Variable Pitch Screw Vacuum Pump

NEGP Variable Pitch Screw Vacuum Pump

Summarize

Variable pitch screw vacuum pump is the use of gear drive synchronous reverse rotation of the mutual mesh without contact with the left screw and the right screw for high-speed rotation, the use of pump shell and mesh helix to separate the spiral groove into a number of Spaces, the formation of a number of stages, the gas in the various grooves (column deformation pitch) for transmission movement. The two screws are finely balanced, supported by bearings, and installed in the pump shell. There is a certain gap between the screw and the screw, and the screw and the pump body. There is no friction between the pumps when they work, smooth operation, low noise, and no lubricating oil in the working chamber. It can completely replace oil-sealed mechanical pump and water-sealed mechanical pump to become a new generation of main vacuum acquisition equipment.

Main feature

1.NEGP pump is a dry pump, no oil in the working chamber, which is conducive to media recovery, clean vacuum can be obtained, no waste oil in the working process, waste water discharge, no pollution to the environment, is an environmentally friendly vacuum equipment.

2.There is no valve in the pump chamber, discharge the possibility of internal valve failure, so that the dust and tar resistance is strong, and the pump chamber shell can be removed, easy to clean the screw (if necessary).

3. Because the gas is compressed in the pump, the power consumption is low.

4. High limit vacuum, rotor profile optimization design, using Japan five-axis linkage composite machining center precision machining, single pump limit pressure ≤1Pa, high vacuum area extraction, high efficiency, low energy consumption.

5. Gas that can remove a lot of water vapor and a small amount of dust. After adding accessories, it can also remove flammable, explosive and radioactive gases.

6. High limit vacuum, can replace most Roots water ring and Roots reciprocating vacuum unit.

7. The surface of the pump cavity and screw can be nickel-plated and the infiltration of Hastelloy coating, which can remove a large amount of water vapor and a variety of corrosive media.

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