• Low maintenance cost
  • Provides optimum gas blanketing of tank and product being stored
  • Prevents evaporation of product and reduces corrosion of tank by providing blanketing gas in vapor space
  • Prevents a flammable or explosive environment in the tank vapor space
  • Ensures pressure is maintained in the vapor space of a storage tank
  • Eliminates the need for a multiple regulator system or for complicated pilot operated blanketing


  • Simple operation, spring-loaded “push-push” balanced piston design
  • Variable orifice, field-adjustable flow capacity
  • Bubble-tight shut off
  • Single stage regulator
  • Modulating opening
  • Minimal lock up and droop


  • Refineries
  • Chemical & Petrochemical Plants
  • Liquid Bulk Storage Terminals
  • Pulp & Paper Plants
  • Food & Beverage Storage


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