46-100 Buoyancy Cover & Back - Powerflo Solutions - … Buoyancy Products.… · · 2015-08-15for the measurement and control of level and flow. Buoyancy technology, ... • Displacer

B U O Y A N C Y P R O D U C T S

Worldwide Level and Flow Solutions SM

®

MAGNETROLB U O Y A N C Y P R O D U C T S

The Total Spectrum of Solutions

Magnetrol’s products employ many technologies

for the measurement and control of level and

flow. Buoyancy technology, with its utilization

of float and displacement principles, represents

Magnetrol’s most time-tested product group.

To this day, buoyancy technology continues to

provide optimum solutions for many of today’s

level control challenges.

T E

C H

N I C

A L

P R

O D

U C

T D

A T

A

agnetrol International, Inc.

—a world leader in level

and flow control technology—

designs, manufactures, markets

and services level and flow

instrumentation worldwide.

Magnetrol’s product groups are

based upon these technologies:

• Air Sonar

• Buoyancy

• Contact Ultrasound

• Guided Wave Radar

• Magnetostriction

• RF Capacitance

• Thermal Dispersion

• Vibration

• Visual Indicators

The industries we serve include:

• Petroleum Production

• Petroleum Refining

• Power

• Petrochemical

• Chemical

• Water & Wastewater

• Pulp & Paper

• Food & Beverage

• Pharmaceutical

M

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C O N T E N T S

Buoyancy and Level Control: Four Types

• Horizontal Float

• Vertical Float

• On-Off Displacer

• Continuous Displacer

• Buoyancy Advantages & Limitations

Buoyancy Products:A Product Summary

• Modulevel® Electronic Transmitters

• Modulevel® Pneumatic Controllers

• Magnetel® Visual Indicators

• ASME Sealed & Flanged Cage Switches

• Sealed Cage Switches

• Flanged Cage Switches

• Displacer Switches

• Top Mount Float-Type Switches

• Side Mount Float-Type Switches

• Tuffy® Horizontal Mount Switches

• Special Purpose Buoyancy Switches

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A Market-Proven Technology

he application of buoyancy principles to level

measurement and control represents one of the

oldest and simplest operating systems in the process

control industry. What varies among manufacturers of

buoyancy units is how the motion of the float is trans-

lated into a control action. In some applications,

mechanical linkages convert the float’s vertical travel

into a contact closure/opening. In approaches requir-

ing isolation of the stored fluid—as in highly-pressur-

ized containments—magnetic coupling technology

allows the liquid to be completely isolated.

The displacer method uses heavier-than-liquid dis-

placers whose vertical travel actuates a switch. The dis-

placers are connected in-line to a spring by means of a

suspension cable and are positioned to rise at a force

proportional to the displaced volume of the liquid.

Magnetic coupling to the switch allows the controlled

liquid to be isolated from the controls.

Buoyancy’s Advantages:

+ Service to 5000 psig (345 Bar); 1000° F (538° C).

+ Displacers can be calibrated without level change.

+ Surface turbulence does not impede performance.

+ For floats, calibration is not required.

+ Floats provide repeatable set points.

+ Simple to understand and use; very reliable.

+ Displacers can provide control for multiple levels.

+ Displacer units permit continuous transmission.

Buoyancy’s Limitations:

- Build-up on floats may impede performance.

- Switch accuracy is limited to +/- 0.25 inch (6mm).

- Will not work with viscous fluids or dry media.

1. Vertical Float

With only a few exceptions, most external cage units

utilize the vertical float operating principle. These con-

trols are most practical in narrow level-differential

applications, such as high and low level alarms.

Principle of Operation. A permanent magnet (1)

is linked to a switch mechanism (2). As the float (3)

rises following the liquid level, it raises the attraction

sleeve (4) into the field of the magnet, which in turn

snaps against the non-magnetic enclosing tube (5),

releasing the switch actuating arm and changing the

switch contact state. The enclosing tube provides a

static seal between the switch mechanism and the float,

eliminating the need for a flexing bellows seal, packing

gland, or other failure-prone sealing elements. When

the liquid level falls, the float pulls the attraction

sleeve down below the magnetic field. The magnet

swings out to reverse contact position causing low level

switch actuation.

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2. Horizontal Float

Magnetrol refers to its horizontal-float instruments as

Side-Mount units. These units utilize a force multiplying

linkage so that a small float can be used on low specific

gravity service. Side-Mount units also offer wide level

differential capability simply by varying the length of the

float stem. The longer the stem, the greater the differen-

tial. Side-Mount units can accommodate tandem func-

tions simply by the addition of another switch and

magnetic sleeve.

Principle of Operation. Side-Mount units employ

permanent magnetic force as the only link between the

float and the switching element. As the pivoted float

follows liquid level changes, it moves an attraction

sleeve (1) into or out of the field of a switch-actuating

magnet (2) causing switch operation. A non-magnetic

enclosing tube (3) effectively isolates the switch mecha-

nism from the controlled liquid.

3. On-Off Displacement

Displacer units offer the user a wide array of control

configurations, from the simple to the complex.

Principle of Operation. A spring is loaded with

weighted displacers which are heavier than the liquid.

Immersion of the displacers in the liquid results in

buoyancy force change, which moves the spring

upward. Since the spring moves only when the liquid

level moves on the displacer, spring movement (A) is

always a small fraction of the liquid level travel (B)

between displacers.

An attraction sleeve (1) is connected to the spring

and operates within a non-magnetic enclosing tube (2).

Spring movement causes the magnetic sleeve to attract

a pivoted magnet (3), actuating a switch mechanism

(4) located outside the non-magnetic enclosing tube.

Built-in limit stops prevent over-stroking of the spring,

under level surge conditions.

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4. Continuous Displacement

The principle of continuous displacement is the

same as off-on displacer controls except that a single,

constant cross-section displacer is employed.

Magnetrol’s Modulevel family of continuous displacer

transmitters and controllers include the digital ES

Modulevel with HART® communications, the analog EZ

Modulevel and the pneumatic Modulevel.

Principle of Operation. Liquid level change acts

upon the spring-supported displacer causing vertical

motion of a core within a linear variable differential

transformer (LVDT). The enclosing tube acts as a static

isolation barrier between the LVDT and the process

media. As the core’s vertical position changes with liq-

uid level, voltages are induced in the secondary wind-

ings of the LVDT. These signals are processed in the

electronic circuitry and used to control the current in

the 4-20 mA output current loop. Digital ES transmit-

ters add HART® communication capability in addition to

the analog 4-20 mA DC output.

Advantages (+) and Limitations (-)

1. Vertical Float :

+ Broad range of products.

+ High temperature capability.

+ Easy modification for special service,

such as multiple switch points.

- Limited pressure rating with lower

specific gravities.

- Limited to alarm applications.

- Price: lower specific gravity liquids

require big floats inside big cages.

2. Horizontal Float:

+ Reliable and economical.

+ Low specific gravity rating.

+ Fairly wide differential capability.

- Low pressure rating.

- Integral mount; unit can’t be isolated.

3. On-Off Displacement:

+ Wide level range.

+ Reliable and economical.

+ Field adjustable actuating levels.

+ Not sensitive to build-up on displacer.

- Higher complexity.

4. Continuous Displacement:

+ High-pressure/Temperature capability.

+ Stable signal in foam and turbulence.

+ Dry calibration.

+ No flexure of pressure boundary parts.

+ HART® digital communications.

- Shifting signal with specific gravity shift.

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Flanged External Cage

Modulevel Pneum

atic

Magnetel Visual Indicator

Series 3 ASME Switches

Sealed External Cage

Displacer Units

Side Mount Units

Top Mount Units

Tuffy Horizontal Mount

Page Number 8 8 9 10 11 12 13 14 15 16 17 18

Float • • • • • • • •Displacer • • • • • •Single Switch • • • • • • • •Multiple Switches • • • • • • • •Controller •Transmitter • • •

4–20 mA Output • •

Display • • HART® Communications •Turbulence Dampening • • • • • • • • •Continuous Self-Test •HTHP Models • • • • •Flanged External Cage • • • • • • •Sealed External Cage • • • •Top Mount • • • • •Side Mount • • •Remote Mount • •

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Modulevel Analog EZ

Modulevel Digital ES

he chart below summarizes the

principle features of Magnetrol’s

leading buoyancy products. A green dot

(•) indicates a standard feature; a red

triangle () indicates an optional feature.

Tuffy®, Modulevel®, and Magnetel® are

registered trademarks of Magnetrol

International, Inc.

Technology

Control Type

Key Features

Mount Type

Magnetrol’s Buoyancy Products

Special Purpose Switches*

*Includes flow switches.

Supply Voltage: 12 to 36 Vdc 120 Vac, 50/60 Hz (Analog EZ only) 240 Vac, 50/60 Hz (Analog EZ only)

Ambient Temp Range: –40° F to +160° F (–40° C to +71° C)

Process Temp Range: Steam Applications: –20° F to +500° F (–29° C to +260° C) Non-Steam Applications: –20° F to +600° F (–29° C to +315° C) with carbon steel chambers; stainless steel chambers available for lower process temperatures

Process Pressure: Up to 2500 lb class or 6170 psig @ +100° F (425 Bar @ +38° C)

Accuracy: <±1 %

Repeatability: ±0.20 %

Linearity: ±0.25 %

Temperature Effect: Max 0.031 %/° F (0.056 %/° C) from 0° F to +160° F (-18° C to +71° C)

Operator Interface: Digital ES: HART® Hand Held Communicator or Push Button and LED’s on PCB Analog EZ: Zero and span pots

Output: Digital ES: 4-20 mA (reversible) with HART®; max loop resistance 420 Ω @ 24 Vdc Analog EZ: 4-20 mA (reversible); max loop resistance 480 Ω @ 24 Vdc

Specific Gravity: 0.11 to 2.20 SG

Materials of Construction: Chambers: carbon steel or 316/316L stainless steel Wetted Components: 304/304L or 316/316L and Inconel® (spring)

Description: The electronic Modulevel level transmitter is available in twoversions: the HART® compatible Digital ES and the Analog EZ. Both are advanced, intrinsically-safe, two-wire instruments that convert liquid level changes into a stable 4-20 mA output signal.

Features of ES and EZ: • Intrinsically-safe circuitry is housed in an explosion-proof, flame- proof, NEMA 4X/7/9 cast iron housing for ultimate protection.

• Heads rotate 360° for ease of installation and positioning. • An isolated junction box is standard with all units.

Features of Digital ES: • Continuous self-diagnostics with selectable output fault signal provide ultimate confidence in instrument performance.

• HART® output allows remote calibration and communication.• Local calibration capability is standard without the use of a

HART® hand-held communicator (Model 275).• One-point field calibration allows quick start-up.

Model Selection: Refer to Magnetrol Sales Bulletin 48-105 for model numbers, options and complete specification information.

S P E C I F I C A T I O N S

MODULEVEL Electronic TransmitterAdvanced Level Control in Digital or Analog Versions.

®

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Description: The pneumatic Modulevel is a highly reliable liquid level controller using continuous displacement technology. The output signals are in direct proportion to changes in liquid level. The pneumatic Modulevel uses Magnetrol’s proven magnetic coupling design for optimum performance at extreme temperature and pressure.

Features: • Range spring design provides stable output signal even on turbulent level, a feature which reduces valve wear.

• Head rotates 360° for ease of installation and positioning.• NEMA 3R controller head is removable without depressurizing

the process, a feature which reduces downtime and costs.• Instrument shop calibration allows quick start-up or change out.• Visual indicator is actuated by magnetic coupling which allows

visual level indication even upon loss of air supply.• Turndown, midpoint change, and specific gravity correction are all

adjusted by dedicated calibrators making start-up quick and easy.


Supply Pressure: Instrument quality air (clean and dry) Regulator set to 5 psig (0.3 Bar) above maximum output Magnetrol Supplied Regulator: 250 psig (17 Bar) max. to regulator Customer Supplied Regulator: 100 psig (7 Bar) max. to regulator

Air Consumption: 3 SCFH @ 9 psig output 6 SCFH @ 15 psig output

Process Temp Range: –20° F to +700° F (–29° C to +371° C) with carbon steel chambers (stainless steel chambers are available for lower process temperatures)

Process Pressure: Up to 4265 psig @ +100° F (294 Bar @ +38° C)

Accuracy: <±2 %

Repeatability: ±0.5 %

Linearity: ±1.0 %

Output: Proportional, proportional plus integral, and transmitter: 3-15 psig or 6-30 psig (direct or reverse acting) Differential Gap: 0-20 psig or 0-35 psig (direct or reverse acting)


Materials of Construction: Chambers: carbon steel or 316/316L stainless steel Wetted Components: 304/304L or 316/316L and Inconel® (spring)


MODULEVEL Pneumatic ControllerHigh Reliability in Temperature and Pressure Extremes.

®

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Description: Magnetel is a magnetically-coupled indicator that isolates the process in a sealed piping column. A single, high-strength magnet is centered inside the float at the set point. The float rises and falls within the non-magnetic piping column as the level changes. A visual indicator totally isolated from the process liquid is strapped to the column. With rising level, the indicator flags rotate and change colors and provide high visibility level indication. The visual indicator will always signal true level with-out field calibration.

Features: • Available with field-adjustable switches and transmitters• Interface indication• Ideal level indicator for hazardous liquids• Wide range of mounting configurations and styles• Certification options: ASME B31.1 and ASME B31.3 • Safe operation and functional flexibility


Process Temp Range: –50° F to +750° F (–46° C to +399° C)

Process Pressure: Vacuum to 600 lb. class or 1440 psig @ 100° F (99 Bar @ 38° C)


Display: Rotatable up to 360°

Transmitter Option: A resistance chain, with multiple reed switches, is sealed in a 316 SS tube and strapped to the piping column. Rising level causes the magnetic coupling to close each successive reed switch, producing a voltage change proportional to the level height. The transmitter converts this change into a two-wire, loop powered 4-20 mA DC signal.

Optional Transmitter Data: –40° F to +500° F (–40° C to +260° C) temperature range

Alarm Switch Option: As level passes the switch, the magnetic coupling causes the contacts to change state. The SPDT contacts will not reset until the level passes in the opposite direction. The totally isolated, magnetically coupled alarm switch can be field mounted at the desired set point without interrupting the process. The switch is bi-stable in NO or NC position.

Optional Alarm Switch Data: Standard dry contact: –20° F to +390° F (–29° C to +199° C) temperature rangeHi-temp dry contact: –20° F to +750° F (–29° C to +399° C) temperature range Reed switch: –20° F to +248° F (–29° C to +120° C) temperature range


MAGNETEL Visual IndicatorFeaturing a Highly Reliable Magnetic Indicator.

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Description: Magnetrol Series 3 float/displacer-actuated level switches provide ASME B31.1 construction (for boiler and power plant use) and ASME B31.3 construction (for refineries and petrochemical use).Series 3 units are constructed, tested and certified to ASME standards.

Measurement Principle: Series 3 switches utilize vertical-float/displacer switching action.

Features: • 14" (356mm) side/side process connections are standard• Choice of sealed or flanged chamber design• Process temperatures to +750° F (+399° C)• Agency approvals include FM, CSA, CENELEC, SAA• Wide choice of switch styles• Single or multiple switches for single or staged applications• Special float materials and materials of construction available• 1", 1.5", or 2" tank connections available in either NPT, socket

weld, flanged-side/side or flanged-side/bottom construction

Model Selection: For model numbers, options and specification information on ASME B31.1 refer to Magnetrol Sales Bulletin 46-127.For ASME B31.3 refer to Magnetrol Sales Bulletin 46-123.

Process Temp Range: Up to +750° F (+399° C)

Service Pressure: For ASME 31.1: Up to 1410 psig (97.1 Bar) For ASME 31.3: Up to 1480 psig (102 Bar)

Specific Gravity: As low as 0.41 SG for ASME 31.1; as low as 0.33 SG for ASME 31.3

Optional Connections: Weld neck, RTJ, and DIN flanges

Chamber Material: Standard: carbon steel. Options in some models include 304/304L SS,316/316L SS, Hastelloy® C, Monel®, Carpenter 20 and Duplex SS

Welding Option: Stress relieving of chamber welds available for flanged cage models (To meet NACE MR-01-75 requirements)

Actuating Levels: Special switch points and/or differentials; Tandem floats—where the switch actuating levels are 8 inches (203mm) or more apart

Interface Calibration: Consult the factory for all interface calibrations

Switch Enclosures: • NEMA 4X/7/9 aluminum enclosures meet Class I, Div. 1, Groups C & Dhazardous area requirements

• Class I, Div. 1, Group B enclosures also available

Switch Mechanisms: Standard mercury, high-temperature mercury, dry contact, hermetically sealed and pneumatic


SERIES 3 Liquid Level Switches ASME B31.1 and B31.3 Conformance-Certif ied Switches.

Series 3 Flanged Cage Design

Series 3 Sealed Cage Design

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Description: Magnetrol Series 75 liquid level switches are designed and con-structed to provide reliable service. An industry standard in petroleum refineries and chemical plants, thousands of these switches are in daily service worldwide.

Measurement Principle: Vertical float-actuated switching action.

Features: • Carbon steel or stainless steel welded float chamber• Stainless steel float and trim• Choice of switch styles and switch mechanism enclosures• Single or multiple switch configurations• Field-adjustable differentials


Service Pressure: Up to 2000 psig (138 Bar)


Specific Gravity: As low as 0.35 SG

Chamber Material: Standard: carbon steel. Options include 304/304L SS and 316/316L SS

Float Material: 316/316L SS

Tank Connections: 1" , 1.5" , or 2" tank connections available in either NPT, socket weld, flanged-side/side or flanged-side/bottom construction




Options: Interface calibration, high temperature modifications, customized installation dimensions, special finishes, special actuation levels


SEALED EXTERNAL CAGE Level SwitchSeries 75 Switches Rank as Industry Standards.

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Description: A completely self-contained level switch designed for external mounting to a vessel with threaded, welded or flanged connec-tions. Market proven in hundreds of industrial applications, theseswitches have become standard in the fields of petroleum refining, petrochemicals and power generation.


Features: • Carbon steel float chamber• High-temperature and high-pressure operation• Stainless steel float and trim• Single or multiple switch configurations• Easy float chamber inspection• Field-adjustable differentials

Model Selection: Refer to Magnetrol Sales Bulletin 46-116 for model numbers, options, and complete specification information.

Service Pressure: Up to 900 psig (62 Bar)



Chamber Material: Carbon steel

Float Material: 316/316L SS

Tank Connections: 1", 1.5", or 2" tank connections available in either NPT, socket weld, flanged-side/side or flanged-side/bottom construction




Options: Interface calibration, high temperature modifications, customized installation dimensions, special finishes, special actuation levels


FLANGED EXTERNAL CAGE Level SwitchA Completely Self-Contained Liquid Level Switch.

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Description: Magnetrol’s displacement type level switches offer the industrial user a wide choice of alarm and control configurations. These switches are well-suited for simple or complex applications, such as foaming or surging liquids or agitated fluids.

Measurement Principle: Displacer-actuated switching action

Features: • Narrow or wide level ranges achieved through multiple switches • Displacers adjustable at any point along the suspension cable• Anti-surge design eliminates possibility of switch shortcycling• Flanged or threaded mounting available• Field-adjustable set point and switch differential• Optional Proof-er® Ground Check checks the operation of the

control without having to raise the tank level• Field-adjustable differentials

Model Selection: Refer to Magnetrol Sales Bulletin 45-115 for model numbers, options and compete specification information.

Pressure/Temp Ratings: Threaded Models: 800 psig @ +100° F (55 Bar @ +38° C)250 psig @ +400° F (17 Bar @ +204° C)

Flanged Models: Limited to the pressure rating of the selected flange or displacer. Cast iron flanges are flat face type conforming to ANSI specifications

Low Pressure Proof-er®: 25 psig @ +200° F (1.7 Bar @ +93° C)

Med. Pressure Proof-er®: 125 psig @ +300° F (8.6 Bar @ +149° C)

Displacer Materials: Porcelain, 316/316L stainless steel, Karbate® and lead

Suspension Cable: The displacer’s suspension cable is field adjustable at any point along the length of the cable. A 10-foot (3 meters) 316/316L stainless steel cable is standard. Monel® and Hastelloy® materials are also available.

Switch Enclosures: • NEMA 1 carbon steel for pneumatics• NEMA 4X/7/9 aluminum enclosures meet Class I, Div. 1, Groups C & D

hazardous area requirements• Class I, Div. 1, Group B enclosures also available


Switch Configurations: • Single switch, wide differential, pump or valve control• Single switch, narrow differential, level alarm application• Dual switch, wide and narrow differential• Triple-switch, wide and narrow differential


DISPLACER TYPE Level SwitchesNarrow or Wide Range; for Simple or Complex Applications.

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Description: T20 units utilize a single switch mechanism and float.T21 tandem units combine the functions of two separate narrow differential level controls in a single, compact, easy to install instrument. Two individual switch mechanisms are employed to provide widely spaced actuating levels. T21 switches are ideally used in applications requiring two separate switching points, suchas high and high-high level alarm operation.


Features: • Designed for virtually any type of open or closed tank or vessel• Ruggedly reliable, market-tested single and tandem units• Wide range of switches• Actuating depths of up to 48" (1219mm)• Simple operation, maintenance-free service• Optional flange process connections available


Pressure/Temp Ratings: 3.00" x 5.00" (76mm x 127mm) float size: 500 psig @ +100° F (35 Bar @ +38° C)At maximum temperature: 300 psig @ +750° F (21 Bar @ +399° C)

4.00" diameter (102mm) float size: 600 psig @ +100° F (41 Bar @ +38° C) At maximum temperature: 400 psig @ +750° F (28 Bar @ +399° C)

4.50" diameter (114mm) float size: 500 psig @ +100° F (35 Bar @ +38° C) At maximum temperature: 340 psig @ +750° F (23 Bar @ +399° C)

Float, Stem and Sleeve: 300 Series SS, 400 Series SS, or 316/316L SS

Switch Enclosures: • NEMA 4X/7/9 aluminum enclosures meet Class I, Div. 1, Groups C & D hazardous area requirements


Switch Mechanisms: Standard mercury, high-temperature mercury, dry contact, hermetically sealed and pneumatic (T20 model only)

Switch Configurations: Single and tandem

Optional Guide Cage: Model T21 tandem float switches are available with an optional guide cage to help stabilize the floats under turbulent conditions.


TOP MOUNT Float-Type SwitchesSimple and Reliable Switches for Top-Mount Applications.

Description: Magnetrol side-mount controls mount horizontally to any tank or vessel through a threaded or flanged connection.

Measurement Principle: Horizontal float-actuated switching action.

Standard Models: Equipped with a single switch mechanism for high or low level alarm or control applications

Tandem Models: Equipped with two switch mechanisms for two level stage applications—providing the operating functions of two instruments, such as high and low level alarm

Features: • Threaded or flanged mounting

• Choice of float size• Simple operation

with high reliability • Field adjustable

level differential



Specific Gravity Rating: As low as 0.50 SG

Body Materials: Cast iron, carbon steel, 304/304L and 316/316L stainless steel

Float, Stem and Sleeve: 300 Series SS, 400 Series SS, or 316/316L SS

Float Sizes: 2.50" (64mm)

2.50" x 4.00" (64mm x 102mm)

3.00" (76mm)

3.50" (89mm)

3.00" x 5.00" (76mm x 127mm)

Switch Enclosures: • NEMA 1 carbon steel for pneumatics• NEMA 4X/7/9 aluminum enclosures meet Class I, Div. 1,

Groups C & D hazardous area requirements• Class I, Div. 1, Group B enclosures also available



SIDE MOUNT Float-Type SwitchesSingle or Tandem Switch Mechanisms.

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Description: A compact level switch for horizontal mounting in a tank or vessel through threaded or flanged pipe connections.

Measurement Principle: Horizontal float-actuated switching action

Features: • Single electric or pneumatic switch for high or low level alarm or control functions• Compact, horizontal mounting• 316/316L stainless steel wetside components• Explosion-proof enclosure• An economical switch with simple operation and high reliability

Model Selection: Refer to Magnetrol Sales Bulletin 44-118 for model numbers, options, and complete specification information.

Process Temp Range: –40° F to +400° F (–40° C to +204° C)

Ambient Temperature: Maximum +100° F (+38° C) with maximum process temperature


Switch Action: Electric or pneumatic

Electric Switches: SPDT, DPDT, or hermetically sealed SPDT; SPDT switches include an integrated terminal block

Pneumatic Switches: Three-port/two-position non-bleed valve

Construction Materials: All 316./316L SS wetted components including NACE and ASME 31.3 construction

Housing Options: Carbon steel, 3/4" NPT 316/316L stainless steel, 3/4" NPT (standard for pneumatic models)Carbon steel, M20 x 1.5, CENELEC only

Optional Cage: A carbon steel or stainless steel cage is available for external mounting in applications which do not allow a TUFFY switch to be mounted directly into the pressure vessel.NACE or ASME B31.3 cages are available.

Cage Rating: To 1500 psig @ +400° F (103 Bar @ +204° C)

Cage (Optional): Carbon steel or stainless steel


TUFFY® Liquid Level SwitchesA Compact,Economical Float-Type Switch

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Description: Economical B73 float operated switches are designed for external cage mounting and are available with either carbon steel or SS steel float cages.

Process Temp Range: 300 psig @ +100° F (21 Bar @ +38° C) 275 psig @ +450° F (20 Bar @ +232° C)

Specific Gravity: 0.59 and above

Model Selection: Refer to Magnetrol Sales Bulletin 46-119 for complete information.

SPECIAL PURPOSE Liquid Level Switches

B73 EXTERNAL CAGE SWITCH

Description: B74 displacer operated switches utilize a single switch mechanism for level alarm or control functions. These units are design to provide high pressure capability with a low specific gravity rating.

Process Temp Range: To +300° F (+149° C)

Pressure Rating: To 1480 psig (102 Bar)



B74 EXTERNAL SEALED CAGE SWITCH

Description: B40 float-actuated liquid level switches are designed and constructed for high-pressure, high-temperature service conditions.




B40 LIQUID LEVEL SWITCH

Description: C74 Switches are displacer-actuated utilizing a single switch mechanism for level alarm or control functions.





C74 EXTERNAL FLANGED CAGE SWITCH

Description: Series 24 switches are single switch mechanism units available for level alarm or shut down applications. The B24 is designed for service in steam boilers to 250 lbs. working steam pressure, while the C24 is designed for general industrial use.




B24 & C24 LIQUID LEVEL SWITCHES

Description: B25, C25 and Water Column liquid level switches offer versatility and reliable operation in a variety of applications. These switches are avail-able with up to three switch mechanisms for level alarm, control and shutdown functions.


Working Steam Pressure: To 600 pounds


B25, C25 and WATER COLUMN SWITCHES

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Description: F10 (vane-actuated flow switches) and F50 (disc-type flow switches) are designed for horizontal pipe flow-sensing applications.

Pressure/Temp Range: F10: To 1000 psig @ +450° F (69 Bar @ +232° C)F50: To 1150 psig @ +100° F (79 Bar @ +38° C)

Pipe Size: F10: For 2" diameter flow lines and largerF50: For 0.75", 1", 1.5", and 2" diameter flow lines

Model Selection: F10: Refer to Magnetrol Sales Bulletin 47-116 for complete information.F50: Refer to Magnetrol Sales Bulletin 47-115 for complete information.

F10 and F50 FLOW SWITCHES

HIGH-PRESSURE LIQUID LEVEL SWITCHES

Description: High-pressure liquid level switches are displacer-actuated and designed for high service pressures. They utilize the Magnetrol magnetic principle to assure dependable performance.




Worldwide Level and Flow Solutions SM

CORPORATE HEADQUARTERS:5300 Belmont Road • Downers Grove, Illinois 60515-4499 USA

Phone: 630-969-4000 • Fax: 630-969-9489e-mail: [email protected] • website: http//www.magnetrol.com

BELGIUM: Heikensstraat 6 • 9240 Zele, BelgiumPhone: 052 45.11.11 • Fax: 052 45.09.93

CANADA: 6291 Dorman Road • Mississauga, Ontario L4V-1H2

BRAZIL: Magnetrol-Aselco • Av. Luis Stamatis, 620-Jacana • Sao Paulo CEP 02260-001, Brazil

DEUTSCHLAND: Schloßstraße 76, D-51429 Bergisch-Gladbach (Bensberg)

FRANCE: 11, Rue Albert Einstein • Espace Descartes F-77420 Champs-sur-Marne

INDIA (Liaison Office): B4/115 Safdurjung Enclave • New Delhi 110 029

ITALIA: Via Arese, 12 - 20159 Milano

UNITED KINGDOM: Regent Business Centre, Jubilee Road • Burgess Hill, West Sussex RH15 9TL U. K.

©1998 Magnetrol International, Inc. All rights reserved. Printed in the USA.

Bulletin: 46-100.0 • Effective: November 1998

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46-100 Buoyancy Cover & Back - Powerflo Solutions - … Buoyancy Products.… · · 2015-08-15for the measurement and control of level and flow. Buoyancy technology, ... • Displacer