DIAPHRAGM ACTUATOR

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Selecting the correct actuator is crucial to ensure the prolonged and effective functioning of your valves. When choosing an actuator, consider factors such as the type and size of the valve, the level of control required, and the operating conditions.

Types of Spring & Diaphragm Actuators

There are mainly two types of these actuators: the Direct Acting Spring & Diaphragm Actuator and the Reverse Acting Spring & Diaphragm Actuator. In direct-acting actuators, the actuator stem extends when air pressure is applied, while in reverse-acting actuators, the air pressure compresses the spring and the actuator stem retracts.

Key Tips for Maintaining Your Actuator

Regular maintenance of your spring & diaphragm actuator can help ensure its longevity and avoid costly repairs. Keep an eye out for signs of wear and tear such as leaks and reduced efficiency. Also, remember to regularly check and adjust the spring tension to ensure optimal performance.

In conclusion, understanding the ins and outs of the Spring & Diaphragm Actuator can be a significant benefit for anyone involved in industries where fluid control is a priority. With their versatility, reliability, and wide range of applications, these small components are truly heavyweights in the world of mechanical engineering and process control.

Category:

SPECIFICATIONS :

Spring action

  • DA (Direct Acting – Springs to open)
  • RA (Reverse Acting – Springs to close)

Temperature

  • -20 °C to 80 °C (optional -40 °C, -55 °C)

Operation pressure

  • 4.0 kgf/cm² to 5.0 kgf/cm²

Stroke range

  • 20mm to 130mm

Optional manual override

  • Top handwheel (250, 290, 370)
  • Side handwheel (480, 550)

Certificates

  • SIL, TRCU, ATEX

Features:

  • Field-reversible, multi-spring diaphragm actuator allows changing of fail-safe action.
  • Multi-spring actuator offers uniform application of actuator forces to control valve as well as reduces height and weight of valve.
  • Actuator, together with positioner, can be rotated a complete 360¬ to allow for ease of local operation regardless of valve orientation.
  • Rolling diaphragm offers increased precision and reduced hysteresis compared to stretching diaphragms.

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