Two-Stage Transformer Vacuum Pump with Roots Pump

  • Two-Stage Transformer Vacuum Pump with Roots Pump vacuum is mainly used for vacuum drying and vacuum oiling of high-voltage power transformers.
  • The vacuum pump is powerful and can reach a working vacuum degree of 10Pa and the limit vacuum degree is 1Pa.
  • The pump can be used on 220KV, 500KV, ±800KV, and 1000KV power transformers.

Share to

Features of Two-Stage Transformer Vacuum Pump with Roots Pump

  1. A large pumping rate is available over a wide pressure range. It acts as an “accelerator” on the foreline pump for raising its high pumping speed and ultimate vacuum.
  2. ZJ series roots vacuum pump running parts without friction, no lubrication, no oil in the pump cavity, and you can get a clean vacuum.
  3. The vertical flow of gas in the pump chamber is conducive to the elimination of dust and condensate in the pumped gas.
  4. The rotor, with complete symmetry and precise dynamic balance, runs smoothly and reliably.
  5. Compact structure, designed with vertical and horizontal two exhaust ports, easy to install.
  6. The mechanical friction loss is small, so the driving power is small.
  7. Easy to maintain and repair, low cost, and high life.
  8. The vibration and noise are small.
  9. Can extract condensable gas.
  10. Eliminate oil leakage and emulsification – the application of imported oil seal shaft extension seal and composite seal structure design.
  11. Safe and reliable, it is equipped with an overflow valve to automatically protect the function.

Parameters of Two-Stage Transformer Vacuum Pump with Roots Pump

Parameter Unit ZJ-70 ZJ-150 ZJ-300 ZJ-600 ZJ-1200
Power Supply 50Hz    380V    3-Phase 4-Wire  (or as requested)
Power Supply KW 4 6.5 7 11 18.5
Limit Vacuity Pa ≤3
Pumping Speed L/S 70 150 300 600 1200
Pumping Level 2
Connection Diameter mm 50 80
Size Length mm 1200 1300 1400 1600 1750
Width mm 950 100 1100 1200 1300
Height mm 1500 1600 1700 1900 2100
Weight Kg 300 400 500 1250 1560

The machine size and weight will change slightly due to different configurations

Applications of Two-Stage Transformer Vacuum Pump with Roots Pump

  1. Two-Stage Transformer Vacuum Pump with Roots Pump is mainly used for vacuum drying and vacuum oil-injecting for high voltage electrical transformer as 220KV, 500KV, ±800KV, and 1000KV.
  2. Strong vacuum pumps make the working vacuum degree to 10 Pa and limit the vacuum degree to 1 Pa.
  3. In addition to this, you can also choose from more types of vacuum pumping systems.
Two-Stage Transformer Vacuum Pump with Roots Pump
Two-Stage Transformer Vacuum Pump with Roots Pump

Flow Chart of Two-Stage Transformer Vacuum Pump with Roots Pump

Flow chart of ZJ series vacuum pumping unit

Packaging & Shipping

To be packed in iron or wooden case(s) for long-distance (ocean/air) transportation

WHY CHOOSE US

Rich Experience

Leading manufacturer in industrial oil and gas treatment with more than 25 years experiences.

Tailored Design

Specializes in making your systems suit your needs & requirements. Every system is custom engineered & custom designed. 

Professional Technical Team

Professional pre-sales, in-sale and after-sales service team to meat customer’s requirement

Reliable Quality, Durable System

Top-quality components and workmanship ensure high performance