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GEMÜ 650

Pneumatically operated diaphragm valve

  • Description
  • Features
  • Technical specifications
  • Accessories

The GEMÜ 650 2/2-way diaphragm valve has a stainless steel piston actuator and is pneumatically operated. The valve is designed for use in a sterile environment. All metallic actuator components are made of stainless steel. The compression springs of diaphragm sizes 80 and 100 are made of epoxy coated spring steel. Normally closed (NC), Normally open (NO) and Double acting (DA) control functions are available. An integral optical position indicator is standard.

  • Autoclave capability
  • CIP/SIP capable
  • Optional flow direction and installation position
  • Suitable for inert, corrosive, liquid and gaseous media
  • Hermetic separation between medium and actuator
  • Connection: Clamp; Flange; Spigot; Threaded socket; Threaded spigot
  • Actuator: Pneumatic
  • ATEX
  • Explosion protection
  • Body material: 1.4408, investment casting; 1.4435, forged body; 1.4435, investment casting; 1.4539
  • Max. operating pressure: 10 bar
  • Max. media temperature: 100 ° C
  • Min. media temperature: -10 ° C
  • Nominal sizes: DN 4; DN 6; DN 8 (1/4''); DN 10 (3/8''); DN 12; 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'')
  • Control valve

Fitting Accessories

Product video

How diaphragm valves with metal valve bodies work

00:29 min
3368 Views
Online since 16.09.2015
Innovative methods for freeze-drying pharmaceutical products

Product applications

Innovative methods for freeze-drying pharmaceutical products

Many pharmaceutical manufacturing procedures are based on bio-technological processes. Often, their molecular structure is extremely complex and their liquid form is unstable, which is why many bio-pharmaceuticals cannot be stored directly. Freeze-drying is the gentlest procedure for conserving the active ingredient solution. Because of critical operating conditions the butterfly valve GEMÜ 490 is particularly important.

News for this product

09.04.2018

New tutorials on replacing two-piece diaphragms

The GEMÜ training team has already published a number of videos in recent years on specific content such as replacing wearing parts.

News for this product

31.03.2016

Diaphragm valves for oxygen applications

With immediate effect, the valve specialist GEMÜ from Ingelfingen is offering its customers an extended range of diaphragm valves for oxygen applications.