FIG400 Anti-Vacuum Valves.

FIG400 Anti-Vacuum Valves FIG400 Anti-Vacuum Valves FIG400dt Anti-Vacuum Valves

FIG400 Anti-vacuum valves.

The FIG 400 is used to relieve unwanted vacuum conditions in storage tanks & cylinders and prevent collapse due to internal vacuum. They can also be used on steam systems to help condensate drainage. Available in brass, bronze & stainless steel.

Size Range:
  • DN15 (1/2”) TO DN25 (1”) = Brass or Stainless Steel
  • DN32 (1 ¼”) TO DN100 (4”) = Bronze or Stainless Steel
Pressure Range:
  • Can be set to minus 28” HG
Pipe Connections:
  • BSP, BSPT,NPT, Flanged
Features and Benefits:
  • Able to accommodate customer’s connection requirements.
  • Quality assurance approved to BS EN ISO 9001: 2015.
  • See data sheets for Discharge Capacities

All Gresswell Relief Valves are given a hydraulic seat tightness test before leaving the factory and all valves are supplied pre-set. Special tests or witness testing can be arranged at extra cost.

Flow Substance: