... and degassing. The machine use high quality vacuum pump and enhancing pressure Roots pump for vacuum, which ensures the draining out of vapour ... 4\The machine has a perfect protector. The temperatures, pressure, vacuum range, excess pressure, under pressure are totally monitored, which ... voltageKV≥70Water contentppm≤5Gas content%≤0.1Particlesμ≤3 ZYD-100 double stage vacuum oil purifier with CE