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The VW-9.1/(0.05~0.1)-5 Natural Gas Compressor, manufactured by Bengbu United Compressor, is a cutting-edge solution designed for efficient natural gas compression across diverse industrial scenarios. Tailored to handle complex gas compositions, this compressor operates seamlessly with natural gas containing saturated water, dichloromethane, and 3.4% chlorinated hydrocarbons, with a chloride ion concentration of less than 300ppm—ensuring stability even in corrosive environments.
Boasting a processing capacity of 500Nm³/h, the compressor excels in both low-pressure intake and reliable discharge. It accepts gas at an inlet pressure of 5~10KPa.G and inlet temperature of 25-40℃, compressing it to an exhaust pressure of 0.5MPa.G with the power of a 55kW main motor. Its compact design—overall dimensions of ~3500 × 2200 × 1800 mm and weight of ~5T—makes it suitable for space-constrained sites, while its robust build guarantees long-term performance.
Ideal for oil and gas field development, the compressor enhances well productivity by supporting natural gas transportation, oil-gas separation, wellhead pressurization, and recovery of low-pressure associated gas—critical for unconventional gas extraction such as shale gas and coalbed methane. It also plays a key role in the LNG industry, facilitating pre-liquefaction boosting, storage peak shaving, and post-vaporization export pressurization, including BOG (boil-off gas) recovery at LNG terminals.
The VW-9.1/(0.05~0.1)-5 Natural Gas Compressor stands out for its enhanced efficiency and robust reliability, minimizing energy consumption while maximizing output. Its advanced automation system reduces manual intervention, lowering operational errors and labor costs. With fewer vulnerable components, it ensures stable operation with minimal downtime, making it a cost-effective choice for long-term projects.
Low vibration and noise levels further enhance its appeal, ensuring compliance with environmental standards and improving workplace safety. Maintenance is streamlined thanks to its user-friendly design, reducing the need for frequent repairs and extending service life.
Engineered as a V-type, water-cooled, oil-free lubrication reciprocating piston compressor, this model features a dual-column, two-stage compression design integrated into a skid-mounted unit—simplifying transportation and on-site installation.
A key structural innovation is its double intermediate body, which prevents compressor oil from contaminating the gas medium by ensuring sufficient space (greater than one stroke) between components. The cylinder, crafted from corrosion-resistant cast iron, withstands harsh gas compositions (including chlorinated hydrocarbons with <300ppm chloride ions), while axially arranged valves optimize gas flow and compression efficiency.
Bengbu United Compressor offers tailored solutions for the VW-9.1/(0.05~0.1)-5 to meet specific project needs. Customization options include:
· Structural forms: D-type, M-type, S-type, W-type, V-type, or Z-type, adapting to spatial constraints.
· Cooling methods: Water-cooled (standard for this model), air-cooled, or mixed cooling, based on environmental conditions.
· Installation types: Fixed, mobile, skid-mounted (standard), or cabin-type, ensuring flexibility across sites.
· Drive modes: Motor-driven (standard with 55kW power) or diesel engine-driven, matching power supply availability.
Application Area
Natural gas compressors are used in oil and gas field development to increase gas well productivity, including natural gas transportation, oil and gas separation, wellhead pressurization, and other processes. For example, by using a compressor to boost and recover low-pressure associated gas, resource waste can be reduced. In addition, compressors are also used for gas well production and gathering in unconventional natural gas extraction such as shale gas and coalbed methane
In LNG production, storage, and transportation, compressors are used for boosting natural gas before liquefaction, storage peak shaving, and export boosting after gasification. For example, the BOG (flash gas) recovery at LNG receiving stations relies on compressor processing.
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 Certificate
 | 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 a V-shaped (angle type), water-cooled, oil-free lubrication, reciprocating piston type, two column, two-stage compression, double acting, and the entire unit is supplied as a sled. 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 compressor cylinder is made of corrosion-resistant cast iron material and adopts an oil-free lubrication design, which does not require oil lubrication. The air valve is arranged axially inside the cylinder.
 |  |
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 |
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 widely used in oil and gas field development (e.g., shale gas, coalbed methane extraction) for boosting well productivity, gas transportation, and low-pressure associated gas recovery. In the LNG sector, it supports pre-liquefaction pressurization, storage peak shaving, and BOG recovery at terminals.
The VW-9.1/(0.05~0.1)-5 handles a processing capacity of 500Nm³/h. It operates with an inlet pressure of 5~10KPa.G (gauge) and delivers gas at an exhaust pressure of 0.5MPa.G, making it ideal for low-inlet, medium-discharge pressure scenarios.
The oil-free lubrication system eliminates the risk of oil contamination in the natural gas medium, critical for applications requiring high-purity gas (e.g., LNG production). It also reduces maintenance needs related to oil filtration and replacement, lowering long-term operational costs.
Yes, the compressor has been deployed in international projects, including:
· Akimom Gas Field (Ukraine): Used in molecular sieve dehydration and fuel gas skid systems.
· Alibek Oilfield (Kazakhstan): Integrated into gas processing workflows.
· Ningxia Zhongneng New Materials Project (China): Supporting industrial gas compression needs.
It is backed by multiple patents, including a piston rod thread protective sleeve (ZL 2017 2 1907021.7) and a piston ring support device (ZL 2018 2 0294776.2), ensuring compliance with global quality and safety norms for gas compression equipment.
The VW-9.1/(0.05~0.1)-5 Natural Gas Compressor combines efficiency, durability, and flexibility, making it a trusted choice for gas processing, oilfield operations, and LNG infrastructure worldwide. Contact us to discuss how this solution can optimize your gas compression needs.
The VW-9.1/(0.05~0.1)-5 Natural Gas Compressor, manufactured by Bengbu United Compressor, is a cutting-edge solution designed for efficient natural gas compression across diverse industrial scenarios. Tailored to handle complex gas compositions, this compressor operates seamlessly with natural gas containing saturated water, dichloromethane, and 3.4% chlorinated hydrocarbons, with a chloride ion concentration of less than 300ppm—ensuring stability even in corrosive environments.
Boasting a processing capacity of 500Nm³/h, the compressor excels in both low-pressure intake and reliable discharge. It accepts gas at an inlet pressure of 5~10KPa.G and inlet temperature of 25-40℃, compressing it to an exhaust pressure of 0.5MPa.G with the power of a 55kW main motor. Its compact design—overall dimensions of ~3500 × 2200 × 1800 mm and weight of ~5T—makes it suitable for space-constrained sites, while its robust build guarantees long-term performance.
Ideal for oil and gas field development, the compressor enhances well productivity by supporting natural gas transportation, oil-gas separation, wellhead pressurization, and recovery of low-pressure associated gas—critical for unconventional gas extraction such as shale gas and coalbed methane. It also plays a key role in the LNG industry, facilitating pre-liquefaction boosting, storage peak shaving, and post-vaporization export pressurization, including BOG (boil-off gas) recovery at LNG terminals.
The VW-9.1/(0.05~0.1)-5 Natural Gas Compressor stands out for its enhanced efficiency and robust reliability, minimizing energy consumption while maximizing output. Its advanced automation system reduces manual intervention, lowering operational errors and labor costs. With fewer vulnerable components, it ensures stable operation with minimal downtime, making it a cost-effective choice for long-term projects.
Low vibration and noise levels further enhance its appeal, ensuring compliance with environmental standards and improving workplace safety. Maintenance is streamlined thanks to its user-friendly design, reducing the need for frequent repairs and extending service life.
Engineered as a V-type, water-cooled, oil-free lubrication reciprocating piston compressor, this model features a dual-column, two-stage compression design integrated into a skid-mounted unit—simplifying transportation and on-site installation.
A key structural innovation is its double intermediate body, which prevents compressor oil from contaminating the gas medium by ensuring sufficient space (greater than one stroke) between components. The cylinder, crafted from corrosion-resistant cast iron, withstands harsh gas compositions (including chlorinated hydrocarbons with <300ppm chloride ions), while axially arranged valves optimize gas flow and compression efficiency.
Bengbu United Compressor offers tailored solutions for the VW-9.1/(0.05~0.1)-5 to meet specific project needs. Customization options include:
· Structural forms: D-type, M-type, S-type, W-type, V-type, or Z-type, adapting to spatial constraints.
· Cooling methods: Water-cooled (standard for this model), air-cooled, or mixed cooling, based on environmental conditions.
· Installation types: Fixed, mobile, skid-mounted (standard), or cabin-type, ensuring flexibility across sites.
· Drive modes: Motor-driven (standard with 55kW power) or diesel engine-driven, matching power supply availability.
Application Area
Natural gas compressors are used in oil and gas field development to increase gas well productivity, including natural gas transportation, oil and gas separation, wellhead pressurization, and other processes. For example, by using a compressor to boost and recover low-pressure associated gas, resource waste can be reduced. In addition, compressors are also used for gas well production and gathering in unconventional natural gas extraction such as shale gas and coalbed methane
In LNG production, storage, and transportation, compressors are used for boosting natural gas before liquefaction, storage peak shaving, and export boosting after gasification. For example, the BOG (flash gas) recovery at LNG receiving stations relies on compressor processing.
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 Certificate
| 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 a V-shaped (angle type), water-cooled, oil-free lubrication, reciprocating piston type, two column, two-stage compression, double acting, and the entire unit is supplied as a sled. 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 compressor cylinder is made of corrosion-resistant cast iron material and adopts an oil-free lubrication design, which does not require oil lubrication. The air valve is arranged axially inside the cylinder.
| |
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 |
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 widely used in oil and gas field development (e.g., shale gas, coalbed methane extraction) for boosting well productivity, gas transportation, and low-pressure associated gas recovery. In the LNG sector, it supports pre-liquefaction pressurization, storage peak shaving, and BOG recovery at terminals.
The VW-9.1/(0.05~0.1)-5 handles a processing capacity of 500Nm³/h. It operates with an inlet pressure of 5~10KPa.G (gauge) and delivers gas at an exhaust pressure of 0.5MPa.G, making it ideal for low-inlet, medium-discharge pressure scenarios.
The oil-free lubrication system eliminates the risk of oil contamination in the natural gas medium, critical for applications requiring high-purity gas (e.g., LNG production). It also reduces maintenance needs related to oil filtration and replacement, lowering long-term operational costs.
Yes, the compressor has been deployed in international projects, including:
· Akimom Gas Field (Ukraine): Used in molecular sieve dehydration and fuel gas skid systems.
· Alibek Oilfield (Kazakhstan): Integrated into gas processing workflows.
· Ningxia Zhongneng New Materials Project (China): Supporting industrial gas compression needs.
It is backed by multiple patents, including a piston rod thread protective sleeve (ZL 2017 2 1907021.7) and a piston ring support device (ZL 2018 2 0294776.2), ensuring compliance with global quality and safety norms for gas compression equipment.
The VW-9.1/(0.05~0.1)-5 Natural Gas Compressor combines efficiency, durability, and flexibility, making it a trusted choice for gas processing, oilfield operations, and LNG infrastructure worldwide. Contact us to discuss how this solution can optimize your gas compression needs.
