VRA / VRAH Series - Vacuum Valves

Product Type(s) : Relief Valves
Description :

Protection of tanks/vessels against vacuum.




  • Precise response accuracy
  • Gas-tight design
  • Maintenance-free pneumatic seat lift actuator for remote function control
  • Optimum cleanability through ball-shaped housing
  • No shaft guide in product chamber
  • Cleaning of the inside of the housing by a special spray nozzle
  • No dripping or splashing of fluids during cleaning due to a drip tray
  • Operating safety is guaranteed by:
    • Metal valve shaft
    • Elastomer seat seal
    • PTFE slide bearings

A proximity switch can be mounted to the seat lift actuator to provide for position feedback, indicating the fully open position, for use during cleaning or as function check. The product-contact surfaces are made of AISI 316L / DIN EN 1.4404 stainless steel. Vacuum valves in the DELTA valve series can be supplied as:

  • Suspended model (VRAH) in DN 100
  • Upright model (VRA) in DN 50, DN 100, DN 150