Furmanite’s full line of products and on-site services is designed to keep your piping sys-

tems onstream worldwide.

Continued on next page Ô

Furmanite:The Industry Leader in

End-to-End Maintenance,Solutions, Services and

Products:

For over 75 years,

Furmanite has made it

our business to keep

piping systems onstream

during maintenance,

retrofitting, alterations,

emergencies, and new

construction.

n Pipeline Intervention(Line Tapping and Stopping)

n Leak Managementand Repair

n Valve Managementand Repair

n Trevitest™ On-LineValve Testing

n Leak Detection and Repair/eCompliance™

n On-Site Machiningand Bolting

n Concrete / Composite Repair

n Tank Roof Repair

Hot/wet tapping is defined as using an under-pressure drilling machine to cut

a hole in an operating pipe, allowing a new branch connection from the

original pipe. This process is done without any product leakage or interruption

of flow. Furmanite manufactures a complete line of hot/wet tapping equipment

for tap sizes 1/2" (12.50 mm) to 72" (1800 mm) with pressure ratings to 1480 psi

and temperatures to 700°F as standard on all types of pipe. Special

applications are available on request.

36" (900 mm) wet tap on a water main.

Hot/Wet Tapping

6" (150 mm) wet tap on steel cylinder concretepipe for purge/equalization.

The components for a typical hot/wet tapapplication include a fitting designed tocontain system pressure, a valve used tocontrol the new connection, and a drillingmachine used to make the hot/wet tap.

The following is the basic procedure usedto perform a hot/wet tap:

1. Install fitting and valve on theexisting pipe.

2. Install hot tap machine.

3. Perform hot/wet tap through theopen valve. A special device retainsthe “coupon” removed during thehot tap operation.

4. Retract cutter assembly.

5. Close hot tapping valve.

6. Remove hot tap machine to allow forconnection to new pipe.

Typical Hot/Wet Tap Application

8" (200 mm) hot tap for line stop operation and 2" (50 mm) equalization tap.

14" (350 mm) line stop with bypass.

Line Stopping

Line stopping is a means of temporarily

stopping flow in an operating pipe. Line

stopping can be used to isolate piping

systems for repairs, alteration, or

relocations. If used in conjunction with

bypass lines, product flow can be

continued around the isolated section of

pipe to be repaired. The following pages

describe several line stopping procedures

and applications that Furmanite routinely

performs.

The folding-head line stop system, whichutilizes a reduced branch fitting, is anothercost-effective method of line stopping.Furmanite uses the folding-head line stop onwater/wastewater, transmission, oil, gas, andpetrochemical. Sizes range from 8" (200 mm)to 60" (1500 mm) with pressures to 150 psi.Larger sizes available upon request.

Sequence of 36" (900mm) folding headinstalled in steel cylinder reinforcedconcrete test pipe.

Three-way line stop fitting with folding head inserted to allow for installation of butterfly valve.

48" (1200 mm) folding head for crude oil line stop.

Folding-Head Line Stop

n Find experts who offersolutions to specific engineeringchallenges.

n Submit online requests fortechnical engineering services.

n Obtain detailed information about Furmanite’s services andpatented products includingfugitive emissions audit services;leak sealing and valve repairsolutions; onsite machining;bolting and more.

n Access information by industry or by service as you link directlyto case studies.

n Read success stories about howplant operators across manyindustries have successfullyimplemented immediate andmeasurable solutions for criticalchallenges.

n Reach any one of Furmanite’s 40offices on five continents.

Connect withFurmanite

Furmanite’s website isengineered to provide youwith fast answers:

Pivoting-Head Line Stop

Installation of sealing element on 6" (150 mm) pivoting head.6" (150 mm) pivoting-head line stopin heavily tuberculated line. 100%shutdown achieved.

The following is the basic procedure usedto perform a pivoting-head line stop:

1. Install line stop fitting and performhot/wet tap application as describedon previous pages.

2. Line stop equipment is installed onthe temporary tapping valve and thevalve is opened.

3. Line stop head enters the pipethrough the hot/wet tap connection.

4. Temporary seal is achieved and pipeflow is stopped (unless bypass is inplace).

5. Repair, alteration, or relocation of thepipe is performed.

6. Line stop head is removed from thepipe through the hot/wet tap connec-tion.

7. Temporary valve is closed and theline stop equipment is removed.

8. Completion plug is installed on thetapping machine.

9. Tapping machine is installed on the temporary tapping valve.

10. Temporary tapping valve is opened, the completion plug is installed in thebranch of the line stop fitting and locked into position.

11. Line stop equipment and temporary tapping valve are removed from the linestop fitting.

12. Blind flange is installed on the line stop fitting.

Sure-Stop sealing by Furmanite is a popular and proven cylinder-wedgemethod chosen by many customers for its positive mechanical seal.Traditionally limited from 4" (100 mm) to 12" (300 mm) pipe, this method is now available for larger diameter pipe, from 14" (350 mm) to 48" (1200 mm).

The positive mechanical seal provides two distinct advantages:

• Sealing on the machined edge eliminates problems related toerosion/corrosion, internal pipe buildup, or out-of-round pipe.

• The mechanically wedged seal allows new sections of pipe to bepressure tested between stops.

Double 20" (500 mm) Sure-Stop on natural gasline with 14" (350 mm) bypass.

Furmanite’s 20" (500 mm) Sure-Stop bottom-out fitting with completionplug installed.

Hot tap required for Sure-Stop operation.

Sure-Stop line stop operation.

Sure StopPositive Sealing for Large Diameters

HTP sealing by Furmanite is a popularand proven line stopping systemwhich provides a metal-to-metal sealat the pipe face. Standard high-tem-perature line stopping capabilitiesrange in size from 3/4" (18.75 mm) to 16"(400 mm) on temperatures to 700°Fwith pressures to 700 psi. Standardclass rating 600# and 900#.Applications include steam, hot oil,and most chemicals. The HTP stop isused most often by utilities, refineries,petrochemical, steel mills, paper mills,and other industries.

The Furmanite HTP Stop provides several advantages:

• Sealing on the machined edgeeliminates problems related toerosion/corrosion, internal pipebuildup, or out-of-round pipe.

• The mechanically locked line stop head allows downstream repairs, modifica-tions, or valve replacements tobe done safely as a “Block andBleed System.”

• Can be used on highertemperatures or pressures thanlisted above. Consult yourFurmanite representative forspecial applications.

• Special HTP fittings designedand manufactured to customerspecifications based on system parameters.

• Sealing surface is metal to metalon the upstream side, allowingfor the line stop head to be left onthe line longer than elastomerseals.

8" (200 mm) HTP linestop with 400 psi onsteam condensate linein paper mill.Temperatures up to700°F.

Hot tap required for HTP operation.

HTP line stop operation.

HTP StopPositive sealing for high-temperatureand pressure pipe systems

FloStop IIFurmanite lightweight hot/wet tapping

and line stopping system

Furmanite’s FloStop IIheavy-duty line stop fittings are availablein sizes 4" (100 mm) to12" (300 mm). The 4"(100 mm), 6" (150 mm),and 8" (200 mm) fit-tings are stainlesssteel. The 10" (250mm) and 12" (300 mm)are carbon steel.

Furmanite has developed the mostadvanced, lightweight, and durable wettapping and line stopping systemcurrently available to the water/waste-water and gas industries. Furmanite’sFloStop II system offers industry-accepted cylindrical rubber sealingelements or traditional pivoting heads.Line stops can be performed on 4" (100mm) to 12" (300 mm) lines withpressures to 250 psi. This easy-to-use,cost-competitive system not only meetsbut exceeds most industry requirementsand specifications.

Cylindrical rubber linestop machine assem-bled with valve andfitting. Cylindricalrubber stopper is inline stop position.Pressures to 100 psi.

12" (300 mm) FloStop II pivoting-head line stopon water main. Pressures to 250 psi.

Hot/wet tap on 12" (300 mm)ductile iron line using

IP412 FloStop II tappingmachine.

Alternate Line Stop Methods

8" (200 mm) wet tap for folding-head line stopapplication.

8" (200 mm) hot tap on cooling water line in acommercial building.

12" (300 mm) natural gas line stop using hot tap-ping and line stopping equipment.

Furmanite owns and operates a completeline of hot tapping and line stoppingequipment. Long popular with gascompanies, Furmanite can complementgas utilities service with our full range ofcapabilities. We also offer uniquesolutions to process plants where tightworking conditions might limit the use ofother styles of line stops.

Tee-Plug Line Stop orCross-Manifold Line Stop

Special innovations like this tee plug are used to stop offbranch connections where possible.

n Oahu, HIn Tacoma, WAn Vancouver, WAn Benicia, CAn Carson, CAn Salt Lake City, UTn El Dorado, KSn Broken Arrow, OKn Muskogee, OKn Beaumont, TXn Corpus Christi, TXn Houston, TXn LaPorte, TXn LaPlace, LAn Sulphur, LAn Downers Grove, ILn Merrillville, INn Louisville, KYn Portage, INn Parkersburg, WVn Norfolk, VAn Paulsboro, NJn Milford, CTn Saraland, ALn Orlando, FLn Jacksonville, FLn Baxley, GAn Cartersville, GAn Columbia, SCn Charlotte, NC

Wherever You Are,We AreNorth American Locations

For a complete listing of globalFurmanite locations, go towww.furmanite.com and clickon “Contact Us”.

Typical Line Stop Applications

Temporary Bypass

FLOW

FLOW

Line StopMachine

Line Stop Fitting

CompleteFitting

New Valve

Temporary Valve

Double Stop and Bypass for Valve Insertion

Utilizing two fittings, the system flow ismaintained through the bypass from oneline stop machine to the other.

Once the line is isolated, drained, and cut,the new valve is installed, the temporarybypass is disassembled, the line stopmachines are removed, and the blindflanges are installed.

FLOW

FLOW

Line StopMachine

PermanentRelocation

CompletedFitting

Double Stop and Bypass for PermanentRelocation Using Bottom-Out Fittings

Bottom-out line stop fittings offer an alter-native method to perform a line stop andbypass. Two fittings are required. Asabove, the flow is maintained through thenew line while the line stops allow for thecutting and capping of the existing line.

On completion, the line stop machines areremoved and the blind flanges areinstalled.

Line StopFitting

FLOW

Line StopMachine

CompletedFitting

BypassTaps

FLOW

FLOW

Temporary Valve

Step 1

Step 2

Step 3

Double Stop and Bypass forPermanent Relocation

In step 1, a typical pressure layout showsthe use of two hot tap fittings with valvesand two line stop fittings required for theinstallation of a new section of pipe.

Step 2 shows the line stop machines inplace. The flow is stopped in the originalline and a section of pipe is removed.

Step 3 shows relocation complete. Theoriginal line stop machines are removed,and the blind flanges are installed.

Spherical-tee line stop fitting for line terminationwith side outlet for permanent relocation.

Furmanite:Putting Safety First

At Furmanite, there is absolutelynothing more important than thesafety of our employees andcustomers. We are continuouslydeveloping, enforcing, evaluat-ing and improving upon our safe-ty policies and procedures. Weknow that safety is also veryimportant to our customers, andwe strive to be the safestprovider possible for them. As aresult, Furmanite has an impres-sive safety record in this industry- thereby adding tremendousvalue to all our technical andengineering services.

n 1,500,000 man hours(nearly three years) withouta lost-time injury.

n Significant lowering ofTRIR since 2001.

n Numerous safety awardsfrom customers.

n No OSHA-recordablelost-time injuries in2004 and 2005.

48" (1200 mm) line stop fitting with completionplug installed on crude oil pipeline.

Fittings

Furmanite manufactures split tees,shaped nozzles, and Close-Sure line stopfittings in a variety of sizes andcombinations for hot/wet tapping and linestopping. Fittings are available for size-on-size or reduced-branch applications from2" (50 mm) to 60" (1500 mm). Custom-designed fittings are available on request.Our fittings are designed and manufac-tured in accordance with ANSI and ASMEstandards. Other codes are met onrequest.

48" (1200 mm) by 36"(900 mm) three-wayline stop fitting foruse on flare line.

2" (50 mm) purge equalization fittings.

Typical Close-Sure completion flange.

16" (400 mm) spheri-cal three-way teewith Close-Sureflange. Outlet fromside or bottom.

12" (300 mm) Sure-Stop tee shown withbottom outlet preppedfor welding.

12" (300 mm) mechanical line stop fitting withblind flange.

Manufacturing

46" (1150 mm) high pressure pivoting line stophead undergoing rigorous testing to meet oper-ating parameters.

Manufacturing

8" (200 mm) customfitting for 45° anglehot tap.

IP 914 hot tap drilling machine capable of per-forming taps up to 42" (1066 mm).

Three-way tee inmanufacturing.

Split tee.

Furmanite’s IP100 tapping machinewith capabilities from 1/2" (12.50 mm)

to 4" (100 mm) and Furmanite’sIP152 tapping machine with capa-bilities from 4" (100 mm) to 12" (300mm). A complete equipment line isavailable for taps to 72" (1800 mm).

Equipment

Furmanite manufactures a complete line of hot tapping andline stopping equipment from 1/2" (12.50 mm) to 72" (1800 mm)with standard rating to 1480 psi at 100°F or 700 psi at 700°F.Furmanite’s equipment is manufactured at our facilitieslocated in Houston, Texas, and Scunthorpe, U.K. We alsomanufacture a complete line of line stopping equipment,which includes actuators, pivoting heads, sandwich-typevalves, sealing elements, cutters, pilot drills, and otherrelated items. Individual equipment specification sheets areavailable in our Product and Services catalog. Equipmentpackages to meet your specific requirements can beprepared on request.

Assembly of pipe cutting equipment on pipeline.

Cutting of pipe toallow for valveinstallation.

Valve installed underpressure. Equipmentremoval in progress.

Gate valveinstallationcomplete.

Valve Inserting

Valve inserting is a system that allows for the installation of a gate valve into a

cast iron or ductile iron water main or an underground fire protection system

without interrupting service. Sizes range from 4" (100 mm) to 20" (500 mm).

20" (500 mm) ANSI 600 flange encapsulationclamp with structural grips installed on off-shore riser containing natural gas at 1100 psi.

4" (100 mm) highpressure bolt-onmechanicalrepair clamp.Clamps can bewelded frompermanentinstallation.

Assorted split-sleeve mechanical repair clampsinspected, painted, and ready for shipment.

Furmanite’s Piping Products Divisionoffers a full line of Self Sealing RepairClamps (SSRCs) and Pinhole LeakClamps (PLCs) that allow for theemergency containment of pipingdefects. Flanged End Connectors (FECs)and Pipe End Connectors (PECs) are alsoavailable. These methods utilize amechanical means of making repairs to apipe. Sizes are available from 2" (50 mm)to 48" (1200 mm) standard, pressures to1500 psi. Larger sizes and higherpressure applications are available onrequest.

Repair Clamps

Bolt-on mechanicalhot tap tees.

A mechanical tapping tee withFurmanite hot tap machine assem-bled is lowered into the Gulf ofMexico for clampinstallation and hot tap.

Double line stop at 70' FSW toallow a section of 6" (150 mm) lineto be evacuated and raised tothe surface.

Offshore Services

24" x 12" mechanical hot-tapfitting; ANSI 600 for sub-sea application.

Furmanite has worked around the world

performing tapping and line stopping serv-

ices for platform and subsea projects.

Typical applications include taps to 24" (600

mm), pressures to 2200 psi with capabilities

to work at depth of 1000 feet. As work

requirements continue to change,

Furmanite’s engineering, manufacturing,

and service teams are working to meet

these challenges. To date, operations in the

Arabian Gulf, the North Sea, and the Gulf of

Mexico have been completed on time and

without incident.

www.furmanite.com

Preliminary Document. Specifications subject tochange. Copyright © 2006 Furmanite America, Inc. Allrights reserved. eCompliance, PSIM and PressurizedSystem Integrity Management are service marks ofFurmanite America, Inc. The Furmanite logo is aregistered trademark of Furmanite America, Inc.Maximizing Asset Uptime is a registered servicemark of Furmanite America, Inc. All other trademarks,service marks, registered trademarks, or registeredservice marks mentioned in this document are theproperty of their respective owners. Printed in USA.

Furmanite America, Inc.101 Old Underwood Road n Building F n La Porte TX 77571Phone: 800-444-5572 n Fax: 281-842-5111

Final inspection of 16"(400 mm) hot tap tee.

Furmanite’s engineeringdepartment uses the latestdesign technology to analyzeand develop solutions to meetcustomer requirements.

Inspection and documentation of dimensionsof manufactured components beforeassembly and shipment.

Furmanite has successfully implemented the ISO 9001— Quality Management

System. The scope of Furmanite’s certificate includes design and manufac-

ture of specialized hot tapping, line stopping, and leak repair equipment for

piping systems in refineries, chemical plants, public utilities, onshore and

offshore pipelines, and gas transmission and distribution systems.

Engineering

Furmanite’s in-house design and engineering department provides the

flexibility to meet your specific requirements. All orders, standard or

special, are reviewed by our engineering departments to ensure that

proper design codes, manufacturing tolerances, and safety factors are met,

under ANSI and ASME codes.

Quality Assurance