Pneumatic Diaphragm Valves, BS 5156, GGG40, DN50, EPDM Lined

Product Name: Pneumatic Diaphragm Valve, EPDM Lined
Design Standard: BS 5156
Body Material: Ductile Iron GGG40
Size: DN50, 2 Inch
Pressure: PN10, Class 150 LB
End Connection: RF Flanged
Operation: Pneumatic Actuator
Temperature Range: -29°C to 80°C

The diaphragm valve is specifically designed for handling non-corrosive and mildly to moderately corrosive media. Its valve body may be unlined or lined with a range of rubber materials to suit various fluid types and operating temperatures. These lining options offer excellent corrosion resistance, making the valve adaptable to different process conditions. A key feature is the separation of the valve body and bonnet by an intermediate diaphragm, which protects the valve stem and bonnet components from contact with the process media. Structurally, it is a specialized type of globe valve.

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
» Material: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, ASTM A216 WCB, A351 CF8, CF8M
» 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

Main Material