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The DFW-5.3/3-15 Natural Gas High-efficiency Compressor, manufactured by Bengbu United Compressor (China), is a cutting-edge reciprocating piston compressor designed for reliable and energy-efficient natural gas compression. Tailored for industrial applications, this compressor excels in boosting gas pressure for liquefaction, storage, and process needs, making it a vital asset in LNG production, petrochemical processes, and environmental protection systems.
Key performance metrics set it apart: it handles a processing capacity of 1100Nm³/h with an inlet pressure of 0.3MPa.G (at normal temperature) and delivers an exhaust pressure of 1.5MPa.G, powered by a 90kW main motor. Its compact design—6500 × 3000 × 2500 mm in dimensions and 6T in weight—ensures easy integration into existing systems, while its robust build guarantees long-term operation in demanding environments.
Engineered as a D-type (symmetrical balance), air-cooled, oil-free lubrication compressor, the DFW-5.3/3-15 adopts a two-stage compression, double-acting configuration with modular supply. Critical components are crafted for durability:
· Cylinders: First-stage cylinders use HT250 material, and second-stage cylinders employ QT600-3, ensuring resistance to high pressure and wear.
· Packing System: Polytetrafluoroethylene (PTFE) fillers—known for self-lubrication, heat resistance, and low friction—eliminate the need for oil lubrication, reducing maintenance and preventing gas contamination.
· Valve Arrangement: Axially mounted air valves on the cylinder head optimize gas flow, enhancing compression efficiency.
· High Efficiency & Reliability: The symmetrical balance design minimizes vibration and noise, while the oil-free system reduces downtime and operational costs. Its automation-ready design allows for seamless integration into smart control systems.
· Easy Installation & Maintenance: All main and auxiliary equipment are mounted on a skid, enabling quick transportation, on-site setup, and hassle-free maintenance. Fewer vulnerable parts further lower long-term upkeep needs.
· Customization Flexibility: Non-standard configurations are available, with options for cooling methods (water-cooled, mixed cooling), installation types (fixed, mobile, cabin-type), and drive modes (motor, diesel engine), tailored to specific flow, pressure, and environmental requirements.
Highlight Advantages
 |  |  |  |
| Has high efficiency, strong reliability, and high degree of automation; | Less vulnerable parts, low vibration, low noise, and easy operation and maintenance | The main and auxiliary equipment of the compressor are all installed on the sled, running smoothly and reliably. The overall sled installation is convenient for the transportation and installation of the compressor | The entire machine components are carefully designed |
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 D-type (symmetrical balance type), water-cooled, oil-free lubrication, reciprocating piston type, 2-row 3-stage compression, and the entire unit is supplied in a modular manner.
The compressor crankcase is made of gray cast iron and has four holes of different diameters for installing crosshead slides, bearings, and bearing seats. The lower part of the crankcase can store lubricating oil for the compressor to lubricate; The upper surface of the crankcase has an interface for installing a fuel inlet (breathing port) cover plate; In addition, the crankcase also has spare interfaces such as oil drain port, oil gauge observation port, bearing seat oil injection port, and installation oil temperature measurement port. The oil drain port of the crankcase has been connected to the outside of the compartment and is equipped with a manual ball valve for oil discharge from the crankcase.
The middle body of the compressor is a double middle body structure, ensuring that the middle body space is greater than one stroke, preventing compressor oil from entering the cylinder from the crankcase, thus ensuring that compressor oil does not contaminate the medium. The material of the compressor cylinder is gray cast iron/forged steel, and it adopts an oil-free lubrication design, which does not require oil lubrication. The cylinder head material is gray cast iron/forged steel, and the air valves are arranged axially on the cylinder head.
 |  |
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:
 |  |  |
| Metal cabin | Wooden box | Soundproof cabin |
Project Case
 |  |  |
| 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 | |
| 11 | VF-2.2/（0.5～0.7）-60 | Natural gas | 180 | 6 | 45 | Air-cooled | 6000×2500×2400 | 8000 | |
| 12 | VWF-1.65/(25～35)-50 | Natural gas | 2500 | 5 | 90 | Air-cooled | 4500×2500×2100 | 5500 | |
| 13 | VWF-11/（0.5～2）-14 | Natural gas | 1000 | 1.4 | 160 | Air-cooled | 5200×2000×2200 | 6000 | |
| 14 | VWF-13.6/(0.05～0.2)-6 | Natural gas | 800 | 0.6 | 90 | Air-cooled | 5000×2200×2200 | 6000 | |
| 15 | VWF-8/（0.6～3）-12 | Natural gas | 1900 | 1.2 | 132 | Air-cooled | 5800×2300×2450 | 7800 | |
| 16 | VWF-9/0.05-14 | Natural gas | 500 | 1.4 | 90 | Air-cooled | 3800×2000×1600 | 3500 | |
| 17 | DFW-15.9/（0.4～1）-16 | Natural gas | 1330 | 1.6 | 250 | Mixed cooling | 5000×3400×2000 | 12000 | |
| 18 | VWFD-7.5/(0.5～1)-3 | Natural gas | 20000 | 0.3 | 45 | Mixed cooling | 4000×2300×2300 | 400 | |
| 19 | MFWD-6.0/(25～45)-45 | Natural gas | 20000～36000 | 4.5 | 250 | Mixed cooling | 6500×3000×3200 | 17000 | |
| 20 | DW-2.8/(16～25)-50 | Natural gas | 2500 | 5.0 | 160 | Water-cooled | 4300×3000×1600 | 7000 | |
| 21 | DW-3/15-52 | Natural gas | 2550 | 5.2 | 185 | Water-cooled | 3800×3400×2300 | 9000 | |
| 22 | DW-4.9/(1.5～2.5)-22 | Natural gas | 700 | 2.2 | 110 | Water-cooled | 3800×2700×1800 | 6000 | |
| 23 | DW-6.9/（7～15）-20 | Natural gas | 4000 | 2.0 | 160 | Water-cooled | 3600×2300×1600 | 4500 | |
| 24 | DW-1.92/2.5-22 | Natural gas | 320 | 2.2 | 45 | Water-cooled | 3200×3000×1700 | 3000 | |
| 25 | DW-7.6/1.5-25 | Natural gas | 1000 | 2.5 | 160 | Water-cooled | 5200×3200×2200 | 10000 | |
| 26 | DWD-8/4-10 | Natural gas | 2100 | 1.0 | 110 | Water-cooled | 5800×3300×2300 | 8800 | |
| 27 | MW-19.2/(1～17)-(17～25) | Natural gas | 2000 | 1.7～2.5 | 400 | Water-cooled | 7200×3600×2100 | 21000 | |
| 28 | VW-8.4/(2～4)-20 | Natural gas | 1500 | 2 | 185 | Water-cooled | 5500×2200×2700 | 6000 | |
| 29 | VW-9. 1/(0.05～0. 1)-5型 | Natural gas | 500 | 0.5 | 55 | Water-cooled | 3500×2200×1800 | 5000 | |
| 30 | ZW-1.6/（35～52）-(39～56) | Natural gas | 4000 | 3.9～5.6 | 37 | Water-cooled | 3200×1700×1800 | 2500 | |
It is specifically designed for natural gas (as indicated by its medium composition of 100% natural gas). For other gases like hydrogen or special industrial gases, explore our Special Gas Compressor series.
Thanks to its low number of vulnerable parts and robust design, routine maintenance (e.g., filter checks, seal inspections) is needed every 3,000-5,000 operating hours. The oil-free system eliminates the need for frequent lubricant replacements.
Yes, the compressor includes patented components such as the piston rod thread protective sleeve (ZL 2017 2 1907021.7) and piston ring support device (ZL 2018 2 0294776.2), ensuring compliance with global quality standards.
It can be transported via sea, air, or land, with packaging choices including metal cabins, wooden boxes, or soundproof cabins to protect against transit damage.
The DFW-5.3/3-15 Natural Gas High-efficiency Compressor combines power, durability, and flexibility, making it a top choice for industrial gas compression needs. Contact us for tailored solutions or further technical details.
The DFW-5.3/3-15 Natural Gas High-efficiency Compressor, manufactured by Bengbu United Compressor (China), is a cutting-edge reciprocating piston compressor designed for reliable and energy-efficient natural gas compression. Tailored for industrial applications, this compressor excels in boosting gas pressure for liquefaction, storage, and process needs, making it a vital asset in LNG production, petrochemical processes, and environmental protection systems.
Key performance metrics set it apart: it handles a processing capacity of 1100Nm³/h with an inlet pressure of 0.3MPa.G (at normal temperature) and delivers an exhaust pressure of 1.5MPa.G, powered by a 90kW main motor. Its compact design—6500 × 3000 × 2500 mm in dimensions and 6T in weight—ensures easy integration into existing systems, while its robust build guarantees long-term operation in demanding environments.
Engineered as a D-type (symmetrical balance), air-cooled, oil-free lubrication compressor, the DFW-5.3/3-15 adopts a two-stage compression, double-acting configuration with modular supply. Critical components are crafted for durability:
· Cylinders: First-stage cylinders use HT250 material, and second-stage cylinders employ QT600-3, ensuring resistance to high pressure and wear.
· Packing System: Polytetrafluoroethylene (PTFE) fillers—known for self-lubrication, heat resistance, and low friction—eliminate the need for oil lubrication, reducing maintenance and preventing gas contamination.
· Valve Arrangement: Axially mounted air valves on the cylinder head optimize gas flow, enhancing compression efficiency.
· High Efficiency & Reliability: The symmetrical balance design minimizes vibration and noise, while the oil-free system reduces downtime and operational costs. Its automation-ready design allows for seamless integration into smart control systems.
· Easy Installation & Maintenance: All main and auxiliary equipment are mounted on a skid, enabling quick transportation, on-site setup, and hassle-free maintenance. Fewer vulnerable parts further lower long-term upkeep needs.
· Customization Flexibility: Non-standard configurations are available, with options for cooling methods (water-cooled, mixed cooling), installation types (fixed, mobile, cabin-type), and drive modes (motor, diesel engine), tailored to specific flow, pressure, and environmental requirements.
Highlight Advantages
| | | |
| Has high efficiency, strong reliability, and high degree of automation; | Less vulnerable parts, low vibration, low noise, and easy operation and maintenance | The main and auxiliary equipment of the compressor are all installed on the sled, running smoothly and reliably. The overall sled installation is convenient for the transportation and installation of the compressor | The entire machine components are carefully designed |
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 D-type (symmetrical balance type), water-cooled, oil-free lubrication, reciprocating piston type, 2-row 3-stage compression, and the entire unit is supplied in a modular manner.
The compressor crankcase is made of gray cast iron and has four holes of different diameters for installing crosshead slides, bearings, and bearing seats. The lower part of the crankcase can store lubricating oil for the compressor to lubricate; The upper surface of the crankcase has an interface for installing a fuel inlet (breathing port) cover plate; In addition, the crankcase also has spare interfaces such as oil drain port, oil gauge observation port, bearing seat oil injection port, and installation oil temperature measurement port. The oil drain port of the crankcase has been connected to the outside of the compartment and is equipped with a manual ball valve for oil discharge from the crankcase.
The middle body of the compressor is a double middle body structure, ensuring that the middle body space is greater than one stroke, preventing compressor oil from entering the cylinder from the crankcase, thus ensuring that compressor oil does not contaminate the medium. The material of the compressor cylinder is gray cast iron/forged steel, and it adopts an oil-free lubrication design, which does not require oil lubrication. The cylinder head material is gray cast iron/forged steel, and the air valves are arranged axially on the cylinder head.
| |
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:
| | |
| Metal cabin | Wooden box | Soundproof cabin |
Project Case
| | |
| 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 | |
| 11 | VF-2.2/（0.5～0.7）-60 | Natural gas | 180 | 6 | 45 | Air-cooled | 6000×2500×2400 | 8000 | |
| 12 | VWF-1.65/(25～35)-50 | Natural gas | 2500 | 5 | 90 | Air-cooled | 4500×2500×2100 | 5500 | |
| 13 | VWF-11/（0.5～2）-14 | Natural gas | 1000 | 1.4 | 160 | Air-cooled | 5200×2000×2200 | 6000 | |
| 14 | VWF-13.6/(0.05～0.2)-6 | Natural gas | 800 | 0.6 | 90 | Air-cooled | 5000×2200×2200 | 6000 | |
| 15 | VWF-8/（0.6～3）-12 | Natural gas | 1900 | 1.2 | 132 | Air-cooled | 5800×2300×2450 | 7800 | |
| 16 | VWF-9/0.05-14 | Natural gas | 500 | 1.4 | 90 | Air-cooled | 3800×2000×1600 | 3500 | |
| 17 | DFW-15.9/（0.4～1）-16 | Natural gas | 1330 | 1.6 | 250 | Mixed cooling | 5000×3400×2000 | 12000 | |
| 18 | VWFD-7.5/(0.5～1)-3 | Natural gas | 20000 | 0.3 | 45 | Mixed cooling | 4000×2300×2300 | 400 | |
| 19 | MFWD-6.0/(25～45)-45 | Natural gas | 20000～36000 | 4.5 | 250 | Mixed cooling | 6500×3000×3200 | 17000 | |
| 20 | DW-2.8/(16～25)-50 | Natural gas | 2500 | 5.0 | 160 | Water-cooled | 4300×3000×1600 | 7000 | |
| 21 | DW-3/15-52 | Natural gas | 2550 | 5.2 | 185 | Water-cooled | 3800×3400×2300 | 9000 | |
| 22 | DW-4.9/(1.5～2.5)-22 | Natural gas | 700 | 2.2 | 110 | Water-cooled | 3800×2700×1800 | 6000 | |
| 23 | DW-6.9/（7～15）-20 | Natural gas | 4000 | 2.0 | 160 | Water-cooled | 3600×2300×1600 | 4500 | |
| 24 | DW-1.92/2.5-22 | Natural gas | 320 | 2.2 | 45 | Water-cooled | 3200×3000×1700 | 3000 | |
| 25 | DW-7.6/1.5-25 | Natural gas | 1000 | 2.5 | 160 | Water-cooled | 5200×3200×2200 | 10000 | |
| 26 | DWD-8/4-10 | Natural gas | 2100 | 1.0 | 110 | Water-cooled | 5800×3300×2300 | 8800 | |
| 27 | MW-19.2/(1～17)-(17～25) | Natural gas | 2000 | 1.7～2.5 | 400 | Water-cooled | 7200×3600×2100 | 21000 | |
| 28 | VW-8.4/(2～4)-20 | Natural gas | 1500 | 2 | 185 | Water-cooled | 5500×2200×2700 | 6000 | |
| 29 | VW-9. 1/(0.05～0. 1)-5型 | Natural gas | 500 | 0.5 | 55 | Water-cooled | 3500×2200×1800 | 5000 | |
| 30 | ZW-1.6/（35～52）-(39～56) | Natural gas | 4000 | 3.9～5.6 | 37 | Water-cooled | 3200×1700×1800 | 2500 | |
It is specifically designed for natural gas (as indicated by its medium composition of 100% natural gas). For other gases like hydrogen or special industrial gases, explore our Special Gas Compressor series.
Thanks to its low number of vulnerable parts and robust design, routine maintenance (e.g., filter checks, seal inspections) is needed every 3,000-5,000 operating hours. The oil-free system eliminates the need for frequent lubricant replacements.
Yes, the compressor includes patented components such as the piston rod thread protective sleeve (ZL 2017 2 1907021.7) and piston ring support device (ZL 2018 2 0294776.2), ensuring compliance with global quality standards.
It can be transported via sea, air, or land, with packaging choices including metal cabins, wooden boxes, or soundproof cabins to protect against transit damage.
The DFW-5.3/3-15 Natural Gas High-efficiency Compressor combines power, durability, and flexibility, making it a top choice for industrial gas compression needs. Contact us for tailored solutions or further technical details.
