Three Way Diaphragm Valve, BS 5156, ASTM A351 CF8, PN10, RF

Product Name: Three Way Diaphragm Valve
Design Standard: BS 5156
Body Material: ASTM A351 CF8, Stainless Steel
Lining & Diaphragm Material: Rubber
Size: Customized
Pressure: PN10, Class 150 LB
End Connection: RF Flanged
Operation: Manual
Temperature Range: -29°C to 80°C

Three-Way (3-Way) Diaphragm Valves are specifically designed to regulate non-corrosive or mildly to moderately corrosive media. The valve body may be unlined or lined with various rubber materials, allowing adaptation to different operating temperatures and fluid types. With a wide range of lining options, these valves offer strong corrosion resistance and compatibility with diverse media. Structurally, the valve body and bonnet are separated by an intermediate diaphragm, effectively isolating the bonnet and stem components from contact with the process fluid, preventing erosion and contamination. As a specialized type of globe valve, the three-way diaphragm valve provides reliable flow control and durability in demanding applications.

Standards Compliance and Design Features

» Size Ranges:1/2-14 Inches
» Pressure Ratings: ANSI Class 125 LB, Class 150 LB, PN6, PN10, PN16
» Standards Compliance: 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