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Diaphragm seat valves

Diaphragm seat valves combine the best of two worlds - the hermetic sealing of a diaphragm valve and the performance of a seat valve. They offer reliable separation of medium and actuator and are suitable for open/close applications as well as for precise control and dosing tasks. This ensures maximum process reliability and flexibility.
Three GEMÜ diaphragm seat valves with different actuators.

Key features

  • CIP/SIP-capable and autoclavable: Ideal for sterile applications and easy cleaning.
  • Flexibly adjustable control characteristics: Implement linear or equal-percentage control.
  • Hermetic separation: Reliably protects the actuator from the medium thanks to the sealing diaphragm.
  • High number of switching cycles: Increase efficiency and offer fast cycles.
  • Individual block design: Enables customised solutions for your requirements.
  • No lift effect: thanks to the innovative GEMÜ PD technology.
  • Fluides de service typiques: Neutral and aggressive media, Liquids and gases
  • Stainless steel diaphragm seat valves with pneumatic, electric motor, and manual actuation for sterile processes in the food and pharmaceutical industries.

    2/2-way diaphragm globe valve with PD technology

    GEMÜ 567

    2/2-way diaphragm globe valve with PD technology Aseptic diaphragm globe valve for complex control applications

    • Hermetic separation of the actuator from the medium using GEMÜ PD technology for applications in the pharmaceutical and food industries
    • Available with manual, electric motorised and pneumatic drives
    • Flow rates from approx. 2 l/h to 6 l/h, precisely adjustable depending on design and process
    • Greatly reduced adhesive behaviour (no adhesion to the valve seat) of the diaphragmStandard FDA-compliant and suitable for contact with foodstuffs in accordance with Regulation (EC) No. 1935/2004
    • Optionally available with oxygen and ATEX versionIntegrable in P500M multiports
  • Electromotor-operated diaphragm seat valve made of plastic for high-purity and corrosive applications in the semiconductor, chemical, and pharmaceutical industries.

    Electromotive 2/2-way diaphragm globe valve

    GEMÜ C53

    High-purity PFA/PTFE control valve for handling critical media

    • Control valve for ultra pure applications in the semiconductor industry
    • High-resolution linear actuator with stepper motor
    • Integration in space-saving multi-port valve block solutions
    • Long service life with over 1 million qualified control switching cycles
    • Clean room production, fulfils SEMI F57
    • Ideally suited for corrosive media
    • Control valve based on the iComLine series
  • Electrically operated diaphragm seat valve made of stainless steel with compact drive unit for precise and hygienic control processes.

    Electromotive 2/2-way diaphragm globe valve with PD technology

    GEMÜ F60

    Aseptic filling valve for complex filling applications

    • Designed for extremely fast, precise and flexible filling processes with the highest requirements
    • Hermetic separation of the actuator from the medium thanks to excellent GEMÜ PD sealing technology for filling applications in the pharmaceutical and food industries
    • Durable and very fast maintenance thanks to quick locking and innovative cartridge spare parts system
    • FDA compliant as standard and suitable for contact with food according to Regulation (EC) No. 1935/2004
    • Optionally available with oxygen and ATEX versionIntegrable in P500 M multi-ports
  • Manually operated diaphragm seat valve made of plastic with hand lever for high-purity applications in the semiconductor, chemical, and water treatment industries.

    Manual 2/2-way diaphragm globe valve

    GEMÜ C51

    High-purity, compact PFA/PTFE valve with manual lever actuation

    • Hand lever made of PVDF (Quater-Turn)
    • Low space requirement due to compact design
    • Integration in space-saving multi-port valve block solutions
    • Clean room production, fulfils SEMI F57
    • Ideally suited for corrosive media
    • Choice of design with PTFE-coated screws and compression springs
  • Manual plastic diaphragm seat valve with handwheel and side union nut connections for precise control in industrial applications.

    Manual 2/2-way diaphragm globe valve

    GEMÜ C57

    High-purity, compact PFA/PTFE valve with handwheel actuation

    • Infinitely adjustable handwheel made of PVDF (Multi-Turn)
    • Low space requirement due to compact design
    • Integration in space-saving multi-port valve block solutions
    • Clean room production, fulfils SEMI F57
    • Ideally suited for corrosive media
    • Choice of design with PTFE-coated screws and compression springs
  • Diaphragm seat valve with handwheel and plastic coating for precise control of liquids and gases in industrial piping systems.

    Pneumatic 2/2-way diaphragm globe valve made of high-purity plastic

    GEMÜ P35

    Pneumatic 2/2-way diaphragm globe valve made of high-purity plastic

    • Low space requirement due to compact design
    • Ideally suited for corrosive media
    • High purity due to cleanroom manufacturing
    • Manifolds are a space-saving design solution
    • Choice of design with PTFE-coated screws and compression springs
  • Pneumatically operated diaphragm seat valve made of stainless steel for hygienic applications in the food, pharmaceutical, and chemical industries.

    Pneumatic 2/2-way diaphragm globe valve with PD technology

    GEMÜ F40

    Aseptic filling valve for complex filling applications

    • Designed for filling processes with fast and frequent switching cycles
    • Hermetic separation of the actuator from the medium thanks to excellent GEMÜ
    • PD sealing technology for filling applications in the pharmaceutical and food industries
    • Durable and very fast maintenance thanks to quick locking and innovative cartridge spare parts system
    • FDA compliant as standard and suitable for contact with food according to Regulation (EC) No. 1935/2004
    • Optionally available with oxygen and ATEX version
    • Can be integrated into P500 M multi-ports
  • Pneumatically operated diaphragm seat valve made of plastic for high-purity and corrosive media in the semiconductor and chemical industries.

    Pneumatic 2/2-way diaphragm globe valve,Pneumatic 2/2-way diaphragm globe valve

    GEMÜ C50

    High-purity, compact PFA/PTFE valve for handling critical media,High-purity, compact PFA/PTFE valve for handling critical media

    • Low space requirement due to compact design
    • Integration in space-saving multi-port valve block solutions
    • Clean room production, fulfils SEMI F57
    • Ideally suited for corrosive media
    • Choice of design with PTFE-coated screws and compression springs