2X series rotary vane vacuum pumps is the basic equipment used to seal the airtight ... use in the indusries such as vacuum metallurgy, vacuum welding, vacuum casting, vacuum drying, chemical and pharmaceutical, electric vacuum devices. Long continuous work is enabled ... valveDDC-JQ25DDC-JQ40DDC-JQ65DDC-JQ80Weight kg59129168194343 2X Series Rotary Vane Vacuum Pump