Fisher™ 1B Pump Governor Actuator
The Fisher 1B pump governor actuator is used to maintain a constant discharge pressure on steam-driven turbine or reciprocating pumps and for pressure reducing or pressure relief applications. Typical pump governor applications include fire pumps, boiler feedwater pumps, and industrial or refining pumps where the discharge medium is oil, steam, air, or other non-corrosive fluid. The 1BR type pump governor actuator is combined with a push-down-to-open valve for service as a relief governor.
The Fisher™ 1B Pump Governor Actuator, developed by Emerson, is a precision-built pneumatic actuator designed to provide accurate speed and pressure control for reciprocating and centrifugal pumps. It is engineered to automatically regulate the pump’s discharge pressure or flow rate by adjusting the governor valve position in response to system demand.
The 1B actuator utilizes a spring-and-diaphragm design, delivering fast, stable, and precise throttling control even under fluctuating process conditions. Its compact and rugged construction ensures dependable performance and long service life in industrial and oilfield environments, where reliability and efficiency are essential.
The Fisher 1B Pump Governor Actuator can be combined with a pressure or flow controller to maintain constant discharge pressure or flow. It is widely used in pipeline booster stations, refineries, and process plants, offering simple installation, low maintenance, and consistent operational performance.
Engineered to meet Emerson’s high standards of durability and precision, the Fisher 1B ensures safe, smooth, and efficient pump control for critical process applications.
Technical Specification of Fisher™ 1B Pump Governor Actuator
- Actuation
- Manual
- Certifications
- CUTR
- Control Type
- On/Off
- Operating Temperature
- Standard Temperature
- Power Source
- Manual
- Process Control
- Positioning, Positioning
- Valve Type
- Globe Valve
- Other Configurations
- Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.
Feature of Fisher™ 1B Pump Governor Actuator
- Brass and steel construction combats wear for long service life.
- Few moving parts and easy access reduce maintenance and downtime.
- Readily accessible spring adjustment without removing any parts.
- Leak-free piston cups available to 66°C (150°F).
- Direct-operated configuration provides fast speed of response.