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The ZW-1.46 / (1-14.2) - (4-17.2) Liquefied Gas Compressor is a high-performance industrial equipment manufactured by Bengbu United Compressor, a leading China-based manufacturer specializing in gas compression solutions. Designed for handling low-boiling, volatile substances, this compressor is engineered to deliver reliability and efficiency across diverse applications.
Ideal for sectors including urban construction, petroleum, defense, coal mining, geology, chemical engineering, metallurgy, machinery manufacturing, pharmaceuticals, and liquefied gas stations, this compressor excels in liquid transportation and residual gas recovery of substances like propane, butane, and butene. Its variant models can also be tailored for propylene and liquid ammonia handling, making it a versatile choice for multiple industrial needs.
Key technical specifications set this compressor apart: it boasts a processing capacity of 1.5m³/min, with an inlet pressure range of 0.1-1.42MPa (G) and an inlet temperature limit of ≤40℃. The exhaust pressure reaches 0.4-1.72MPa (G), powered by a 22kW main motor for consistent performance. With overall dimensions of ~2500 × 1600 × 1700mm and a weight of ~2.5T, it balances power with manageable size for flexible installation.
Built with a modular design, the ZW-1.46 / (1-14.2) - (4-17.2) Liquefied Gas Compressor supports customization to meet specific customer requirements, from flow rate and pressure to environmental adaptability, ensuring it integrates seamlessly into unique operational setups.
This compressor is engineered for high efficiency and strong reliability, with a high degree of automation that minimizes manual intervention. Its design reduces the number of vulnerable parts, lowering maintenance needs and extending service life. The integration of precision components—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)—ensures stable operation even in demanding conditions.
Operating with low vibration and low noise, the compressor creates a more comfortable working environment compared to conventional models. Its user-friendly design simplifies operation and maintenance, with accessible components and clear interfaces for routine checks. This ease of upkeep translates to reduced downtime, keeping industrial processes running smoothly.
The main and auxiliary equipment of the compressor are all installed on a skid, ensuring stable and reliable operation. This skid-mounted design simplifies transportation and on-site installation, saving time and labor costs. Whether for fixed facilities or temporary setups, the compact integration enhances flexibility in deployment.
Recognizing diverse industrial needs, the ZW-1.46 / (1-14.2) - (4-17.2) Liquefied Gas Compressor offers extensive customization. Options include:
· Structural forms: D-type, M-type, S-type, W-type, V-type, Z-type
· Cooling methods: water-cooled, air-cooled, mixed cooling
· Installation forms: fixed, mobile, skid-mounted, cabin-type
· Drive modes: motor-driven, diesel engine-driven
· Packaging & transportation: sea, air, or land transport with packaging options like metal cabins, wooden boxes, or soundproof cabins
The product is widely used in urban construction, petroleum, national defense, coal, geology, chemical industry, metallurgy, machinery manufacturing, medicine, liquefied gas stations and other departments. In addition, it is suitable for liquid transportation and residual gas recovery of low boiling and volatile substances such as propane, butane, and butene. Its variant products can be used for liquid transportation and gas recovery of propylene, liquid ammonia, etc.
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| 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 |
 | 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 |
The compressor adopts a Z-type reciprocating design with water cooling and oil-free operation. It features a two-row, three-stage compression process, and the unit is supplied in a modular configuration, allowing for convenient transportation and installation.
The overall structure is designed for stable and reliable operation, with an integrated layout of main and auxiliary systems to ensure smooth performance under continuous working conditions.
A double-distance piece design effectively isolates the crankcase from the compression chamber, preventing oil carryover and ensuring clean, contamination-free gas compression, making it suitable for applications with higher gas purity requirements.
The compressor is designed with low vibration and noise levels, while reducing wear parts and simplifying the structure, which helps achieve easy operation, reduced maintenance workload, and longer service intervals.
This model is manufactured by Bengbu United Compressor (China), a professional industrial gas compressor manufacturer specializing in LPG compressors, natural gas compressors, hydrogen compressors, and reciprocating compressor systems for global industrial applications.
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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 |
| No. | Model | Medium | Flow rate (Nm3/h) | Exhaust pressure MPa（G) | Motor power (kW) | oling meth | Overall dimensions (mm) | Weights (kg) | |
| 1 | ZW-0.8/（4.5～15）-（12.5～23） | Industrial ammonia | 0.8 | 1.25～2.3 | 15 | Air-cooled | 1650×650×1050 | 550 | |
| 2 | ZW-0.8/10-16 | Isobutane | 0.8 | 1.6 | 11 | Air-cooled | 1650×650×1150 | 450 | |
| 3 | ZW-0.8/10-16 | Liquefied gas | 0.8 | 1.6 | 11 | Air-cooled | 1750×900×1250 | 1200 | |
| 4 | ZW-0.8/16-24 | Ammonia gas | 0.8 | 2.4 | 15 | Air-cooled | 1800×950×1250 | 1300 | |
| 5 | ZW-1.0/（1～10）-（5～14） | Methylene chloride | 1.0 | 0.5～1.4 | 15 | Air-cooled | 1700×850×1050 | 600 | |
| 6 | ZW-1.0/（1～6）-（4～9） | Dimethylamine | 1.0 | 0.4～0.9 | 15 | Air-cooled | 1700×850×1050 | 600 | |
| 7 | ZW-1. 1/10-15 | Ammonia gas | 1.1 | 1.5 | 15 | Air-cooled | 1700×850×1100 | 700 | |
| 8 | ZW-1. 1/10-16 | Liquefied gas | 1.1 | 1.6 | 15 | Air-cooled | 1800×950×1250 | 1300 | |
| 9 | ZW-1. 1/16-24 | Ammonia gas | 1.1 | 2.4 | 22 | Air-cooled | 1650×850×1050 | 750 | |
| 10 | ZW-1. 1/16-24 | Ammonia gas | 1.1 | 2.4 | 22 | Air-cooled | 1850×950×1300 | 1400 | |
| 11 | ZW-1.5/10-16 | Liquefied gas | 1.5 | 1.6 | 22 | Air-cooled | 1850×950×1300 | 1400 | |
| 12 | ZW-1.5/16-24 | Ammonia gas | 1.5 | 2.4 | 30 | Air-cooled | 1900×980×1300 | 1500 | |
| 13 | ZW-2.0/10-16 | Isobutylene | 2.0 | 1.6 | 36 | Air-cooled | 1900×900×1200 | 900 | |
| 14 | ZW-3.0/10-16 | Liquefied gas | 3.0 | 1.6 | 45 | Air-cooled | 2200×1400×1750 | 2000 | |
| 15 | DW-3.0/10-15 | Ammonia gas | 3.0 | 1～1.5 | 45 | Water-coole | d3200×2200×1700 | 3500 | |
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| Alibek oilfield in Southern Kazakhstan | Zaozhuang CNG compressor project of Chengdu Shenliang Technology Co., Ltd. | Ningxia Zhongneng new materials engineering |
This compressor is designed for liquefied petroleum gas (LPG) and similar low-boiling hydrocarbons. It is commonly used for gases such as propane, butane, and butylene. Depending on project requirements, it can also be adapted for media such as propylene, liquid ammonia, and industrial ammonia, making it suitable for a wide range of gas handling applications.
Yes. The compressor is designed for industrial and outdoor operating conditions. It can be supplied in skid-mounted or mobile configurations, and is suitable for demanding environments such as oil & gas sites, chemical plants, and remote installations. Cooling systems and protection levels can be adjusted according to site conditions.
The compressor adopts a double-distance piece structure, which effectively separates the crankcase from the compression chamber. This prevents lubricating oil from entering the gas system. Combined with an oil-free cylinder lubrication design, it ensures clean gas output, which is essential for applications requiring higher gas purity.
Yes. This type of piston compressor has been used in multiple industrial projects, including:
Alibek Oilfield project (Kazakhstan)
CNG compressor project by Chengdu Shenliang Technology Co., Ltd.
Ningxia Zhongneng new materials project (China)
These applications demonstrate stable performance in both domestic and overseas industrial environments.
Yes. United Compressor (China) provides customized piston compressor solutions based on flow rate, pressure, gas composition, operating environment, and application requirements. We support design optimization from technical selection to manufacturing to ensure the equipment matches the actual working conditions of each project.
