Soft Seat big size butterfly valve


Diameter:DN40-DN1600
Pressure:PN1.0-1.6Mpa
Medium:Fresh water,sewage,sea water,weak acid,weak base etc
Temperature:-20~135 degree
Body Material:Grey cast iron,ductile iron,cast steel,stainless steel
Operation: According to clents requiremen

Adoptive Standard for big size butterfly valve:

1.Valve Design:MSS SP-67/Class 150 for Casting steel,API609+ANSI B16.1 for DI/CI
2.Flange:ANSI B 16.1 Class 125,DIN250 1 PN10/16,BS4504 PN10/16
3.Face to face:BS EN558-1,the length in BS EN558-1 is the same in DIN3202/API609/MSS SP-67:2002
4.Pressure test conform to API598

Features  big size butterfly valve:

(1) Small in size and light in weight and maintenance. It can be mounted wherever needed.
(2) Simple, compact structure, quick 90 degree on-off operation.
(3) Disc has two-way bearing, perfect seal, without leakage under the pressure test.
(4) Flow curve tending to straight-line. Excellent regulation performance.
(5) Various kinds of materials, applicable to different medium.
(6) Strong wash and brush resistance and can fit to bad working condition.
(7) Center plate structure, small torque of open and close.
(8) Long service life. Standing the test of ten thousands opening and closing operation.
(9) Can be used in cutting off and regulation medium