Dekker AquaSeal two-stage water-sealed liquid ring vacuum pump system including the following: Dekker model DV0501B-DA3 two-stage liquid ring vacuum pump with 50 HP premium efficiency TEFC motor (230/460v), fabricated steel baseplate, discharge separator-reservoir (no recovery), seal-water solenoid valve, flow control valve, pump overflow valve, seal-water isolation valve, Y-strainer, inlet check valve, and vacuum gauge. A vacuum relief valve is strongly recommended and sold separately.