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					Actuators
1B and 1BR

Type 1B and 1BR Constant-Pressure Pump Governor Actuators

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W2232-1

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D Maintains a Constant Discharge Pressure on Steam-Driven Turbines or Reciprocating Pumps such as Fire Pumps, Boiler Feedwater Pumps, and Industrial or Refining Pumps D Pressure-Reducing (Type 1B) or Relief (Type 1BR) Applications, Actuator, Pressure to 48.3 Bar or 700 Psig D Type 1B Actuator is used with easy-eR Globe (Straight-Pattern) Valves such as Design ED and ET. Type 1BR Actuator is used with easy-e Reverse-Acting (Push-Down-to-Open) Valves such as Design EDR and ETR.

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General Specifications . . . . 7-8 Materials . . . . . . . . . . . . . . . . 7-8

Additional Specifications . . 7-8 Dimensions and Weights . . 7-9

Actuators
1B and 1BR
General Specifications
SELECTION Control pressure closes standard globe valves; spring opens: Type 1B Control pressure opens push-down-to-open valve; spring closes: Type 1BR MAXIMUM CYLINDER PRESSURE Bar Psig Standard 48.3 48 3 700 Leak-free service 66 150 MAXIMUM CYLINDER OPERATING TEMPERATURES _C 130 _F 265

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Materials
Component Cylinder cap and yoke Piston Cylinders Piston cup Cast iron Chrome-plated brass Brass Partial nitrile or 100% nitrile for leak-free service Material

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W2254

Additional Specifications
EFFECTIVE PISTON AREA cm2 Inches2 SPRING RANGES Bar 6.6 to 34.5 in five ranges Psig 95 to 500 in five ranges mm TRAVEL Inches TRAVEL STOPS (TYPE 1BR ONLY) Available for 6 and 11.1 millimeter (1/4 and 7/16 inch) travel

45

7.07 7 07

19.1 19 1

3/4

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Actuators
1B and 1BR
Dimensions and Weights
C

1 2
E

3 4
12A7093-B A2398-2 / IL

E C 1/2 to 1-1/2 Inch Valves mm 159 6.25 548 Inches 21-9/16 23-1/2 20 597 9.1 2- to 4-Inch Valves

WEIGHT Valves with 9.5 mm Stem Valves with 12.7 mm Stem 20.4 Pounds 45

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Kilograms

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www.fisher.com/regulators www.contekvalves.com www.baumann.com www.fisher.com

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Actuators
1B and 1BR

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posted:11/15/2009
language:English
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