Wafer type Centerline double stem Square stem back-seated butterfly valve without pin
Design:Centerline design, double stem without pin, back-seat (hard seat ) butterfly valve
End connection: wafer end
Temperature range: -20℃ to 120℃.
Design standard: API 609
Side flange: ANSI 125 , ANSI 150, DIN PN10, PN16 or customer need
Top flange standard: ISO 5211
Test standard: API 598
Operation: Handle, gearbox , electric actuator, pneumatic actuator or hydraulic actuator
二、Application: Petroleum industry, Shipbuilding industry, Urban water supply and drainage pipeline, etc.
Body: Ductile cast iron, cast iron,
Disc: SS 304, SS316, Ductile cast iron, Aluminum-bronze
Stem: SS316, SS410, SS416, SS304, SS 17-4PH
Seat: NBR, EPDM, VITON, high temperature EPDM, Food grade EPDM
四、Surface: Epoxy resin coating both inside and outside the body
1. With centerline design, simple structure and easily operation
2. Double stem of square connection between stem and disc, more reliable performance.
3. Pinless design to save material .
4. Back-seat design is more easily to assembly and disassembly