
Evacuate Pipelines | Eliminates Flaring | Accelerate Purging | Portable | Set & Forget PLC Control
The PS175 Pipeline Service Compressor is a 2–stage (reciprocating and rotary screw) natural gas compressor for evacuating natural gas pipelines with pressures up to 1,200 psi (8,275 kPa). Isolated sections of pipeline are evacuated and discharged into an adjacent section of pipeline.
The PS175 compressor completely eliminates flaring, venting and the associated environmental impacts while conserving saleable natural gas. As gas is not released during the evacuation process, the compressor can be operated in built up and urban areas, reducing the length of pipeline isolation required and allowing for faster service with less disruption to customers.
Trailer mounted and engine powered from pipeline gas, performance can be monitored remotely with real-time status on any web-enabled device. Operation is fully PLC controlled and automated based upon user configured parameters and setpoints.
Standard Features
- 2–stage compression for ΔP up to 900 psi (6,200 kPa )
- Natural Gas powered; no external fuel or power source required
- Rapid setup and breakdown
- Aftercooler limits discharge temperature to protect plastic / composite pipe
- Intuitive web browser based HMI
- Fully controllable based on user parameters and stop conditions
- Automatic operation and remote monitoring capability allowing unsupervised operation
- EPA / CARB Certified Natural Gas engine
Benefits
- Energy savings and conservation of gas
- Completely eliminate flaring and venting
- Minimize CO2 and methane emissions
- Reduce isolated pipeline pressure to 0 psig
- Ability to reach vacuum pressure of -3.0 psig
- Able to locate in urban areas to minimize service disruption
- Alternative to nitrogen displacement
- Inline compressors can remain in operation
Engine | 175hp 10.3L V8 |
Operating Pressure Range | 0 - 1500psi |
Flow Range | 0 - 9100 mscfd |
PSC175 Compressor Weight (Not including trailer) | ~10,000lbs/4,535kgs |
Enclosure Dimensions | Length: 20'/6.1m Width: 8'/2.44m Height: 8'/2.44m |
Trailer Dimensions | Length: 30'/9.14m Width: 8'6"/2.59m Height: 12'10"/3.91m |
Gas Pipeline Evacuation |
Inline Inspections |
Maintenance and Repair |
MAOP Testing |
Pig Pushing |
Pressure Boosting |
Decommissioning |

Performance
DISCHARGE PRESSURE Max ΔP: 900 psi / 6205 kPa | |||||||||
---|---|---|---|---|---|---|---|---|---|
SUCTION |
PSI kPa |
300 2070 |
400 2760 |
500 3445 |
600 4135 |
700 4825 |
800 5515 |
900 6205 |
1000 6895 |
100 690 |
885 25.1 |
818 23.2 |
745 21.1 |
744 21.1 |
677 19.2 |
660 18.7 |
630 17.8 |
||
200 1380 |
1535 43.5 |
1391 39.4 |
1256 35.6 |
1130 32.0 |
1017 28.8 |
660 18.7 |
630 17.8 |
787 22.3 |
|
300 2070 |
2530 71.6 |
2372 67.2 |
2222 62.9 |
2081 58.9 |
1946 55.1 |
1817 51.5 |
1691 47.9 |
1577 44.7 |
|
400 2760 |
3389 96.0 |
3227 91.4 |
3075 87.1 |
2929 82.9 |
2788 78.9 |
2652 75.1 |
2310 65.4 |
||
500 3445 |
4276 121.1 |
4113 116.5 |
3957 112.0 |
3807 107.8 |
3662 103.7 |
2934 83.1 |
|||
600 4135 |
5210 147.5 |
5044 142.8 |
4885 138.3 |
4731 134.0 |
3818 108.1 |
||||
700 4825 |
6168 174.7 |
6001 169.9 |
5840 165.4 |
5051 143.0 |
|||||
800 5515 |
7153 202.6 |
6984 197.8 |
6820 193.1 |
||||||
900 6205 |
8192 232.0 |
8008 226.8 |
|||||||
1000 6895 |
9191 260.2 |
||||||||
Projected Performance based on 2500 ft, gas density .665, temp 68ºF – Flow Rates in mscfd e3m3/day . Dual stage operation. Steady state flow rate. Flow rate reduces with pipeline pressure during evacuation. Contact Compact Compression for applications over 1000 psig |