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Fisher 657 | Fisher Valve | Fisher Actuator

The Fisher 657 and 667 actuators are designed for reliable on/off or throttling operation of control valves, using a spring-opposed diaphragm structure to position the valve plug in response to pneumatic output signals. The 657 actuator is direct-acting, while the 667 actuator is reverse-acting. As an authorized distributor of Fisher in the Middle East and Southeast Asia, GUAGEMART provides high-quality 657 and 667 actuators to help customers optimize the efficiency and stability of their industrial systems.

  • Free Selection Free Online Product Selection Service

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  • Fast Shipping & Competitive pricing

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  • warranty Min. order: 1 piece & 2-Year Warranty

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Description

Fisher 657 and 667 Diaphragm Actuators Supplier

Specifications Details
Actuation Spring-return, Linear
Certifications SIL capable, ATEX, CUTR, PED
Control Type On/Off, Throttling
Operating Temperature Cryogenic, Low Temperature, Standard Temperature, High Temperature
Power Source Pneumatic, Manual
Valve Type Angle Valve, Globe Valve
Other Configurations Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.

Features

  • The integral mounting pad eliminates the traditional mounting bracket and reduces the number of parts required to mount.
  • Incorporates an integral air passage that eliminates the need for external tubing and fittings when paired with a Fisher FIELDVUE™ instrument.
  • Both 657 and 667 actuators are compatible with instruments that utilize traditional bracket-based mounting kits. The 667 can be externally tubed for instruments or accessories when required.
  • Spring rates, travel stops, and manual operators are available for nearly any control valve application.
  • A molded diaphragm travels in a deep diaphragm casing, minimizing area change throughout the travel.
  • A shallow casing on the pressure side means reduced volume on that side, thereby minimizing response time.
  • The molded diaphragm allows maximum thrust for given diaphragm size.
  • Rugged thick-walled cast iron and steel construction provides increased stability and corrosion protection.

Our Advantages

  1. Comprehensive Product Range
    As an authorized distributor of Fisher in the Middle East and Southeast Asia, GUAGEMART provides a full selection of Fisher control valves and actuators, designed to meet the demanding needs of industries like oil & gas, petrochemical, chemical, and power.

  2. Experienced Technical Support
    Our skilled engineering team offers personalized technical assistance, ensuring the right product selection and helping customers optimize system efficiency and performance.

  3. Tailored Supply Solutions
    Understanding the unique challenges of the Middle East and Southeast Asia markets, we provide flexible supply solutions and offer customized products to meet your specific project requirements, ensuring quick and efficient responses.

  4. Robust Global Supply Chain
    With a reliable global supply chain network, we ensure fast delivery and can quickly respond to customer demands, keeping projects on track and on time.

  5. Reliable After-Sales Service
    GUAGEMART offers comprehensive after-sales support, including equipment commissioning, maintenance, and technical training, ensuring your equipment runs smoothly and delivers maximum return on investment.

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