Pneumatic Diaphragm Valves DIASTAR

1/2" to 2" sizes PVC, CPVC, polypropylene, PVDF - EPDM or PTFE diaphragms

FC -fail closed - FO - fail open - DA - double acting

Socket unions connections or ANSI Flanged 

The newly designed  DIASTAR pneumatic Diaphragm Valves from George Fischer  represent a revolution in terms of design, safety, efficiency and simplicity.

Metal through bolts that may be subject to corrosion have been replaced by a central union nut. This connection is non-corrosive, temperature stable and high pressure rating up to 240PSI.

Larger passageways for liquid have doubled the Cv values vs. the classic design of diaphragm valves.  This frictional energy saving allows for higher flows in smaller size piping.  As you would expect, the flow characteristic is very linear and still ideally suited for control applications.

The air connections can be rotated in relation to the flow connections and pre-tensioned spring-kits facilitate installation and maintenance enormously. The accessory interface allows simple integration into facility automation.

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See Type 514 manual diaphragm valve for additional details

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