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GEMÜ 620

Pneumatically operated diaphragm valve

  • Description
  • Features
  • Technical specifications
  • Accessories

The GEMÜ 620 2/2-way diaphragm valve has a low maintenance metal membrane actuator and is pneumatically operated. The valve is also suitable for high media temperatures up to 150 °C.

  • Insensitive to particulate media
  • Suitable for inert, corrosive, liquid and gaseous media
  • High flow rates
  • Optional flow direction
  • PFA, PP or hard rubber lined (optional)
  • Connection: Flange; Threaded socket
  • Actuator: Pneumatic
  • ATEX
  • Explosion protection
  • Body material: EN-GJL-250; EN-GJS-400-18-LT (GGG 40.3), PFA lined; EN-GJS-400-18-LT (GGG 40.3), PP lined; EN-GJS-400-18-LT, hard rubber lined; EN-GJS-500-7, PFA lined; EN-GJS-500-7, PP lined
  • Max. operating pressure: 10 bar
  • Max. media temperature: 100 ° 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''); DN 65 (2 1/2''); DN 80 (3''); DN 100 (4''); DN 125 (5''); DN 150 (6'')
  • Control valve

Fitting Accessories

Product video

How diaphragm valves with metal valve bodies work

00:29 min
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Online since 16.09.2015
Boron Decontamination

Product applications

Boron Decontamination

According to the World Health Organisation a boron content of >0.5 mg/l in drinking water is harmful. In addition, it has been shown that too high a boron content in water used for the irrigation of plants can also be harmful to humans and animals when these are eaten. Boron therefore presents a new challenge in the treatment of drinking water in addition to the previously known pollutants in drinking water. The application shown here presents a new and trend-setting process.