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Vacuum Pump PRODUCTS

Quality first, service first as the goal, to provide customers with high-quality products

Model JZJLS Roots Pump with Circulated Gas-cooling + Water-ring Vacuum Pump Unit


JZJLS air-cooled roots liquid ring vacuum unit is composed of ZJL air-cooled roots pump and ZJ ordinary roots pump and 2BEA(2BVA).
Type I liquid ring vacuum pump, etc. The unit can realize automatic start and stop, overload protection and complete set of vacuum equipment for automatic control of various instruments and valves through electric contact vacuum meter (or pressure sensor) and PLC electrical control system.
Besides having some features of general Roots vacuum water-ring pump unit, this unit can work normally under high compression rate and high pressure differences. So the time of pre-extracting is greatly shortened with lower pre-extracting pressure.
This unit treats  water-ring vacuum pump as prepump, so it is specially suitable for the process with a large quantity of vapor and some corrosive and condensable gases. For example, vacuum impregnation, vacuum drying, vacuum distillation, vacuum evaporation, dehydration and crystallization for chemical products and polyester chips drying in textile industry etc.

Main specifications:
Model JZJLS-150.70 JZJLS-150.100.50 JZJLS-300.70 JZJLS-300.150.70 JZJLS-600.150.70 JZJLS-1200.300.150.70 JZJLS-1200.600.300
Pumping speed(L/S) 150 150 300 300 600 1200 1200
Ultimate pressure(Pa) 300 25 300 25 25 1 300
Power(Kw) 15 14 18.5 19 22.5 30 63
Chief Pump ZJL-150 ZJP-150 ZJL-300 ZJL-300A ZJL-600A ZJP-1200 ZJP-1200
Middle Pump   ZJL-100   ZJL-150 ZJL-150 ZJP-300A - ZJL-150 ZJL-600
Backing Pump 2BV5121 2BV5110 2BV5121 2BV5121 2BV5121 2BV5121 2BEA-203
Air inlet(mm) 100 100 160 160 200 250 250
Air Outlet(mm) 50 50 50 50 50 50 150



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Quality first, service first as the goal, to provide customers with high-quality products

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