Product Description

A4 Pneumatic Diaphragm Control Valve

The A4 Pneumatic Diaphragm Control Valve is a robust and reliable solution for automated flow regulation in a wide range of industrial process control systems. Featuring a durable cast metal body with flanged connections, this valve ensures secure installation and long-term service. The assembly is driven by a powerful multi-spring pneumatic diaphragm actuator, which provides precise and responsive modulation of the valve position. Its spring-return mechanism guarantees a fail-safe position (fail-open or fail-close) upon loss of air pressure, enhancing system safety. Ideal for controlling the flow of liquids, gases, and steam in industries such as chemical processing, water treatment, and power generation, the A4 series offers excellent performance and control accuracy.

Technical Specifications:

  • Body Material: Cast Steel (WCB), Stainless Steel (CF8, CF8M), Cast Iron (FC250)

  • Actuator Type: Pneumatic Diaphragm, Spring-Return (Fail-Close or Fail-Open)

  • Connection Type: Flanged End (e.g., ANSI B16.5 Class 150/300, DIN PN16/40)

  • Pressure Class: ANSI 150LB – 600LB / PN16 – PN100

  • Nominal Size Range: DN20 – DN300 (3/4″ – 12″)

  • Flow Characteristic: Equal Percentage, Linear, or Quick Opening

  • Air Supply Pressure: 0.14 – 0.7 MPa (20 – 100 psi)

A4 Pneumatic Diaphragm Control Valve Description

A4 Pneumatic Diaphragm Control Valve

Discover the A4 Pneumatic Diaphragm Control Valve, an industrial-grade solution for precise flow regulation. Features a robust flanged body and a reliable spring-return actuator for automated process control.

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