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0 reviews | Model: NAVAC NRS22
NAVAC 200-220/380-415V, 50Hz 200-230/460V, 60Hz, 3ph Single Stage Oil Sealed Rotary Vane Vacuum Pump
List Price: $1,199.65
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The NAVAC NRS22 NRS Series Vacuum Pump is an oil-sealed single-stage rotary vane pump. It is the basic equipment to obtain vacuum and can be used to pump inactive gas within the scope of a low vacuum and a small amount of non-condensable gas. The pump is especially suitable for packaging machines, free drying, vacuum transfer, medical technology, melting furnaces, analytical instruments, laboratory, etc. It can be used as a backing pump for roots pumps as well. The pump has a reasonable structure design for long failure-free operation. Air-cooled and low noise level. High displacement speed and excellent ultimate vacuum. No oil spray and leak, easy to maintain.
The controllable gas (generally dry air at room temperature) is admitted into the pump chamber. It is mixed with pumped vapor during the gas compression process. This increases the percentage of non-condensable gas such that the partial pressure of the vapor being pumped is below its saturated vapor pressure when the exhaust valve opens. The vapor is then discharged from the pump without liquefaction. The more vapor contained in the pumped gas, the more dry air is required (See Fig.1 Gas Ballast Valve).
Fig.1 Gas Ballast Valve
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