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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
  • Connection: Flange; Spigot; Union end
  • Actuator: Pneumatic
  • Body material: ABS; PP inliner / outliner; PVC-U; PVDF inliner
  • Max. operating pressure: 6 bar
  • Max. media temperature: 80 ° C
  • Min. media temperature: -20 ° C
  • Nominal sizes: DN 15 (1/2''); DN 20 (3/4''); DN 25 (1''); DN 32 (1 1/4''); DN 40 (1 1/2''); DN 50 (2'')

Product video

How diaphragm valves with plastic valve bodies work

00:33 min
Online since 16.09.2015