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

Testing:

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:

Liquid

Steam

Gas