Body
Nominal size: DN20-DN250
Body material: WCB, 304, 316, 316L
Connection: flange
Pressure level: PN1.6-4.0MPa
Structural form: floating ball core

Valve components
Seat seal: 304, 316, 316L + STL \ carbonized tungsten
Valve core material: 304, 316, 316L + STL \ carbonized tungsten
Stem material: 304
Applicable media: water, oil, steam etc
 
performance
Straight-through design, small flow resistance and reduced pressure 
Blowout stem design, safe and reliable
Valve stem explosion-proof design
The surface of the sealing surface can be sprayed with welding or tungsten carbide
Allowable pressure difference: less than nominal 1.6mpa
Leakage: zero leakage
Back to the poor: plus or minus 2.5%
 
Pneumatic actuator
Dual function: ventilated and ventilated, the gas source fault maintains the current position
Single use gas opening: ventilating, disconnecting, air source failure
Single - acting gas - vent, open air and gas source failure
Optional accessories: commutating solenoid valve, limit switch, air filter pressure reducing valve, electrical locator, handwheel mechanism, and holding valve
Electrical parts can be explosion-proof