This application differs from vent gas recovery in that the vapors recovered are of a relatively fixed composition rather than a variable mixture. A typical application is capturing gases vented from storage tanks. The vacuum level is closely controlled in order to protect the storage tanks. Usually, the discharge pressure is relatively low. Often these gases are returned to the process or are liquefied and returned to the storage tanks.
Suction Capacity: 50 to 2,400 SCFM (85 to 4,100 m3/h)
Discharge Pressure Range: to 75 psig (to 6 bar abs.)
Suction Capacity: 12 to 1,000 SCFM (20 to 1,700 m3/h)
Discharge Pressure Range: to 170 psig (to 13 bar abs.)