BAUER GRU® 9
The BAUER GRU® Biogas Recovery Compressor range has been specifically designed for methane recovery and conditioning in biogas applications. The function of the biogas recovery compressor is to elevate the pressure of the incoming biogas from 1-7 psig (typical) to 90-230 psig, which is the operating pressure requirement for most PSA/membrane-type gas conditioning systems. BAUER offers a complete BAUER GRU® system size range from 10 HP to 750 HP (7.5-560 kW).
-
60-75 HP (45-55 kW)
-
98-238 scfm (104-557 m3/hr)
-
232 psig (16 bar) max discharge pressure

Need assistance with selecting the correct solution to meet your specific requirements?
To see the entire Biogas Brochure
SYSTEM FOOTPRINT
DIMENSIONS L X W X H inches (mm)
- 55” x 97” x 85” (1397mm x 2463.8mm x 2159mm)
BAUER GRU® 9 Performance At Various Horsepower and Suction Pressure Combinations | |||||||
---|---|---|---|---|---|---|---|
Motor | Suction Pressure | Max Flow at 150 PSIG Discharge Pressure | Max Flow at 232 PSIG Discharge Pressure | ||||
HP | kW | PSIG | BAR | SCFM | M3/H | SCFM | M3/H |
BAUER GRU® 9 (60HP/45kW) | |||||||
60 | 45 | 1 | 0.069 | 194 | 329 | 139 | 236 |
60 | 45 | 5 | 0.34 | 227 | 389 | 167 | 279 |
60 | 45 | 10 | 0.7 | 264 | 448 | 192 | 326 |
BAUER GRU® 9 (75HP/56kW) | |||||||
75 | 56 | 1 | 0.069 | 238 | 405 | 179 | 304 |
75 | 56 | 5 | 0.34 | 284 | 482 | 215 | 365 |
75 | 56 | 10 | 0.7 | 328 | 557 | 248 | 421 |
All performance values referenced in the table above are based on the following conditions: Referenced to ISO 1217 (14.50 psi (100 kPA), 68°F (20°C), 0% RH), Biogas temperature at compressor inlet: 86°F (30°C). Biogas Composition: 52% CH4, 46% CO2, 1% N2, 1% O2. Discharge pressure at compressor skid edge. Any deviations from these conditions will modify the stated performance results. Consult with your Bauer representative for conditions other than referenced herein.