PTFE Lined Diaphragm Valve

The KOSEN PTFE Lined Diaphragm Valves is a special type of truncation valve. Its opening and closing is a diaphragm made of soft material. The inner cavity of the valve body is separated from the inner cavity of the valve cover and the driving part. The valve is characterized by the diaphragm separating the inner cavity of the lower body from the inner cavity of the upper valve cover, so that the valve rod and valve disc above the diaphragm are not corroded by the medium, and the packing seal structure is omitted and the medium leakage will not be produced.

Technical Specification
Normal Size Range: 1/2"-16"
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