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The MFWD-6.0/(25~45)-45 Natural Gas Compressor is a reciprocating piston compressor designed for reliable natural gas compression in industrial applications.
It delivers a capacity of 6.0 m³/min, with an inlet pressure of 2.5-4.5 MPa(G) and a discharge pressure of 4.5 MPa(G). The compressor is powered by a 250 kW motor (YBX3-355L3-8).
Suitable for natural gas transmission, gas recovery, gas storage stations, and industrial gas supply. Customized solutions are available for different operating requirements.
M-type four-cylinder structure with oil-free lubrication ensures stable and safe operation.
Wear parts have long service life, reducing maintenance needs. Siemens PLC enables easy control.
All systems are integrated on a skid for easy transport and installation.
Key parts use high-strength materials for long-term reliability.
Highlight Advantages
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| High efficiency with stable and reliable automated operation. | Low vibration, low noise, and reduced maintenance for long-term use. | Skid-mounted integrated design ensures easy transportation and installation | Precision-engineered components ensure durable and consistent performance. |
Patent Certificates
 | A piston rod thread protective sleeve ZL 2017 2 1907021.7 | | A piston ring support device ZL 2018 2 0294776.2 | |
| A range piston ZL 2017 2 190177.0 for symmetrical balanced compressors | | Integrated long short double compartment ZL 2018 2 0294762.0 |
Whole Machine Description
The compressor adopts an M-type symmetrically balanced structure with forced air cooling, oil-free lubrication, and 4-row 1-stage compression, supplied as a skid-mounted unit.
The HT250 cast iron crankcase and middle body ensure structural strength and stable motion guidance, with integrated lubrication, cooling, and maintenance interfaces for reliable operation.
The QT600-3 cylinders and cylinder heads use an oil-free design with PTFE self-lubricating rings, ensuring clean gas output and improved safety.
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The compressor in this picture is a non-standard product. The product provides independent solutions tailored to customers' specific usage requirements (flow rate/purity/pressure, usage environment, main purpose, and customer specific requirements), from design to product customization.
Structural form: D-type/M-type/S-type/W-type/V-type/Z-type
Cooling method: water cooling/air cooling/mixed cooling
Installation form: fixed/mobile/pry mounted/cabin type
Drive mode: motor drive/diesel engine start
Transportation: sea/air/land
Packaging:
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| Metal cabin | Wooden box | Soundproof cabin |
Project Case
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| Lanzhou petrochemical company 240000 tonsyear ethylene production capacity restoration - adding butadiene and 1-butene unloading facilities project | Alibek oilfield in Southern Kazakhstan | Procurement of Molecular Sieve Dehydration, Ethylene Glycol Regeneration and Injection Device, and Fuel Gas Skid in Akimom Gas Field |
Technical Parameter
| No. | Model | Medium | Flow rate (Nm3/h) | Exhaust pressure MPa | Motor power (kW) | Cooling method | Overall dimensions (mm) | Weights (kg) | |
| 1 | VW-3.5/1-18 | Natural gas | 420 | 1.8 | 55 | Closed water coole | d 4000×1800×2200 | 5000 | |
| 2 | DF-0.4/（2～6）-250 | Natural gas | 160 | 25 | 30 | Air-cooled | 2800×1800×1500 | 3500 | |
| 3 | DFD-1.36/(30～50)-250 | Natural gas | 4167 | 25 | 315 | Air-cooled | 8500×3700×4100 | 22000 | |
| 4 | DFW-3.7/(8～12)-52 | Natural gas | 2083 | 5.2 | 200 | Air-cooled | 6000×3400×2300 | 15000 | |
| 5 | DFW-5.3/3-15 | Natural gas | 1100 | 1.5 | 90 | Air-cooled | 6500×3000×2500 | 6000 | |
| 6 | DFWD-5.7/(0. 1～0.5)-40 | Natural gas | 75～365 | 4 | 90 | Air-cooled | 7000×3400×2500 | 100000 | |
| 7 | DFWD-5/(1.5～3.6)-14.2 | Natural gas | 700 | 1.42 | 90 | Air-cooled | 5000×3200×2200 | 6500 | |
| 8 | DW-9/3-35 | Natural gas | 2000 | 3.5 | 250 | Air-cooled | 4800×4000×2000 | 13000 | |
| 9 | MFWD-7/(10～30)-35 | Natural gas | 6250 | 3.5 | 315 | Air-cooled | 6300×3200×3200 | 16000 | |
| 10 | VF-1.4/(5～7)-250 | Natural gas | 500 | 25 | 110 | Air-cooled | 5000×2400×2100 | 6800 | |
What is the lubrication method adopted by the compressor, and what are the requirements for lubricating oil?
The compressor uses a combined lubrication system, with pressure lubrication for moving parts and PTFE self-lubrication for cylinders and packing. Suitable mechanical lubricating oils are selected based on ambient temperature, with regular oil change maintenance required.
What protection functions does the control system have?
The system is equipped with a Siemens Smart-200 PLC and explosion-proof control cabinet, providing protection for motor overload, pressure, and temperature. It supports alarm and automatic shutdown for abnormal operating conditions.
What is the warranty period and after-sales service?
The compressor comes with a 12-month warranty or 18 months from delivery (whichever comes first), plus lifetime after-sales support. Emergency service response is provided for operational issues.
