BAUER GRU®
The BAUER GRU® Vapor Recovery system range has been specifically designed for gas vapor recovery in oil and gas production facilities. BAUER offers a complete size range from 10 HP to 75 HP. At the heart of every BAUER GRU® vapor recovery system is the legendary BAUER Rotorcomp® rotary screw compressor, world-renowned for exceptional durability and reliability. The sophisticated control system within the BAUER GRU® senses pressure upstream of the unit, and automatically adjusts compressor speed to modulate compressor output based on the availability of gas. If there is an insufficient amount of gas available for compression, the system automatically goes into standby mode, for instantaneous compression when upstream gas pressure suddenly increases. This significantly reduces the “need” to vent gas into the atmosphere, because the compressor is ready to operate instantaneously (compared to ramping up through normal start-up sequences after being completely shut down).

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STANDARD SCOPE OF SUPPLY
- Engineered to operate reliably under continuous duty in harsh conditions
- Designed in accordance with NFPA Class 1, Div 2 standards
- Variable speed drive for precise flow control
- Highly accurate pressure transducer at low inlet pressures
- Stainless steel piping and hardware
- 24-month full warranty, plus lifetime support
- BAUER CONNECT® Remote Telemetry & IoT
Technical Data
FOR VAPOR RECOVERY APPLICATIONS - AT SUCTION PRESSURE OF 0.25 PSIG (0.017 BAR) | ||||||||||||||
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At Min RPM | At Max RPM | |||||||||||||
Model | Motor | Suction Pressure | Final Pressure | RPM | SCFM | MCFD | M3/H | RPM | SCFM | MCFD | M3/D | |||
HP | kW | PSIG | BAR | PSIG | BAR | |||||||||
GRU 2-10 | 10 | 7.5 | 0.25 | 0.017 | 210 | 14.5 | 3000 | 12 | 18 | 0.5 | 5091 | 27 | 38 | 1.1 |
GRU 3-15 | 15 | 12 | 0.25 | 0.017 | 210 | 14.5 | 3500 | 28 | 40 | 1.1 | 4321 | 36 | 52 | 1.25 |
GRU 3-25 | 25 | 19 | 0.25 | 0.017 | 210 | 14.5 | 4000 | 32 | 47 | 1.3 | 6988 | 60 | 86 | 2.4 |
GRU 6-30 | 30 | 23 | 0.25 | 0.017 | 210 | 14.5 | 1800 | 65 | 94 | 2.7 | 1913 | 71 | 102 | 2.9 |
GRU 6-40 | 40 | 30 | 0.25 | 0.017 | 210 | 14.5 | 3500 | 74 | 106 | 3 | 4408 | 98 | 141 | 4 |
GRU 6-50 | 50 | 38 | 0.25 | 0.017 | 210 | 14.5 | 3500 | 74 | 106 | 3 | 5393 | 124 | 179 | 5.1 |
GRU 9-60 | 60 | 45 | 0.25 | 0.017 | 210 | 14.5 | 2000 | 75 | 108 | 3.1 | 3851 | 166 | 240 | 6.8 |
GRU 9-75 | 75 | 56 | 0.25 | 0.017 | 210 | 14.5 | 3900 | 169 | 244 | 6.9 | 4671 | 208 | 299 | 8.5 |
NOTES: 1) All performance data for compressed gas inlet (suction conditions) is stated at Standard Conditions: Suction Pressure as Indicated, Gas Temperature of 68⁰ F (20⁰ C) and RH of 0%
2) All performance data for compressed gas outlet is stated at ISO 1217 Reference Conditions: Absolute Pressure at 364 ft (111m) elevation = 14.5 psig (1 bar), Gas Temperature of 68⁰ F (20⁰ C) and RH of 0%
3) All performance data are based on a typical well gas composition based on the following Mol percentages: Methane 85.4%, Ethane 8%, Propane 2.9%, Butane 1%, Nitrogen 0.7%, Carbon Dioxide 2%
4) Bauer offers a two-stage rotary screw compressor booster option for higher inlet suction pressures and high flow.
All Bauer GRU™ systems are built to Class1, Div2 NFPA standard