1 / 2Manufacturer catalogue photograph of the flanged pneumatic piston valve.
Flanged Pneumatic Piston Valve
Flanged process valve with spring return
This flanged valve uses a pneumatically driven piston for linear on/off action. For replacement, match the mating flange drilling, class and face-to-face dimension as well as the pipe diameter. The family described by the manufacturer returns to the closed position by spring force when air is removed.
Final selection requires the complete product code and the service conditions.
UNDERSTAND THE APPLICATION
A solution for your application.
Application areas
Automatic shutoff in water, air or steam lines after service verification · Cyclic on/off operation in machinery and process units
Selection considerations
Specify process differential pressure separately from available control air pressure.
Specify the nominal line size and connection standard, together with the need for isolation, regulation or automation. Two valves of the same nominal size may differ in materials or connection dimensions.
MANUFACTURER DATA
Technical specifications
| Connection | Flanged |
| Body | 316 stainless steel |
| Piston | 304 stainless steel |
| Published family temperature limit | Up to 220 °C; confirm for the exact configuration. |
Evaluate pressure and temperature together. Verify the ratings that apply to the selected body, sealing materials and end connections in the model-specific technical document.
DOWNLOADABLE RESOURCES
Technical documents
Open manufacturer PDFs directly from our website and save them to your device. Check the model and document revision.
Frequently asked questions
How do I check that the flanged valve will fit?+
Provide the existing face-to-face length, mating flange standard, DN and pressure class. Measure overhead and lateral clearance for the actuator as well.
Are pilot air pressure and process pressure the same?+
No. Pilot air drives the actuator, while process pressure is the pressure of fluid in the valve body. Report both separately, along with the differential pressure on closure.
What should I verify before specifying Truevalve Flanged Pneumatic Piston Valve?+
Evaluate pressure and temperature together. Verify the ratings that apply to the selected body, sealing materials and end connections in the model-specific technical document.
What should I include in my quotation request?+
Line size and connection standard; Fluid, operating pressure and temperature; Isolation or control duty and actuation method. For replacement equipment, also provide the nameplate and connection dimensions.
Where can I check the technical drawing and dimensions?+
Open the manufacturer PDF in the Technical Documents section. Match the relevant entry to the product type, nominal size and variant code. Not every option in a family catalogue belongs to the same product.
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