ZJ Series Roots Vacuum Pump

ZJ /ZJB Series Roots Vacuum Pump

Summarize

ZJ, ZJB type Roots vacuum pump is a rotary variable displacement vacuum pump, also known as mechanical booster pump, is currently obtained in the middle and high vacuum of one of the main pumping equipment, its working principle is similar to Roots blower, is the use of two "8 "type rotor, synchronous rotation in the pump housing, from and complete the suction and exhaust.

The difference between ZJB type with relief valve Roots vacuum pump and ZJ type Roots vacuum pump is that ZJB type pump inlet and exhaust are connected, and a self-weight valve is installed vertically on the channel, which is used to keep the pressure difference between exhaust and intake in a controllable value, which is the maximum pressure difference allowed when the pump can be operated. Therefore, this valve is actually an overload automatic protection valve.

Use

ZJ, ZJB type Root vacuum pump is widely used in metal, non-metal material industry vacuum degassing, vacuum melting, vacuum surface treatment and aerospace space simulation, low-density wind tunnel test and electrical equipment, vacuum freeze drying equipment manufacturing and other occasions, the pump and water ring vacuum pump, liquid ring vacuum pump after series configuration, More suitable for chemical industry vacuum polymerization, reaction, decomposition and food industry vacuum steam room, vacuum drying, vacuum crystallization and other processes.

Main feature

1. Can have a large pumping speed in a wide pressure range (1-1.3 X 10²Pa).

2. There is no oil in the pump chamber to avoid oil vapor pollution of the vacuum system.

3. Low vibration, low noise.

4. The mechanical friction loss is small, so the driving power is small.

5. Easy maintenance and repair, low cost, long life.

6. Suitable for sudden discharge of vacuum system.

7. Condensable gas can be removed.

8. Can not be used alone, must be configured with the front pump. It is not allowed to start under atmospheric pressure, and can only be started when the front pump pumps the Roots pump into the □ pressure to the allowable starting pressure. The front pump is generally oil-sealed mechanical pump, liquid ring vacuum pump, such as water ring pump and oil ring pump.

9. Unique processing technology, good interchangeability of parts.

10. The gas flow part can be electroless plated sickle, oozing halloy alloy, spraying polytetrafluoroethylene (PTFE), ethylene trifluorovinyl chloride copolymer (ECTFE) treatment and the use of all stainless steel material, resistant to various acids, alkali, organic solvent corrosion.

11. The use of single-sided mechanical seals can completely eliminate the chronic problems of vacuum leakage and lubricating oil leakage caused by the wear of the axial seal.

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