GEMÜ R647

Pneumatically operated diaphragm valve

  • Description
  • Features
  • Technical specifications

The GEMÜ R647 2/2-way diaphragm valve is a straight through valve and is pneumatically operated. The valve doesn't have a closing spring and is only closed by applying compressed air. A diaphragm is the sealing element. The valve is mainly made of three components, a valve body, a shut off diaphragm and a cover with control medium connector. The control medium applies direct pressure to the shut off diaphragm pressing it against the shut off weir in the valve body. The high-flow valve body provides compact dimensions at high flow rates.

  • Compact, lightweight construction and high performance
  • Simple diaphragm replacement
  • Suitable e. g. for dyeing plant, paper industry and automatic feeding installations
  • The valve can be used in all applications where a closing spring is not required and where space is at a premium
  • Good flow characteristics due to flow optimised valve body
  • Media temperature:-4 to 176 °F
  • Ambient temperature:14 to 122 °F
  • Operating pressure :0 to 90 psi
  • Nominal sizes:1/2'' (DN 15) to 2'' (DN 50)
  • Body configurations:2/2-way body
  • Connection types:Flange | Spigot | Union end
  • Connection standards:ANSI | ASTM | BS | DIN | EN | ISO | JIS
  • Body materials:ABS | PP inliner / outliner | PVC-U | PVDF inliner
  • Diaphragm materials:EPDM | FKM | NBR
  • Conformities:EAC | NSF

Product video

How diaphragm valves with plastic valve bodies work

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Online since 16.09.2015