Conversion Kit

Conversion Kit


  • Upgrade in-service vacuum valve from apparatus group IIA to apparatus group IIB
  • To prevent the passage of flames into the cargo tank of flammable vapour and gas belonging to apparatus group IIB
  • Only suitable for Pres-Vac vacuum valve type HS-ISO-VAC


  • Consists of duplex IIB wire mesh element flame screen
  • Replacement of existing flame screen with a new flame screen approved for apparatus group IIB
  • Check-lift the movable parts by pushing the check-lift knob
  • Attending crew must be familiar with the normal friction in the system to evaluate if the parts move without friction

Download the full instruction manual for Conversion Kit for Vacuum Valve type HS-ISO-VAC here pdf button