Wafer butterfly valve (half shaft without pin)

Features:
Smail in size and light in weight, easy instillation and maintenance
It can be mounted wherever needed
Simple and compact construction , quick 90 degree on - off operation
Minimized operating torque,energy saving
Flow curve teeing to straight line,excellent regulation performance
Long service life, standing the test of tens of thousands opening/closing operations
Bubbles-tight sealing with no leakage under the pressure test
Wide selection of materials, applicable to various mediums

Materials of main parts:
Body: CI, DI, stainless steel, and carton steel (WCB)
Disc: monel,ductile iron, stainless steel, al-bronze, and ductile iron with nylon coated
Seat: EPDM,NBR, PTFE,Viton or vulcanized
Body stem: ss416, ss316
Monelpin:ss316 or monel
Operated: handle ore worm gear,pneumatic, and electric actuator inner