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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.
  • Typical operation media: 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.
  • Electromotor-operated diaphragm seat valve made of plastic for high-purity and corrosive applications in the semiconductor, chemical, and pharmaceutical industries.
  • Electrically operated diaphragm seat valve made of stainless steel with compact drive unit for precise and hygienic control processes.
  • Manually operated diaphragm seat valve made of plastic with hand lever for high-purity applications in the semiconductor, chemical, and water treatment industries.
  • Manual plastic diaphragm seat valve with handwheel and side union nut connections for precise control in industrial applications.
  • Pneumatically operated diaphragm seat valve made of plastic for high-purity and corrosive media in the semiconductor and chemical industries.
  • Pneumatically operated diaphragm seat valve made of stainless steel for hygienic applications in the food, pharmaceutical, and chemical industries.
  • Pneumatically operated diaphragm seat valve made of high-purity plastic for aggressive media in the semiconductor, chemical, and pharmaceutical industries.