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Type 402

Pneumatically Operated Valve DN 15 - 50 mm (1/2" - 2")
Plastic Piston actuator


  • Plastic piston actuator
  • Compact design
  • Actuator high resistance to heat transfer
  • Smooth exterior design ideal for wash downs
  • Circumferential, defined sealing angle between process diaphragm and valve body
  • Control air in flow direction
  • Encapsulated diaphragm
  • Flexible diaphragm suspension


  • Eliminated water hammer
  • Depending on the diaphragm material, for all neutral and aggressive, gaseous and liquid media
  • The flow can be in either direction
  • Hermetic sealing
  • Cavity free body
  • The valve is unaffected by contaminated media


  • Available with a wide range of control equipment and accessories, also for retrofitting
  • Control air connection 90° to flow direction