The B400 Series ensures that tanks and vessels are kept safe during periods of excessive pressure due to external fire sources and also allows access to the tank for inspection / cleaning purposes. Additional Vacuum relief is also available on applicable sizes.  Standard seating design ensures minimum leakage of less than 1 scfh at 90% of set pressure.

  • Weight Loaded
  • Standard Pressure settings + 4 mbarg to 140 mbarg
  • Size range 8" (200 mm) - 36" (900 mm)
  • Standard body materials - Aluminium, Carbon steel, Stainless steel
  • Standard trim material - Stainless steel
  • Diaphragm material - PTFE
  • Flanges - Drilled only API/ANSI/DIN/JIS/Specials
  • Hinged cover ensures automatic re seat
  • Steam Jackets
  • Proximity Switches to indicate pallet lift
  • Non Standard applications consult factory