The HyVac® 14 is a two stage pump rated at 160 Liter/minute free air displacement and an ultimate vacuum of 0.1 micron. Reaches 6-12 militors of mercury with gas ballast open to atmosphere and, with gas ballast closed, recovers to original vacuum in 2-5 minutes. Gas ballast enables rapid purging of pump oil. Used where a larger system is to be evacuated or where speed of evacuations is of great importance. Complete with exhaust dome and baffle to condense oil spray and prevent smoking. Supplied with ½ HP, 115V/60Hz motor, grooved pulleys and molded v-belts, oil level sight gauge, draincock and nipples. 3-wire cord and plug with integral switch, belt guard included.