Description & Application:    Sanitary pneumatic butterfly valves consist of a stainless steel pneumatic actuator and butterfly valve body. Driven by compressed air, the pneumatic actuator accordingly control the butterfly valve body to open and close, in order to control the flow rate of hygienic fluids. Sanitary pneumatic butterfly valves can realize remote operation and reduce much human working load. They are usually used in the pipelines where is far away from control unit or places with very limit access to manual operation, as well as systems in need of very frequent open/close operations. Stainless steel pneumatic actuator butterfly valves are the ideal choice for extremely anti-corrosion applications. Material:

Valve Body:	Medium contact part: SS304 or 316L upon customer request
Other Part:	SS304 Or other stainless steel material on request
Sealing Gasket:	EPDM, PTFE, VMQ, NBR or FPM for your free choice
Surface Polish:	Free choice from mirror polish, sand blasting, electric finishing, etc.

Specification Details:

Opened / Closed by	Stainless steel pneumatic actuator
Working Principle	Air / spring return mode, or Air/air double acting mode
Operation Mode	Normally open (NO), or normally closed (NC)
Pipe Diameter	DN10 ~ DN200 / 1/2” ~ 8”, other size can be tailored
Seal Material	EPDM / PTFE / NBR / VMQ / FPM
Working Pressure	Max 10 bar / Min. 0 bar
Working Temperature	-10 ~ +90 degrees centigrade
Actuator Air Supply Pressure	4 bar ~ 8 bar
Surface Finish	Outside EP, inside Ra<0.8μm

Model Selection: We have many types of sanitary hygienic pneumatic butterfly valves. Please feel free to select below technical offers according to your need. Let us know your choice and we will provide the most suitable sanitary valves to you:

1. Pneumatic ActuatorType

• Air / Air double acting: Air in–Piston outwards–Valve stem rotates–Valve open–Air in again– Piston backwards–Valve closed
• Air / Spring return single acting: Air in–Piston outwards–Valve stem rotates–Valve open–Piston backwards automatically by spring–Valve closed

      2. Operation Mode A. Normally open (NO ): valve is open in normal situation, air in to close B. Normally closed ( NC ): valve is closed in normal situation, air in to open 3. Valve Body Connection End: 4. Connection End Dimension Standard: DIN / SMS / ISO / RJT / BS4825 / 3A / ASME BPE,