Specifications

Wafer Butterfly Valve with Pneumatic Actuator
1.Optional stainless steel body and PTFE seat
2.Smaller torque, better sealing

Wafer Butterfly valves, A type Wafer Butterfly Valve, LT type Wafer Butterfly Valve

Design Feature

• Horizontal pin: Reduce the exploding possibility of stem effectively under the internal unbearable pressure.
• Disc: There is no stem through disc completely for less resistance and more flow capacity.
• Stem: The design of two section of stem, can enhance the stability and resistance of disc effectively.
• Guide bearing: It is made by nylon and can ensure that the shaft rotate in absolute center,to decrease friction and torque.
• The seat with backrest: It is consisted of inner backrest and outer rubber.the backrest can withstand the deformation of seat when it is scoured and squeezed to extend service life.

Parameter

Actuator	Electric, Pneumatic, Handwheel, Handle
Control	On-off, Modulating, Inteligent
DN	40~1200mm
Pressure	1.0~2.5Mpa
Temperature	EPDM: -29~120°C, FPM: -29~150°C EPT: -20~140°C, CR: -29~80°C NBR: -29~80°C, SI: -29~200°C
Connection	Flange, Wafer
Structure	A Type, LT Type
Body Material	SS316L, SS316, SS304, SS304L, WCB, Casting Iron, Ductile Iron
Disc Material	SS316L, SS316, SS304L, Casting Iron, WCB, B148, Ductile Iron+Nylon 11, CE3MN
Seat Material	NBR, EPDM, EPT, FPM, CR, SI
Medium	Water, Liquid
Option	Limit Switch, Positioner, Solenoid Valve, Pressure-relief Valve