Thread Weir Diaphragm Valve

The KOSEN Thread Weir Diaphragm Valves is specially designed to control the general corrosive medium, and can be used for opening and closing and throttling of various pipelines or equipment. The lining valve is suitable for urban construction, chemical industry, metallurgy, petroleum, pharmaceuticals, food, beverages, and environmental protection.

Technical Specification
Normal Size Range: 1/2"-2"
Normal Pressure Rating: PN10~PN16, CLASS150
Operation: Handwheel, Pneumatic, Electric
Temperature Range: -29~150 Degree C

Standards compliance
Design & Manufacture: BS 5156-85, MSS SP-88, GB 12239-89
Face to Face Dimension: BS 5156-85, ANSI B16.10, GB 12221-85, DIN 3202
Flanged Dimension: BS 5156-85, ANSI B16.5, EN 1092, GB/T 17421-98
Inspect & Test: BS 5156, MSS SP-82, GB/T 13927

Component Materials
Body / Bonnet: Cast Iron, Ductile Iron, Cast Steel, Stainless Steel & Duplex
Lining (Optional): 
Fluorine -- PTFE, FEP, PCTFE, PVDF, TFE, PFA, RPP, PO
Rubber  -- NR, BR, IIR, CR, EPDM, CSPE, FKM, SI
Diaphragm: Rubber 
Compressor / Disc: Cast Iron, Ductile Iron, Cast Steel, Stainless Steel
Stem: Carbon Steel & Stainless Steel
Handwheel: Iron & Steel