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The DFD-1.36/(30~50)-250 Natural Gas Compressor is a cutting-edge product from Bengbu United Compressor, a leading manufacturer in China. Designed for efficient natural gas boosting and transportation, this compressor stands out for its robust performance, versatility, and customizability.
Engineered to handle desulfurized and dehydrated natural gas, it delivers a remarkable processing capacity of 100,000 Nm³/d (approximately 4,166 Nm³/h), making it ideal for large-scale pipeline networks. With an inlet pressure of 3~5 MPa.G and exhaust pressure of 25 MPa.G, it ensures stable gas flow even in high-demand scenarios. Powered by a 315 kW main motor, the unit balances power and energy efficiency, while its compact dimensions (approximately 8500 × 3700 × 4100 mm) and weight (around 22T) facilitate flexible installation in various industrial settings.
Beyond natural gas pipeline boosting, this compressor finds applications in diverse industries: stirring in pharmaceutical and brewing sectors, pressurized transportation of chemical gases, bottle blow molding in the food industry, and dust removal for mechanical parts. Its adaptability and high performance make it a reliable choice for both standard and specialized gas handling needs.
The DFD-1.36/(30~50)-250 adopts a D-type symmetrical balanced structure, combined with water cooling and oil-free lubrication technology. This design eliminates the risk of medium contamination by preventing compressor oil from entering the cylinder, ensuring the purity of processed natural gas. The reciprocating piston mechanism with 2-row, 3-stage compression enhances compression efficiency, while the modular supply approach simplifies on-site assembly and integration.
The crankcase, crafted from gray cast iron, features multiple interfaces for lubrication, oil drainage, and temperature monitoring, ensuring smooth operation and easy maintenance. The double middle body structure, with a space larger than one stroke, further reinforces the oil-free advantage, making it suitable for high-purity gas applications.
Equipped with precision components, the compressor boasts high efficiency and strong operational stability. Its automated control system reduces manual intervention, minimizing human error and improving workflow consistency. The unit is designed with fewer wearing parts, lowering maintenance frequency and operational costs.
Low vibration and noise levels (achieved through optimized structural balancing) make it suitable for both industrial zones and areas with strict noise regulations. Whether operating at full load or variable conditions, the compressor maintains consistent performance, ensuring uninterrupted gas supply.
All main and auxiliary equipment are integrated into a skid-mounted design, streamlining transportation and on-site installation. This skid-mounted structure eliminates the need for complex on-site assembly, reducing setup time and labor costs.
Daily maintenance is simplified by accessible components and clear inspection ports. The crankcase’s external oil drain valve and temperature measurement interfaces allow for quick checks and oil changes, ensuring minimal downtime during routine upkeep.
Recognizing diverse industrial needs, the DFD-1.36/(30~50)-250 offers extensive customization. Customers can choose from various structural forms (D-type, M-type, S-type, W-type, V-type, Z-type), cooling methods (water-cooled, air-cooled, mixed cooling), and installation types (fixed, mobile, skid-mounted, cabin-type).
Drive options include motor or diesel engine, adapting to different power supply conditions. Packaging solutions (metal cabin, wooden box, soundproof cabin) and transportation modes (sea, air, land) are also tailored to meet specific logistics requirements, ensuring the product reaches its destination in optimal condition.
Application Area
Mainly used for boosting and transporting natural gas that flows into the pipeline network It can also be used for stirring in the pharmaceutical and brewing industries, pressurized transportation of gases in the chemical industry, blow molding of bottles in the food industry, and dust removal of parts in the machine manufacturing industry.
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 （G) | Motor power (kW) | Cooling method | Overall dimensions (mm) | Weights (kg) |
| 1 | VF（D）-0.32/(30-200)-250 | Natural gas | 1500 | 25 | 75 | Air-cooled | 5538*2350*2438 | 9.5 |
| 2 | VF(D)-0.26/(30-200)-250 | Natural gas | 1000 | 25 | 55 | 5538*2350*2438 | 9.5 | |
| 3 | ZFD-0. 1/(30-200)-250 | Natural gas | 500 | 25 | 37 | 6500*2350*2450 | 5.5 | |
| 4 | DFD-3[0.28]/(2-4)[25-200]-250 | Natural gas | 1300 | 25 | 75 | 4050*3450*2100 | 12.5 | |
| 5 | MF-4/(7-11)-250 | Natural gas | 1900-2880 | ~ | 355 | Air-cooled or water-cooled | 6250*3200*3400 | 18 |
| 6 | DF-2/(10-15)-250 | Natural gas | 1320-1920 | ~ | 250 | 6000*3200*3400 | 16 | |
| 7 | MF-3.2/(8-16)-250 | Natural gas | 1700-3260 | ~ | 355 | 6250*3200*3400 | 18 | |
| 8 | MF-2.5/(14-25)-250 | Natural gas | 2250-3900 | ~ | 355 | 6450*3200*3400 | 20 | |
| 9 | DF-1.55/(15-25)-250 | Natural gas | 1500-2400 | ~ | 280 | 600*3200*3400 | 16 | |
| 10 | DF-1.45/(20-35)-250 | Natural gas | 1800-3100 | ~ | 280 | 6050*3200*3400 | 16 | |
| 11 | MF-2/(20-30)-250 | Natural gas | 2500-3700 | ~ | 355 | 6250*3200*3400 | 20 | |
| 12 | MF-1.8/(25-40)-250 | Natural gas | 2800-4400 | ~ | 355 | 6250*3200*3400 | 18 | |
| 13 | MF-1.35/(30-45)-250 | Natural gas | 2500-3700 | ~ | 315 | 6000*3200*3400 | 18 | |
| 14 | DF-1.3/(8-16)-250 | Natural gas | 700-1320 | ~ | 160 | 6000*3200*3400 | 18 | |
| 15 | MF-1.5/(40-60)-250 | Natural gas | 3700-5500 | ~ | 355 | 6250*3200*3400 | 16 | |
| 16 | MF-1.3/(50-85)-250 | Natural gas | 3900-6700 | ~ | 355 | 6250*3200*3400 | 18 | |
| 17 | W-5.6/0.5-250 | Natural gas | 500 | 25 | 160 | Water-cooled | 5000*2300*2200 | 12 |
| 18 | DF-4.7/(1.5-2)-250 | Natural gas | 700-840 | 25 | 185 | Air-cooled | 6000*3200*3400 | 16 |
| 19 | W-3.6/(1.5-3)-250 | Natural gas | 540-860 | 25 | 160 | Water-cooled | 6200*2200*2200 | 12 |
| 20 | DF-3.85/(2-4)-250 | Natural gas | 690-1150 | 25 | 185 | Air-cooled or water-cooled | 6000*3200*3400 | 16 |
| 21 | MF-5/(2-4)-250 | Natural gas | 900-1500 | 25 | 280 | 6250*3200*3400 | 18 | |
| 22 | MF-7.2/(3-4)-250 | Natural gas | 1700-2160 | 25 | 355 | 6800*3200*3400 | 20 | |
| 23 | DF-2.86/(2-6)-250 | Natural gas | 510~ 1200 | 25 | 185 | 6000*3200*3400 | 16 | |
| 24 | MF-4/(5-8)-250 | Natural gas | 1400-2150 | 25 | 315 | 6250*3200*3400 | 18 | |
| 25 | DF-1.95/(6-12)-250 | Natural gas | 820-1520 | 25 | 220 | 6000*3200*3400 | 16 | |
| 26 | DF-1.6/(8-16)-250 | Natural gas | 860-1630 | 25 | 220 | 6000*3200*3400 | 16 | |
| 27 | DF-0.58/(15-25)-250 | Natural gas | 550-900 | 25 | 90 | Air-cooled | 6000*3200*3400 | 16 |
Project Case
 |  |  |
| Ukraine Project | Alibek oilfield in Southern Kazakhstan | Ningxia Zhongneng new materials engineering |
It is primarily designed for desulfurized and dehydrated natural gas. However, its oil-free lubrication and high-purity design make it suitable for other clean gases in industries like chemicals and food processing, with customization available for specific medium requirements.
The standard processing capacity is 100,000 Nm³/d (approximately 4,166 Nm³/h). For projects with different flow needs, customized versions can be developed to match specific throughput requirements, ranging from smaller to larger capacities.
Yes. While the standard model operates with an inlet pressure of 3~5 MPa.G and exhaust pressure of 25 MPa.G, it can be modified to handle varying pressure ranges (e.g., 2~6 MPa.G inlet) based on customer specifications, ensuring compatibility with diverse pipeline systems.
The DFD-1.36/(30~50)-250 Natural Gas Compressor is a cutting-edge product from Bengbu United Compressor, a leading manufacturer in China. Designed for efficient natural gas boosting and transportation, this compressor stands out for its robust performance, versatility, and customizability.
Engineered to handle desulfurized and dehydrated natural gas, it delivers a remarkable processing capacity of 100,000 Nm³/d (approximately 4,166 Nm³/h), making it ideal for large-scale pipeline networks. With an inlet pressure of 3~5 MPa.G and exhaust pressure of 25 MPa.G, it ensures stable gas flow even in high-demand scenarios. Powered by a 315 kW main motor, the unit balances power and energy efficiency, while its compact dimensions (approximately 8500 × 3700 × 4100 mm) and weight (around 22T) facilitate flexible installation in various industrial settings.
Beyond natural gas pipeline boosting, this compressor finds applications in diverse industries: stirring in pharmaceutical and brewing sectors, pressurized transportation of chemical gases, bottle blow molding in the food industry, and dust removal for mechanical parts. Its adaptability and high performance make it a reliable choice for both standard and specialized gas handling needs.
The DFD-1.36/(30~50)-250 adopts a D-type symmetrical balanced structure, combined with water cooling and oil-free lubrication technology. This design eliminates the risk of medium contamination by preventing compressor oil from entering the cylinder, ensuring the purity of processed natural gas. The reciprocating piston mechanism with 2-row, 3-stage compression enhances compression efficiency, while the modular supply approach simplifies on-site assembly and integration.
The crankcase, crafted from gray cast iron, features multiple interfaces for lubrication, oil drainage, and temperature monitoring, ensuring smooth operation and easy maintenance. The double middle body structure, with a space larger than one stroke, further reinforces the oil-free advantage, making it suitable for high-purity gas applications.
Equipped with precision components, the compressor boasts high efficiency and strong operational stability. Its automated control system reduces manual intervention, minimizing human error and improving workflow consistency. The unit is designed with fewer wearing parts, lowering maintenance frequency and operational costs.
Low vibration and noise levels (achieved through optimized structural balancing) make it suitable for both industrial zones and areas with strict noise regulations. Whether operating at full load or variable conditions, the compressor maintains consistent performance, ensuring uninterrupted gas supply.
All main and auxiliary equipment are integrated into a skid-mounted design, streamlining transportation and on-site installation. This skid-mounted structure eliminates the need for complex on-site assembly, reducing setup time and labor costs.
Daily maintenance is simplified by accessible components and clear inspection ports. The crankcase’s external oil drain valve and temperature measurement interfaces allow for quick checks and oil changes, ensuring minimal downtime during routine upkeep.
Recognizing diverse industrial needs, the DFD-1.36/(30~50)-250 offers extensive customization. Customers can choose from various structural forms (D-type, M-type, S-type, W-type, V-type, Z-type), cooling methods (water-cooled, air-cooled, mixed cooling), and installation types (fixed, mobile, skid-mounted, cabin-type).
Drive options include motor or diesel engine, adapting to different power supply conditions. Packaging solutions (metal cabin, wooden box, soundproof cabin) and transportation modes (sea, air, land) are also tailored to meet specific logistics requirements, ensuring the product reaches its destination in optimal condition.
Application Area
Mainly used for boosting and transporting natural gas that flows into the pipeline network It can also be used for stirring in the pharmaceutical and brewing industries, pressurized transportation of gases in the chemical industry, blow molding of bottles in the food industry, and dust removal of parts in the machine manufacturing industry.
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 （G) | Motor power (kW) | Cooling method | Overall dimensions (mm) | Weights (kg) |
| 1 | VF（D）-0.32/(30-200)-250 | Natural gas | 1500 | 25 | 75 | Air-cooled | 5538*2350*2438 | 9.5 |
| 2 | VF(D)-0.26/(30-200)-250 | Natural gas | 1000 | 25 | 55 | 5538*2350*2438 | 9.5 | |
| 3 | ZFD-0. 1/(30-200)-250 | Natural gas | 500 | 25 | 37 | 6500*2350*2450 | 5.5 | |
| 4 | DFD-3[0.28]/(2-4)[25-200]-250 | Natural gas | 1300 | 25 | 75 | 4050*3450*2100 | 12.5 | |
| 5 | MF-4/(7-11)-250 | Natural gas | 1900-2880 | ~ | 355 | Air-cooled or water-cooled | 6250*3200*3400 | 18 |
| 6 | DF-2/(10-15)-250 | Natural gas | 1320-1920 | ~ | 250 | 6000*3200*3400 | 16 | |
| 7 | MF-3.2/(8-16)-250 | Natural gas | 1700-3260 | ~ | 355 | 6250*3200*3400 | 18 | |
| 8 | MF-2.5/(14-25)-250 | Natural gas | 2250-3900 | ~ | 355 | 6450*3200*3400 | 20 | |
| 9 | DF-1.55/(15-25)-250 | Natural gas | 1500-2400 | ~ | 280 | 600*3200*3400 | 16 | |
| 10 | DF-1.45/(20-35)-250 | Natural gas | 1800-3100 | ~ | 280 | 6050*3200*3400 | 16 | |
| 11 | MF-2/(20-30)-250 | Natural gas | 2500-3700 | ~ | 355 | 6250*3200*3400 | 20 | |
| 12 | MF-1.8/(25-40)-250 | Natural gas | 2800-4400 | ~ | 355 | 6250*3200*3400 | 18 | |
| 13 | MF-1.35/(30-45)-250 | Natural gas | 2500-3700 | ~ | 315 | 6000*3200*3400 | 18 | |
| 14 | DF-1.3/(8-16)-250 | Natural gas | 700-1320 | ~ | 160 | 6000*3200*3400 | 18 | |
| 15 | MF-1.5/(40-60)-250 | Natural gas | 3700-5500 | ~ | 355 | 6250*3200*3400 | 16 | |
| 16 | MF-1.3/(50-85)-250 | Natural gas | 3900-6700 | ~ | 355 | 6250*3200*3400 | 18 | |
| 17 | W-5.6/0.5-250 | Natural gas | 500 | 25 | 160 | Water-cooled | 5000*2300*2200 | 12 |
| 18 | DF-4.7/(1.5-2)-250 | Natural gas | 700-840 | 25 | 185 | Air-cooled | 6000*3200*3400 | 16 |
| 19 | W-3.6/(1.5-3)-250 | Natural gas | 540-860 | 25 | 160 | Water-cooled | 6200*2200*2200 | 12 |
| 20 | DF-3.85/(2-4)-250 | Natural gas | 690-1150 | 25 | 185 | Air-cooled or water-cooled | 6000*3200*3400 | 16 |
| 21 | MF-5/(2-4)-250 | Natural gas | 900-1500 | 25 | 280 | 6250*3200*3400 | 18 | |
| 22 | MF-7.2/(3-4)-250 | Natural gas | 1700-2160 | 25 | 355 | 6800*3200*3400 | 20 | |
| 23 | DF-2.86/(2-6)-250 | Natural gas | 510~ 1200 | 25 | 185 | 6000*3200*3400 | 16 | |
| 24 | MF-4/(5-8)-250 | Natural gas | 1400-2150 | 25 | 315 | 6250*3200*3400 | 18 | |
| 25 | DF-1.95/(6-12)-250 | Natural gas | 820-1520 | 25 | 220 | 6000*3200*3400 | 16 | |
| 26 | DF-1.6/(8-16)-250 | Natural gas | 860-1630 | 25 | 220 | 6000*3200*3400 | 16 | |
| 27 | DF-0.58/(15-25)-250 | Natural gas | 550-900 | 25 | 90 | Air-cooled | 6000*3200*3400 | 16 |
Project Case
| | |
| Ukraine Project | Alibek oilfield in Southern Kazakhstan | Ningxia Zhongneng new materials engineering |
It is primarily designed for desulfurized and dehydrated natural gas. However, its oil-free lubrication and high-purity design make it suitable for other clean gases in industries like chemicals and food processing, with customization available for specific medium requirements.
The standard processing capacity is 100,000 Nm³/d (approximately 4,166 Nm³/h). For projects with different flow needs, customized versions can be developed to match specific throughput requirements, ranging from smaller to larger capacities.
Yes. While the standard model operates with an inlet pressure of 3~5 MPa.G and exhaust pressure of 25 MPa.G, it can be modified to handle varying pressure ranges (e.g., 2~6 MPa.G inlet) based on customer specifications, ensuring compatibility with diverse pipeline systems.
