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Pneumatic 2/2-way diaphragm valve made of metal

GEMÜ 650 BioStar

ConfigureTechnical data sheet
Pneumatically operated diaphragm valve made of stainless steel with aseptic pipe connection – ideal for pharmaceutical, food, and biotechnology applications.

Compact aseptic valve with low-maintenance stainless steel piston actuator

Product information

The GEMÜ 650 BioStar 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 actuator parts are made from stainless steel (except seals). 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 integrated optical position indicator is standard.

Key features

  • Compact design (ideal when space is at a premium)
  • CIP/SIP capable
  • Autoclave capability, depending on version
  • Controlled exhaust air duct available as an option
  • Wide range of adaptation options for add-on components and accessories
  • Version according to ATEX on request
Pneumatically operated diaphragm valve made of stainless steel with aseptic pipe connection – ideal for pharmaceutical, food, and biotechnology applications.

Technical details

Parameters
Value
Media temperature
-30 to 130 °C
Sterilization temperature
max. 150 °C
Ambient temperature
-20 to 60 °C
Operating pressure
0 to 10 bar
Nominal sizes
DN 4 to 150
Body configurations
2/2-way bodies
i-body
Multi-port bodies
T body
Tank valve body
Welding configuration
Connection types
Clamp
Flange
Spigot
Thread
Connection standards
ANSI
ASME
BS
DIN
EN
ISO
JIS
SMS
Body materials
1.4408, investment casting material
1.4408, investment casting material, PFA lined
1.4435 (316L), block material
1.4435 (BN2), forged material
1.4435 (F316L), forging material
1.4435, investment casting material
1.4539 (904L), forged material
3.7035, titanium, block material
Diaphragm materials
EPDM
FKM
PTFE/EPDM
PTFE/PVDF/EPDM
Conformities
3A
ATEX
BSE/TSE
CRN
EAC
EHEDG
FDA
FMEDA
Oxygen
Regulation (EC) No. 1935/2004
Regulation (EC) No. 2023/2006
Regulation (EU) No. 10/2011
SIL
TA Luft (German Clean Air Act)
USP

Downloads

23 Results
  • Technical information GEMÜ 601, 605, 611, 612, 615, 625, 629, 639, 695, 687, 660, 650, 653, 654, 649

    pdf (169 KB) -
    EN

  • Operating instructions GEMÜ 650, 687

    pdf (5 MB) -
    EN

  • Product-certificate-TA-Luft-gemue-650-gb-2025-12-09

    pdf (75 KB) -
    EN

  • Montageanleitung / Assembly instructions GEMÜ 650 mg150

    pdf (771 KB) -
    DE/EN

  • Product certificate EHEDG - GEMÜ diaphragm valve collection

    pdf (298 KB) -
    EN

  • Product brochure Angle gauge

    pdf (195 KB) -
    EN

  • Product certificate 3A - GEMÜ diaphragm valve collection

    pdf (209 KB) -
    EN

  • Technical information GEMÜ 650 special function Y

    pdf (964 KB) -
    DE/EN

  • Datasheet GEMÜ 650, 687 Special function J

    pdf (4 MB) -
    EN

  • Operating instructions GEMÜ 650

    pdf (8 MB) -
    EN

  • Declaration of Conformity - GEMÜ product collection

    pdf (104 KB) -
    EN

  • Product certificate O2 - GEMÜ diaphragm valve collection

    pdf (54 KB) -
    DE/EN

Suitable services

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  • Ensure longevity
    and reliability

    Maintenance

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  • Fast, efficient and
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    Repair

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  • Intelligent networking with GEMÜ CONEXO

    Digital support

    CONEXO makes maintenance digital: RFID technology and mobile apps enable the unique identification of your components and document maintenance processes transparently.