Save Money By Saving Product With Accurate Pressure

Groth Corporation

Delivering maintained pressure to your tanks.

Valves & Tank Equipment

Pressure/Vacuum Relief Valves are protection devices typically mounted on a nozzle opening on the top of a fixed roof atmospheric storage tank. Their primary purpose is to protect a tank against rupture or implosion by allowing the tank to breathe, or vent, when pressure changes in the tank due to normal operations. Emergency Relief Valves protect tanks against excessive pressure caused by external fire exposure or flashes within the tank. Emergency relief valves provide higher flow capacity than standard pressure/vacuum relief valves.

Why Pressure/ Vacuum Relief Valves Are Required:

  • Saves money by saving product
  • Minimizes evaporation emissions
  • Protects tank from over or under pressure when sized properly
  • Protection against fire hazard when conforming to API standards
  • Reduces atmospheric corrosion of tank
  • Generally required by OSHA, EPA, etc.

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Tank Blanketing

The Groth Gas Blanket Regulator ensures that a constant gas pressure is maintained in the vapor space of a storage tank. When liquid is pumped from a tank or the temperature drops, a vacuum condition would develop. With the Groth regulator, a blanket gas is delivered to maintain the desired tank pressure. Blanket gas pressure can be maintained as low as 0.5″ W.C. This reduces evaporation of stored product to a minimum and prevents the introduction of air and moisture to the tank. This conserves product and greatly reduces emissions. It also assists with providing fire protection by maintaining an inert gas environment in the tank.