PRESSURE VACUUM RELIEF VALVE (WB12,WB15)

PRESSURE VACUUM RELIEF VALVE (WB12,WB15)

· Pressure / Vacuum relief valves are used on liquid storage tanks and other process vessels or systems to prevent structural damage due to excess internal vacuum.
· Storage tanks are pressurized when liquid is pumped in, compressing the existing vapor or when rising temperatures cause increased evaporation or expansion of existing vapor. Conversely, a vacuum condition may be created when pumping out or due to falling temperature.
· To prevent tank damage, vapor must be allowed into or out of the tank at specified vacuum condition. The volume rate of venting depends upon the tank size,volatility of the tank contents, the pumping rates and the temperature.

  • Pressure Setting : 22mm H2O to 10,000mm H2O
  • Size : 2” through 12”
    -Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.
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