Sanitary Three Piece Welding Butterfly Valve

Our Butterfly valve body could be offered with weld end, male end, female end and clamp end.


Butterfly valves can be actuated either manually or pneumatically. There is a wide range of manual controls to meet the different system requirements. Pneumatic controls can be horizontal and vertical, single-, double-effect, and modulating. They can be fitted with control tops and proximity It is widely applied to many fileds,such as beer,beverage,dairy food,fruit juice,pharmacy,biological etc.

Design features

Product   Wetted Steel Parts AISI304/AISI316L Provided with material inspection report
Other Steel Parts AISI304
Size 1/2"~6",DN10~DN150
Seal   material EPDM/VMQ/FPM  
Working   pressure ≤10bar(145psi)
Working temperature PDM:-14~248ºF(-10~120ºC)
Other  materials are avaible upon request
Sterilization   temperature 302ºF(150ºC,max 20min)
Outside   surface treatment Ra16~32uin(o.4~0.8um)
nside surface   treatment Ra32~64uin(o.8~1.6um)
Connetion   ends butt-weld,clamped ends,male   ends, flange ends
neumatic   head Normally closed(NC)-Air to   open,spring to close
Normally   open(NO)-Air to close,spring to open
Air to air(AA)-Air to open, air to close


  1. The seat and gasket can be NBR (Nitrile), VMQ (Silicone) or Viton (FPM) 
  2. End connection can be butt-welded, sanitary clamp, threaded, flanged, I-line or others upon request.
  3. Handle: 3-position pull handle; multi-position handle in either pure stainless steel or with plastic cover.
  4. Actuator: pneumatic stainless steel actuator (vertical type), pneumatic aluminum actuator (horizontal type), electric actuator.
  5. Control: position sensor, C-top controller, C-top controller (AS-I)