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Pneumatic 2/2-way diaphragm valve with metal body

GEMÜ 687

ConfigureTechnical data sheet
Pneumatically operated stainless steel diaphragm valve with weld ends and plastic actuator housing – ideal for the pharmaceutical, biotechnology, and food industries.

Valve with low-maintenance plastic diaphragm actuator

Product information

The GEMÜ 687 2/2-way diaphragm valve has a low-maintenance membrane actuator and is pneumatically operated. The valve has a metal distance piece. Normally Closed (NC), Normally Open (NO) and Double Acting (DA) control functions are available.

Key features

  • Suitable for particulate and abrasive media
  • CIP/SIP capable
  • Wide range of adaptation options for add-on components and accessories
  • Hermetic separation between medium and actuator
  • Suitable for particulate and abrasive media
  • Stainless steel body suitable for corrosive environments
  • Wide range of adaptation options for add-on components and accessories
Pneumatically operated stainless steel diaphragm valve with weld ends and plastic actuator housing – ideal for the pharmaceutical, biotechnology, and food industries.

Technical features

Parameters
Value
Media temperature
-20 to 120 °C
Sterilization temperature
max. 150 °C
Ambient temperature
-10 Up to 60 °C
Operating pressure
0 Up to 10 bar
Nominal sizes
DN 10 to 100
Body configurations
Straight through body
Tank valve body
T-body
Connection types
Clamp
Flange
Spigot
thread
Connection standards
ANSI
ASME
BS
DIN
EN
ISO
JIS
NPT
SMS
Body materials
1.4408, investment casting material
1.4408, investment casting material, PFA lined
1.4435 (316L), forged material
1.4435 (BN2), forged material
1.4435, investment casting material
1.4539 (904L), forged material
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
Diaphragm materials
EPDM
FKM
PTFE
Conformities
3A
Belgaqua
CRN
EAC
FDA
FMEDA
Oxygen
Reg. (EU) No. 10/2011
Regulation (EC) No. 1935/2004
TA Luft (German Clean Air Act)
USP
custom_technical_data_

Downloads

85 Results
  • Instrucciones de montaje diaphragm change MG 10-300

    pdf, 1.80 MB, ES

  • Montagevejledning diaphragm change MG 8

    pdf, 1.47 MB, DA

  • Betriebsanleitung GEMÜ 650, 687

    pdf, 6.62 MB, DE

  • Montageanleitung / Assembly instructions GEMÜ 687 MG80 umbau zwischenstueck

    pdf, 159 KB, DE/EN

  • Montageanleitung / Assembly instructions GEMÜ 687 sak stf1 mg80 100

    pdf, 1.80 MB, DE/EN

  • Notice d'utilisation GEMÜ 650, 687

    pdf, 5.07 MB, FR

  • Produktzertifikat passivated - electropolished GEMÜ valve body collection

    pdf, 86 KB, DE

  • Operating instructions GEMÜ 687

    pdf, 10.39 MB, DE/EN

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

    pdf, 169 KB, EN

  • Fiche de spécifications pour le dimensionnement de vannes à membrane

    pdf, 769 KB, FR

  • Spezifikationsblatt Membranventile Metall

    pdf, 1.23 MB, DE

  • Montageanleitung / Assembly instructions GEMÜ 687, 687 SAK mg25 40 50 stf 2 stf3

    pdf, 5.28 MB, DE/EN

Suitable services

  • Expert knowledge for your applications

    Training

    Deepen your expertise in valve technology and plant control. Our training courses provide practical content to help you design processes that are safe, efficient, and compliant with standards.

  • Ensure longevity and reliability

    Maintenance

    Regular maintenance ensures consistently stable processes. Our service teams ensure the availability of your systems and reliably extend the service life of your components.

  • Fast, efficient, and precise

    Repair

    When it comes to repairs, every minute counts. Our experts analyze, repair, and test reliably - using original spare parts, technical precision, and a focus on minimizing downtime.

  • 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.