SKU MMV-687 Category

Diaphragm valve type 687

Pneumatic stainless steel valve, CIP/SIP-capable, for sterile processes.

Data sheet

Product information

The GEMÜ diaphragm valve type 687 is a pneumatically operated 2/2-way valve with low-maintenance diaphragm actuator and stainless steel intermediate piece. It is CIP/SIP-capable and meets the highest requirements in the pharmaceutical, food and chemical industries.

Special features

  • Hermetic separation between medium and actuator
  • CIP/SIP-capable for sterile processes
  • Suitable for abrasive and particle-bearing media
  • Stainless steel body for corrosive environments
  • Control functions: NC (closed), NO (open), DA (actuated on both sides)
  • Extensive adaptation options for automation and accessories

Advantages

  • Hygienic design with polished surfaces
    Sterilization temperature up to 150 °C
  • Nominal pressure PN16 for high loads
  • RFID option (CONEXO) for digital traceability
  • Large selection of connection types: clamp, flange, thread, connection piece

Variants

  • Nominal sizes: DN10 to DN100
  • Housing materials: Stainless steel 1.4408, 1.4435 (F316L), 1.4539 (904L), ductile iron with PFA/PP/hard rubber lining
  • Diaphragm materials: EPDM, FKM, PTFE
  • Connection types: Clamp (DIN/ASME), flange (EN, ANSI, JIS), thread, aseptic connections
  • Special versions: Belgaqua, 3A, oxygen version

Comparison with other diaphragm valves

  • Type 675: Manual, DN15-DN150, PN16, temperature up to 100 °C.
  • Type 687: Pneumatic, DN10-DN100, PN16, CIP/SIP-capable, sterilization up to 150 °C.

Areas of application

  • Pharmaceuticals and biotechnology
  • Food industry
  • Chemical industry
  • Water treatment
  • Sterile process systems
CharacteristicValue
Type of construction2/2-way diaphragm valve
ActuationPneumatic
Nominal sizesDN 10 – DN 100
Nominal pressurePN 16
Medium temperature-20 °C to +120 °C (sterilization up to 150 °C)
Ambient temperature0 °C to +160 °C
Housing materialStainless steel, ductile iron with lining
Membrane materialEPDM, FKM, PTFE
ConnectionsClamp, flange, thread, connection piece
Operating pressure0 – 10 bar

Customized SKID systems and process plants

In addition to high-quality diaphragm valves, we develop complete SKID systems and modular process systems – tailored to your application. Proven components such as butterfly valves, ball valves and diaphragm valves are used, with automation by pneumatic or electric actuators on request. Our solutions combine precise control, compact design and easy maintenance – ideal for chemical, energy and water technology as well as many other industries.

Typical areas of application:

  • Dosing and mixing stations: Integration of valves and measuring devices for precise process control
  • Filter and pump systems: Compact SKIDs for efficient media routing
  • Automated valve stations: Control via actuator, limit switches and solenoid valves
  • Individual process modules: Customized solutions for complex systems
Modular SKID system with diaphragm valves, butterfly valves and ball valves, completely pre-assembled for process control and automation in chemical and energy technology

FAQs

Is the valve CIP/SIP-capable?

Yes, suitable for sterile applications.

Up to 150 °C, depending on the membrane material.

DIN, EN, ISO, ASME BPE, JIS, SMS.

Yes, special version for oxygen up to 60 °C available.

CONEXO RFID for digital traceability and process reliability.

Insulation – In combination with fittings and containers

Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
Order and configure now.

We offer:

  • Custom-made insulating pads to fit your fitting
  • Heating jacket integration – reliable even under extreme conditions
  • Insulation jackets and pipe insulation for SKID assemblies – ideal for modular systems and complex systems
  • Special solutions for high temperatures – for power plants, the chemical and process industries
Armaturenfabrik Valve insulation High-temperature pipe insulation with IFS-Plast25 insulation pads and IFS-MW20 mineral wool for SKID systems, process plants

Make a request directly

Would you like individual advice?

Benefit from our expert knowledge in process monitoring. Our experienced team will provide you with sound advice on selecting the optimum products for your specific requirements. Arrange your personal consultation now!
Cookie Consent with Real Cookie Banner