Fisher Control Type 657-4 Size 70 Actuator (8203197)

Fisher Control Type 657-4 Actuator (8203197)

The Fisher Control Type 657-4 Size 70 actuator is a well-regarded device in the field of control valves, typically used for throttling and regulating flow in various industrial applications. Here’s some general information about this actuator:

Features:

• Design: The Type 657-4 is a spring-diaphragm actuator that provides reliable control of valve position.
• Size: Size 70 indicates a certain range of torque output and stroke length, suitable for various valve sizes.
• Actuation: It operates on pneumatic signals, allowing for precise control of the connected valve.
• Construction: Typically constructed from durable materials to withstand harsh environments, including corrosive fluids or gases.

Applications:

• Process Industries: Widely used in oil and gas, chemical processing, power generation, and water treatment.
• Control Functions: Ideal for applications requiring precise flow control, such as mixing, splitting, or pressure control.

Maintenance:

• Regular maintenance is essential for optimal performance, including checking the diaphragm for wear and ensuring the actuator is free from obstructions.

Installation:

• Proper installation is crucial for ensuring the actuator functions correctly. It’s typically mounted directly to the valve and connected to a control system.

If you need specific technical details, such as pressure ratings, torque output, or installation guidelines, I recommend consulting the manufacturer’s documentation or the Fisher website.