The GEMU 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.
Features
- Suitable for inert and corrosive liquid and gaseous media
- Valve body and diaphragm available in various materials and designs
- Compact design (ideal when space is at a premium)
- Choice of connections
- CIP/SIP capable
- Autoclave capability – dependent on version
- Minimal contamination, all media wetted parts made of ultra pure PFA / PTFE or PVDF / PTFE
- Extensive diagnostic facilities
- Surface finishes down to Ra ≤ 0.25 µm, electropolished
Advantages
- Hermetic separation between medium and actuator
- Optional flow direction
- Installation for an optimised draining is possible
- Control air connectors positioned in-line with piping (option: 90° offset)
- Versions according to ATEX on request
- Expelled air from spring chamber can optionally be piped to other locations
- Extensive range of accessories, easily retrofitted
Technical details
- Connection: Clamp; Flange; Spigot; Thread; Threaded socket
- Actuator: Pneumatic
- Seal material
- Body material: 1.4408, investment casting; 1.4435 (316L), forged body material; 1.4435, investment casting material; 1.4539
- Conformities: ; 3A; BSE/TSE; CE; EAC; FDA; Machinery Directive; Oxygen; Pressure Equipment Directive; Reg. (EG) No. 1935/2004; Reg. (EU) No. 10/2011; SIL; TA Luft (German Clean Air Act); USP
- 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
- Sterilisation temperature: max. 150 °C
