Pneumatic Diaphragm Control Valve, CS, DI, SS, 3/4-16 Inches

Product Name: Pneumatic Diaphragm Control Valve with Positioner
Design Standard: BS 5156, MSS SP-88
Body Material: Cast Iron, Ductile Iron, ASTM A216 WCB, A351 CF8, CF8M
Lining & Diaphragm Material: Natural Rubber, EPDM, Hard Rubber
Size: 3/4-16 Inch (DN20-DN400)
Pressure: PN10, PN16, Class 125 LB, Class 150 LB
End Connection: RF Flanged
Operation: Pneumatic Actuator with Positioner
Temperature Range: -29°C to 80°C

The diaphragm valve is a specialized type of globe valve designed for controlling non-corrosive or mildly corrosive media. Its valve body can be either unlined or lined with various rubber materials to suit different operating temperatures and fluid conditions. The wide selection of lining options offers excellent chemical resistance across a range of media. An intermediate diaphragm separates the valve body from the bonnet, effectively isolating the valve stem and bonnet components from the process fluid, preventing corrosion and extending service life.

Standards Compliance and Design Features

» Size: 3/4-16 Inch (DN20-DN400)
» Pressure Rating: ANSI Class 125 LB, Class 150 LB, PN6, PN10, PN16
» All Standards: MSS SP-88, BS 5156, ASME B16.34, DIN 3202, ASME B16.1, BS EN 558, ASME B16.5 CL150, EN 1092, EN 12226, ISO 5208, API 598, BS 4504 or equivalents
» Materials: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, or Other Specials
» Optional Lining: Natural Rubber, Butyl, EDPM, Hard Rubber and etc.
» Ends Connections: Flanged RF or FF, Screwed
» Optional Locking Device Position indicator
» Optional Direct Mounting to ISO 5211
» Regular Bore
» Handwheel, Electric or Pneumatic operated

Structural Diagram

Main Material