Claw pumps GPR
Dry-running vacuum pumps and compressors
In the claw pump, two rotors turn against each other without contact, synchronised by a precision gearbox. The gas is compressed internally, giving high pressure differentials at an efficiency of over 60%.
With no oil in the pumping chamber and no wearing parts, the GPR are virtually maintenance-free.
Pumping speed
70 to 350 m³/h
Vacuum
down to 150 mbar
Pressure GPR C
0.7 to 2 bar
Maintenance
virtually none
Features
- contact-free rotors, no oil in the pumping chamber
- internal compression, efficiency over 60%
- air-cooled, with acoustic enclosure
- as a vacuum pump (GPR) or compressor (GPR C)
- Options: inlet filter, control valve for vacuum and pressure
- also available in ATEX version
Application
Central vacuum supply, packaging, woodworking, pneumatic conveying and process compressed air.
Product images
Technical data
Vacuum pump GPR 150
| Type | Frequency | Pumping speed | Ultimate pressure | Motor power | Rated speed | Sound pressure level (average) | Weight approx. | Oil quantity | Gas inlet | Gas outlet | Dimensions L × W × H |
|---|---|---|---|---|---|---|---|---|---|---|---|
| [Hz] | [m³/h] | [mbar] | [kW] | [rpm] | [dB(A)] | [kg] | [l] | [mm] | |||
| GPR 150 | 50 | 150 | 150 | 4 | 3000 | 76 | 180 | 0,8 | G 1 1/4" | G 1" | 1000 × 460 × 420 |
| 60 | 180 | 150 | 5,5 | 3600 | 78 | 180/200 | 0,8 | G 1 1/4" | G 1" | 1000 × 460 × 420 |
Compressor GPR 150C
| Type | Frequency | Flow rate | Overpressure | Motor power | Rated speed | Sound pressure level (average) | Weight approx. | Oil quantity | Gas inlet | Gas outlet | Dimensions L × W × H |
|---|---|---|---|---|---|---|---|---|---|---|---|
| [Hz] | [m³/h] | [bar (g)] | [kW] | [rpm] | [dB(A)] | [kg] | [l] | [mm] | |||
| GPR 150C5 | 50 | 150 | 0,7/1,0 | 5,5 | 3000 | 80 | 180 | 0,85 | – | G 1 1/4" | 1253 × 462 × 616 |
| GPR 150C7 | 50 | 150 | 1,0/1,4 | 7,5 | 3000 | 80 | 180 | 0,85 | – | G 1 1/4" | 1253 × 462 × 616 |
| GPR 150C9 | 50 | 150 | 1,5/2,0 | 9 | 3000 | 80 | 180 | 0,85 | – | G 1 1/4" | 1253 × 462 × 616 |
| GPR 150C11 | 60 | 180 | 0,7/1,0 | 7,5 | 3600 | 80 | 200/240 | 0,85 | – | G 1 1/4" | 1253 × 462 × 616 |
| GPR 150C13 | 60 | 180 | 1,0/1,4 | 9 | 3600 | 80 | 200/240 | 0,85 | – | G 1 1/4" | 1253 × 462 × 616 |
| GPR 150C15 | 60 | 180 | 1,5/2,0 | 11 | 3600 | 80 | 200/240 | 0,85 | – | G 1 1/4" | 1253 × 462 × 616 |
Dimensions: A × B × C from the dimensional drawings in the data sheets.
Sound pressure level: stated without a unit on the data sheets.
Compressor: GPR 150C5, C7 and C9 are specified for 50 Hz, GPR 150C11, C13 and C15 for 60 Hz; no gas inlet is stated for the compressor.
Frequently asked questions
Claw pump or rotary vane?
The claw pump runs dry and with almost no wear, so it pays off with long running times. For vacuum deeper than 150 mbar, an oil-lubricated rotary vane pump is the better choice.
Is the pump available for potentially explosive atmospheres?
Yes. GEV also supplies rotary vane, screw, claw and Roots pumps to ATEX Directive 2014/34/EU, tested by TÜV NORD. Tell us the zone and the medium, and we will determine the right version.
Who supplies and services the pumps?
We do. As General Europe Vacuum’s representative in Switzerland, we supply pumps and spare parts, advise on sizing and handle maintenance and repairs.
Downloads
Which vacuum pump is right for you?
Pumping speed, ultimate pressure, medium and operating mode determine the choice. We size the pump with you, supply accessories and spare parts and take care of servicing.