GMB40K Datasheet
GMB40K High Capacity Roots Vacuum Booster Pumps
Innovative modular rotor design of high strength alloy-steel shafts with lightweight rotor lobes which safely enable higher running speeds.
Flexible with multiple systemisation options available
The GMB40K is scalable with multiple backing configurations available. Built to global standards IEC and NEMA flange compatibility. ATEX options are also available for use Hazardous or chemical applications.
High capacity pump with a low footprint
Innovative modular rotor technology ensures high performance on the smallest footprint and weight. This ensures the highest degree of flexibility when designing large vacuum systems.
Designed for harsh applications
The GMB40K is a robust pump designed for harsh applications. The innovative modular rotor design is of high strength alloy-steel shafts with lightweight rotor lobes. This patented construction gives maximum displacement on an industry leading footprint.
- Supported applications
- Technical specifications
- Downloads
- Steel degassing
- Vacuum Metallurgy
- Low density wind tunnels
- Space simulation
- Chemical Process Industries
| GMB40K Technical data | Units | |
| Pumping speed | 31,000 * 18,250 |
m3/hr CFM |
| Minimum backing capacity (m3/hr) | 6,500 3,825 |
m3/hr CFM |
| Max Pressure across booster | 25 18.75 |
Mbar torr |
| Total input power at ultimate | <2.5 <3.35 |
KW hp |
| Ultimate pressure | <0.01* <0.008 |
Mbar torr |
| Rotational speed | 540 min 3,960 max |
rpm |
| Motor power | IEC - 30 NEMA - 40 |
KW hp |
| Noise | 80 | dB(A) |
| Vibration | <4 <0.16 |
mm s-1 inch s-1 |
| Cooling water connections | 1/2" | BSP (IEC Variant) NPT (NEMA variant) |
| Cooling water temperature | 5 - 40 41 - 104 |
°C °F |
Mimimum cooling water flow (@max temp) |
10 2.6 |
Litres min-1 US gal min-1 |
| Cooling water Pressure | 1.0 14.7 |
bar psi |
| Recommended lubrication type | Synthetic booster gear oil | |
| Lubricant quantity | 7 1.85 |
Litres US gal |
| Connection flanges | Inlet DN500 Outlet ISO250 |
|
| Weight | 2260 4980 |
Kg lbs |
| Dimensions | See drawing | |
| Ambient T | -20 - 40 .4 - 104 |
°C °F |
