GR3 and 3C Wet Seal Systems | John Crane Seal Support Systems


Reservoirs for Chemical, Petrochemical, Pharmaceutical and General Industries

Stainless steel pressure vessels (with or without internal cooling coil) designed for general industry applications. These reservoirs provide buffer/barrier fluid to a dual-seal arrangement.


  • California Residents: PROPOSITION 65 WARNING
  • Stainless steel or carbon steel pressure reservoir with flat heads — without internal cooling coil (GR-3), with internal cooling coil (GR-3C)
  • Can be configured with nitrogen isolation valve (for pressurized seals) or orifice union (for unpressurized seals)
  • Compatible with variable barrier/buffer fluid types
  • Available with a comprehensive range of standard options
  • Electrical instruments suitable for Eexi circuits or Eexd (ATEX)and Explosion Proof (UL/CSA)
  • CE mark in accordance with Pressure Equipment Directive (PED) 97/23/CE provided to countries within the European Community
  • Welding in accordance with ASME VIII (welders qualified to ASME IX)



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