The prevention of collapse due to internal vacuum is the reason Gresswell have designed the FIG400SS Anti-Vacuum Valve, as it is used to relieve unwanted vacuum conditions in storage tanks and cylinders.
FIG400SS valves can also be used on steam systems to help condensate drainage. The Gresswell FIG400 can be supplied in brass, bronze and stainless steel.
DN15 (1/2”) TO DN25 (1”) = Brass or Stainless Steel
DN32 (1 ¼”) TO DN100 (4”) = Bronze or Stainless Steel
Can be set to minus 28” HG
BSP, BSPT,NPT, Flanged
Features and Benefits:
Able to accommodate customer’s connection requirements.
Quality assurance approved to BS EN ISO 9001: 2008.
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.
For pricing information, please fill out this Enquiry Form and
we shall reply with a quotation to match your specifications. Unfortunately, we are unable to price these products over the telephone.