Diaphragm Vacuum Pump 77-DVP100 is ergonomically designed to operate a vacuum pumping by expanding and contracting at a speed of 20 L/minute. Supplied with Nitrile Buna Rubber (NBR) valves, advices resistance to solid and abrasive particles. It possesses oil-free pumping mechanism that can offer improved performance. Featured with pressure adjustable mode, helps in altering the vacuum and gas velocity ranges.