Gas composition(mol%): Hydrogen gas
Condition 1:
Flow rate: 600Nm ³/h;
Inlet pressure: 0.07MPa. G;
Inlet temperature: ≤ 40 ℃;
Exhaust pressure: 1.2MPa. G;
Condition 2:
Flow rate: 1000~2500Nm ³/h;
Inlet pressure: 0.5~1.2MPa. G;
Inlet temperature: ≤ 40 ℃;
Exhaust pressure: 1.2MPa. G;
Main motor power: 90kW
Overall dimensions of the machine: ~5000 × 3200 × 2100 mm
Whole machine weight: ~8T
| Quantity: | |
|---|---|
Introducing the DW6.74 (3.3)/0.7 (5-12)-12 Hydrogen Compressor, a cutting-edge product engineered by Bengbu United Compressor, a trusted China-based manufacturer specializing in high-performance compression systems. Designed for precision and reliability, this compressor stands out in handling hydrogen gas with exceptional efficiency, making it a top choice for industries requiring high-purity, high-pressure hydrogen handling.
At its core, the DW6.74 (3.3)/0.7 (5-12)-12 operates on a D-type (symmetrical balance) structure, featuring water-cooled, oil-free lubrication, and a reciprocating piston design with 2 rows and 3 stages of compression. It delivers versatile performance across two key operating conditions:
Condition 1: 600 Nm³/h flow rate, 0.07 MPa.G inlet pressure, and 1.2 MPa.G exhaust pressure (inlet temperature ≤ 40℃).
Condition 2: 1000~2500 Nm³/h flow rate, 0.5~1.2 MPa.G inlet pressure, and 1.2 MPa.G exhaust pressure (inlet temperature ≤ 40℃).
Crafted with precision-engineered components, the DW6.74 (3.3)/0.7 (5-12)-12 Hydrogen Compressor offers exceptional efficiency, minimizing energy loss during compression. Its oil-free lubrication system eliminates the risk of medium contamination, critical for maintaining hydrogen purity—essential in sensitive industries like semiconductor manufacturing. The symmetrical balance design reduces vibration and noise, enhancing operational stability and extending service life.
Equipped with a user-friendly interface and low-maintenance design, this compressor reduces downtime and operational costs. It features fewer wearing parts, simplifying routine checks and replacements. The crankcase, made of high-quality gray cast iron, integrates essential ports (oil drain, temperature measurement, and lubrication) for streamlined maintenance, ensuring hassle-free upkeep.
The main and auxiliary equipment are fully integrated into a sled-mounted structure, facilitating easy transportation and on-site installation. This modular design saves time and resources during setup, making it ideal for both fixed facilities and temporary projects.
Bengbu United Compressor understands diverse industry needs, offering tailored solutions for:
· Structural forms: D-type, M-type, S-type, W-type, V-type, Z-type.
· Cooling methods: Water-cooled, air-cooled, or mixed cooling.
· Installation types: Fixed, mobile, sled-mounted, or cabin-type.
· Drive modes: Motor-driven or diesel-engine powered.
Application Area
Hydrogen energy storage technology converts electrical energy into hydrogen gas through a compressor for storage, and then converts it into electrical energy for use. The compressor needs to meet the requirements of high pressure, high efficiency, and safety, and is applied in large-scale energy storage power plants and distributed systems. In semiconductor and fiber optic production, hydrogen compressors provide high-purity hydrogen gas to ensure process stability and product quality.
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 |
Technical Parameter
| No. | Model | Medium | Flow rate (Nm3/h) | Exhaust pressure (MPa.G) | Motor power (kW) | Cooling method | Overall dimensions (mm) | Weights (kg) | |
| 1 | DW-1.6/(8～12)-120 | Hydrogen | 800 | 12 | 160 | Water-cooled | 5800×3000×2300 | 8500 | |
| 2 | DW-1.8/15-30 | Hydrogen | 1500 | 3.0 | 75 | Water-cooled | 3200×3000×1850 | 5800 | |
| 3 | DW-6.74(3.3)/0.7(5～12)-12 | Hydrogen | 600 | 1.2 | 90 | Water-cooled | 5000×3200×2100 | 8000 | |
| 4 | DW-17.9/(4～5)-6.5 | Hydrogen | 1270 | 0.65 | 132 | Water-cooled | 3500×3000×2300 | 8000 | |
| 5 | DW-1.8/15-30 | Hydrogen | 1500 | 3.0 | 75 | Water-cooled | 3200×3000×1850 | 5800 | |
| 6 | DW-9.55/0.03-16 | Hydrogen | 515 | 1.6 | 90 | Water-cooled | 3500×3200×2500 | 6500 | |
| 7 | DW-96.5/（ 15～23 ）-（ 21~ 29） | Hydrogen | 4500 | 2. 1～2.9 | 185 | Water-cooled | 5000×3000×2500 | 12000 | |
| 8 | DW-48 /（ 15～23 ）-（ 21~29） | Hydrogen | 2642～4500 | 2. 1～2.9 | 55 | Water-cooled | 4000×2700×2300 | 6000 | |
| 9 | D-0.57/16-200 | Hydrogen | 500 | 20 | 75 | Water-cooled | 5800×3200×2350 | 9000 | |
| 10 | ZW-0. 18/15-22 | Hydrogen | 150 | 2.2 | 11 | Water-cooled | 2200×1600×1700 | 2000 | |
| 11 | ZW-0.82/(6～8)-20 | Hydrogen | 300 | 2.0 | 22 | Water-cooled | 2500×1500×1750 | 2000 | |
| 12 | W-3/0.1-150 | Hydrogen | 212 | 15 | 55 | Water-cooled | 6000×2700×2100 | 15000 | |
| 13 | MW-7.7/9.8-40 | Hydrogen | 4200 | 4.0 | 355 | Water-cooled | 7500×3600×2000 | 22000 | |
| 14 | MW-25.2/（1.5～1.7）-10 | Hydrogen | 3300 | 1.0 | 315 | Water-cooled | 8000×3000×2200 | 20000 | |
| 15 | PW-0.6/(10～15)-30 | Hydrogen | 0~560 | 3.0 | 30 | Mixed cooling | 2200×1800×1600 | 1800 | |
| 16 | PW-13.7/17-25 | Hydrogen | 820 | 2.5 | 30 | Mixed cooling | 4000×2700×2300 | 6000 | |
| 17 | D-0.26/（28～31）-150 | Hydrogen | 400 | 15 | 45 | Mixed cooling | 3800×3200×1950 | 4800 | |
| 18 | PW-13.7/17-25 | Hydrogen | 820 | 2.5 | 30 | Mixed cooling | 4000×2700×2300 | 6000 | |
| 19 | VW-14.3/7 | Hydrogen | 750 | 0.7 | 110 | Mixed cooling | 4800×2250×2100 | 8000 | |
| 20 | DW-7.6/（4～5.7）-6.5 | Hydrogen | 2000 | 0.65 | 55 | Mixed cooling | 3500×3000×2300 | 6000 | |
Project Case
 |  |  |
| Lanzhou petrochemical company 240000 tonsyear ethylene production capacity restoration - adding butadiene and 1-butene unloading facilities project | Ukraine Project | Zaozhuang CNG compressor project of Chengdu Shenliang Technology Co., Ltd. |
The crankcase and cylinder are made of gray cast iron/forged steel, ensuring durability and resistance to high pressure. The oil-free lubrication system uses materials that prevent hydrogen contamination.
Yes, the DW6.74 (3.3)/0.7 (5-12)-12 Hydrogen Compressor meets global safety and performance standards. 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).
Absolutely. We offer flexible transportation options via sea, air, or land, with packaging choices including metal cabins, wooden boxes, and soundproof cabins to ensure safe delivery.
The oil-free lubrication system eliminates the risk of oil mixing with hydrogen, critical for applications requiring high purity (e.g., semiconductors). It also reduces maintenance needs by avoiding oil-related wear and tear.
Bengbu United Compressor provides comprehensive after-sales service, including installation guidance, maintenance training, and spare parts supply. Our team is reachable via WhatsApp (+8618955218331), email (bblhcompressor@gmail.com), or phone (+86-552-4190082) for prompt assistance.
Engineered for performance, reliability, and versatility, the DW6.74 (3.3)/0.7 (5-12)-12 Hydrogen Compressor is the ideal choice for industries demanding top-tier hydrogen compression solutions. Trust in Bengbu United Compressor’s expertise to power your operations with efficiency and precision.
Introducing the DW6.74 (3.3)/0.7 (5-12)-12 Hydrogen Compressor, a cutting-edge product engineered by Bengbu United Compressor, a trusted China-based manufacturer specializing in high-performance compression systems. Designed for precision and reliability, this compressor stands out in handling hydrogen gas with exceptional efficiency, making it a top choice for industries requiring high-purity, high-pressure hydrogen handling.
At its core, the DW6.74 (3.3)/0.7 (5-12)-12 operates on a D-type (symmetrical balance) structure, featuring water-cooled, oil-free lubrication, and a reciprocating piston design with 2 rows and 3 stages of compression. It delivers versatile performance across two key operating conditions:
Condition 1: 600 Nm³/h flow rate, 0.07 MPa.G inlet pressure, and 1.2 MPa.G exhaust pressure (inlet temperature ≤ 40℃).
Condition 2: 1000~2500 Nm³/h flow rate, 0.5~1.2 MPa.G inlet pressure, and 1.2 MPa.G exhaust pressure (inlet temperature ≤ 40℃).
Crafted with precision-engineered components, the DW6.74 (3.3)/0.7 (5-12)-12 Hydrogen Compressor offers exceptional efficiency, minimizing energy loss during compression. Its oil-free lubrication system eliminates the risk of medium contamination, critical for maintaining hydrogen purity—essential in sensitive industries like semiconductor manufacturing. The symmetrical balance design reduces vibration and noise, enhancing operational stability and extending service life.
Equipped with a user-friendly interface and low-maintenance design, this compressor reduces downtime and operational costs. It features fewer wearing parts, simplifying routine checks and replacements. The crankcase, made of high-quality gray cast iron, integrates essential ports (oil drain, temperature measurement, and lubrication) for streamlined maintenance, ensuring hassle-free upkeep.
The main and auxiliary equipment are fully integrated into a sled-mounted structure, facilitating easy transportation and on-site installation. This modular design saves time and resources during setup, making it ideal for both fixed facilities and temporary projects.
Bengbu United Compressor understands diverse industry needs, offering tailored solutions for:
· Structural forms: D-type, M-type, S-type, W-type, V-type, Z-type.
· Cooling methods: Water-cooled, air-cooled, or mixed cooling.
· Installation types: Fixed, mobile, sled-mounted, or cabin-type.
· Drive modes: Motor-driven or diesel-engine powered.
Application Area
Hydrogen energy storage technology converts electrical energy into hydrogen gas through a compressor for storage, and then converts it into electrical energy for use. The compressor needs to meet the requirements of high pressure, high efficiency, and safety, and is applied in large-scale energy storage power plants and distributed systems. In semiconductor and fiber optic production, hydrogen compressors provide high-purity hydrogen gas to ensure process stability and product quality.
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 |
Technical Parameter
| No. | Model | Medium | Flow rate (Nm3/h) | Exhaust pressure (MPa.G) | Motor power (kW) | Cooling method | Overall dimensions (mm) | Weights (kg) | |
| 1 | DW-1.6/(8～12)-120 | Hydrogen | 800 | 12 | 160 | Water-cooled | 5800×3000×2300 | 8500 | |
| 2 | DW-1.8/15-30 | Hydrogen | 1500 | 3.0 | 75 | Water-cooled | 3200×3000×1850 | 5800 | |
| 3 | DW-6.74(3.3)/0.7(5～12)-12 | Hydrogen | 600 | 1.2 | 90 | Water-cooled | 5000×3200×2100 | 8000 | |
| 4 | DW-17.9/(4～5)-6.5 | Hydrogen | 1270 | 0.65 | 132 | Water-cooled | 3500×3000×2300 | 8000 | |
| 5 | DW-1.8/15-30 | Hydrogen | 1500 | 3.0 | 75 | Water-cooled | 3200×3000×1850 | 5800 | |
| 6 | DW-9.55/0.03-16 | Hydrogen | 515 | 1.6 | 90 | Water-cooled | 3500×3200×2500 | 6500 | |
| 7 | DW-96.5/（ 15～23 ）-（ 21~29） | Hydrogen | 4500 | 2. 1～2.9 | 185 | Water-cooled | 5000×3000×2500 | 12000 | |
| 8 | DW-48 /（ 15～23 ）-（ 21~29） | Hydrogen | 2642～4500 | 2. 1～2.9 | 55 | Water-cooled | 4000×2700×2300 | 6000 | |
| 9 | D-0.57/16-200 | Hydrogen | 500 | 20 | 75 | Water-cooled | 5800×3200×2350 | 9000 | |
| 10 | ZW-0. 18/15-22 | Hydrogen | 150 | 2.2 | 11 | Water-cooled | 2200×1600×1700 | 2000 | |
| 11 | ZW-0.82/(6～8)-20 | Hydrogen | 300 | 2.0 | 22 | Water-cooled | 2500×1500×1750 | 2000 | |
| 12 | W-3/0.1-150 | Hydrogen | 212 | 15 | 55 | Water-cooled | 6000×2700×2100 | 15000 | |
| 13 | MW-7.7/9.8-40 | Hydrogen | 4200 | 4.0 | 355 | Water-cooled | 7500×3600×2000 | 22000 | |
| 14 | MW-25.2/（1.5～1.7）-10 | Hydrogen | 3300 | 1.0 | 315 | Water-cooled | 8000×3000×2200 | 20000 | |
| 15 | PW-0.6/(10～15)-30 | Hydrogen | 0~560 | 3.0 | 30 | Mixed cooling | 2200×1800×1600 | 1800 | |
| 16 | PW-13.7/17-25 | Hydrogen | 820 | 2.5 | 30 | Mixed cooling | 4000×2700×2300 | 6000 | |
| 17 | D-0.26/（28～31）-150 | Hydrogen | 400 | 15 | 45 | Mixed cooling | 3800×3200×1950 | 4800 | |
| 18 | PW-13.7/17-25 | Hydrogen | 820 | 2.5 | 30 | Mixed cooling | 4000×2700×2300 | 6000 | |
| 19 | VW-14.3/7 | Hydrogen | 750 | 0.7 | 110 | Mixed cooling | 4800×2250×2100 | 8000 | |
| 20 | DW-7.6/（4～5.7）-6.5 | Hydrogen | 2000 | 0.65 | 55 | Mixed cooling | 3500×3000×2300 | 6000 | |
Project Case
| | |
| Lanzhou petrochemical company 240000 tonsyear ethylene production capacity restoration - adding butadiene and 1-butene unloading facilities project | Ukraine Project | Zaozhuang CNG compressor project of Chengdu Shenliang Technology Co., Ltd. |
The crankcase and cylinder are made of gray cast iron/forged steel, ensuring durability and resistance to high pressure. The oil-free lubrication system uses materials that prevent hydrogen contamination.
Yes, the DW6.74 (3.3)/0.7 (5-12)-12 Hydrogen Compressor meets global safety and performance standards. 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).
Absolutely. We offer flexible transportation options via sea, air, or land, with packaging choices including metal cabins, wooden boxes, and soundproof cabins to ensure safe delivery.
The oil-free lubrication system eliminates the risk of oil mixing with hydrogen, critical for applications requiring high purity (e.g., semiconductors). It also reduces maintenance needs by avoiding oil-related wear and tear.
Bengbu United Compressor provides comprehensive after-sales service, including installation guidance, maintenance training, and spare parts supply. Our team is reachable via WhatsApp (+8618955218331), email (bblhcompressor@gmail.com), or phone (+86-552-4190082) for prompt assistance.
Engineered for performance, reliability, and versatility, the DW6.74 (3.3)/0.7 (5-12)-12 Hydrogen Compressor is the ideal choice for industries demanding top-tier hydrogen compression solutions. Trust in Bengbu United Compressor’s expertise to power your operations with efficiency and precision.
