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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

Connection types: Clamp | Flange | Spigot | Threaded socket | Threaded spigot

Operation: Pneumatic

Valve body materials: 1.4408, investment casting | 1.4435, forged body | 1.4435, investment casting | 1.4539

Operating pressure: 0 to 10 bar

Media temperature: -10 to 100 °C

Nominal sizes: DN 4 to 100

ATEX: Yes

Explosion protection: Yes

Control valve: Yes

Fitting Accessories

Product video

Diaphragm replacement for GEMÜ 650 with diaphragm code 5E

07:13 min
767 Views
Online since 04.04.2018
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.

Product news

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.

Product news

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.