Specification :

DES.: A. Specification: DN50-DN600

B. Characteristics:

Pin-less; the valve stem has axial positioning device; the two end faces of valve seat are widened; no special-purpose flange is required; the end faces of valve seat are of tongue-and-groove structure, which could avoid deformation of valve port in case of clamping.

C. Working pressure: 1.0/ 1.6MPa

D. Materials

Valve body: Cast iron/ ductile iron/ cast steel/ stainless steel

Valve disc: Ductile iron/ bronze/ nylon/ ceramics/ stainless steel

Sealing seat: Nitrile butadiene rubber ( NBR) / ethylene propylene rubber ( EPDM) / fluorine rubber ( VITON) silicone rubber ( SEP) / tetrafluoroethylene ( PTFE)