ZJB/B Series Roots Vacuum Pump

ZJ/B Type ZJB/B Series Roots Vacuum Pump

Summarize

ZJ-B Roots vacuum pump is a rotary variable volume vacuum pump, also known as mechanical booster pump, is currently obtained in the middle and high vacuum 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, so as to complete the suction and exhaust.

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

Use

The new generation of 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 with 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, real space drying, vacuum crystallization and other processes.

Main feature

1. It can have a large pumping speed in a wide pressure range (1 ~1.3x10²Pa).

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 be started only when the front pump pumps the inlet pressure of Roots pump 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 vacuum leakage and lubricating oil leakage caused by the wear of the axial seal.

12. Transmission components adopt high strength helical gear, lower noise, prolong the service life of the gear.

13. The seal between the pump body and the oil tank is made of stainless steel and PTFE double lip oil seal, and the surface of the shaft sleeve is made of ceramic plating process, which completely solves the problem of material entering the oil tank and polluting the lubricating oil.

14. The bearing increases a level on the basis of the original, extending the service life of the bearing.

15. Redesign the appearance, the style is more concise and generous.

Type-Performance-parameter

Note:

1, The ultimate vacuum refers to the minimum value of stable partial air pressure measured at the pump inlet after full pumping with a compression vacuum gauge under the conditions of the recommended pre-pump without any additional container, the pump is sealed without air intake.

2, The performance of the above table is obtained under the conditions of the recommended pre-pump. Users can choose different pre-pump according to different conditions, but its main performance indicators will change.