China Good quality Air Cooing Water Cooling Hot Selling LPG Compressor for Gas Loading Unloading Industrial air compressor portable

Product Description

HangZhou CHINAMFG Gas Equipment Co.,Ltd, exporting diaphragm compressor, piston compressor, oxygen generator, gas cylinder and nitrogen generators with good quality and low price.

Piston compressor is a kind of piston reciprocating motion to make gas pressurization and gas delivery compressor mainly consists of working chamber, transmission parts, body and auxiliary parts. The working chamber is directly used to compress the gas, the piston is driven by the piston rod in the cylinder for reciprocating motion, the volume of the working chamber on both sides of the piston changes in turn, the volume decreases on 1 side of the gas due to the pressure increase through the valve discharge, the volume increases on 1 side due to the reduction of air pressure through the valve to absorb the gas.

Dump truck recovery compressor

Product description
This ZW series of oil-free compressors is 1 of the first products produced by our factory in China. The compressors have the advantage of low rotating speed, high component strength, stable operation, long service life and convenient maintenance. It is consist of compressor, gas-liquid separator, filter, two-position four-way valve, safety valve, check valve, explosion-proof motor and base etc. It has the characteristics of small size, light weight, low noise, good sealing, easy installation and easy operation.
This compressor is mainly used for unloading, loading, dumping, residual gas recovery and residual
liquid recovery of LPG/C4, propylene and liquid ammonia. It is widely used in gas, chemical,
energy and other industries, and is a key equipment in gas, chemical, energy and other

Note: In the process of unloading, the compressor pressurizes the gas from the storage tank and then presses it into the tanker through the gas phase line, and presses the liquid from the tanker to the storage tank through the pressure difference of the gas phase to complete the unloading two process. When the gas phase is pressurized, the temperature of the gas phase will rise. At this time, it is not necessary to force it to cool, because if the gas phase is compressed and then cooled, it is easy to liquefy, and the pressure difference of the gas phase is difficult to establish, which is not conducive to the replacement of the gas phase and the liquid phase. In short, it will prolong the unloading process time. If residual gas recovery is required, during the residual gas
recovery operation, a cooler can be selected for forced cooling of the gas phase, so as to recover the residual gas as soon as possible.
The loading process is the opposite of the unloading process.

This series of compressors are mainly used for process gas unloading, loading, tank dumping, residual gas recovery and residual liquid recovery process systems.

It has the characteristics of compact structure, high efficiency, stable operation, high reliability, easy installation and simple operation, etc. It is the key equipment in the gas unloading system.

Technical parameters and specifications

NO Model Capacity(Nm3/h) Inlet pressure
Outlet pressure
1 ZW-0.6/16-24 550 1.6 2.4 11 1000×580×870
2 ZW-0.8/16-24 750 1.6 2.4 15 1000×580×870
3 ZW-1.0/16-24 920 1.6 2.4 18.5 1000×580×870
4 ZW-1.5/16-24 1380 1.6 2.4 30 1000×580×870
5 ZW-2.0/16-24 1500 1.6 2.4 37 1000×580×870
6 ZW-2.5/16-24 1880 1.6 2.4 45 1000×580×870
7 ZW-3.0/16-24 2250 1.6 2.4 55 1000×580×870
8 ZW-0.8/10-16 450 1.0 1.6 11 1100×740×960
9 ZW-1.1/10-16 600 1.0 1.6 15 1100×740×960
10 ZW-1.35/10-16 750 1.0 1.6 18.5 1100×740×960
11 ZW-1.6/10-16 950 1.0 1.6 22 1400×900×1180
12 ZW-2.0/10-16 1200 1.0 1.6 30 1400×900×1180
13 ZW-2.5/10-16 1500 1.0 1.6 37 1400×900×1180
14 ZW-3.0/10-16 1800 1.0 1.6 45 1400×900×1180
15 ZW-0.6/16-24 550 1.6 2.4 11 1500×800×1100
16 ZW-0.8/16-24 750 1.6 2.4 15 1500×800×1100
17 ZW-1.0/16-24 920 1.6 2.4 18.5 1500×800×1100
18 ZW-1.5/16-24 1380 1.6 2.4 30 1600×900×1200
19 ZW-2.0/16-24 1500 1.6 2.4 37 1600×900×1200
20 ZW-2.5/16-24 1880 1.6 2.4 45 1600×900×1200
21 ZW-3.0/16-24 2580 1.6 2.4 55 1600×900×1200
22 ZW-3.5/16-24 3000 1.6 2.4 55 1600×900×1200
23 ZW-4.0/16-24 3500 1.6 2.4 75 1600×900×1200
24 ZW-0.2/10-25 100 1 2.5 5.5 1000×580×870
25 ZW-0.4/10-25 220 1 2.5 11 1000×580×870
26 ZW-0.6/10-25 330 1 2.5 15 1000×580×870
27 ZW-0.2/25-40 260 2.5 4 7.5 1000×580×870
28 ZW-0.4/25-40 510 2.5 4 15 1000×580×870
29 ZW-0.5/25-40 660 2.5 4 18.5 1000×580×870
30 ZW-0.3/20-30 300 2 3 7.5 1000×580×870
31 ZW-0.4/20-30 420 2 3 11 1000×580×870
32 ZW-0.5/20-30 540 2 3 15 1000×580×870
33 ZW-0.6/20-30 630 2 3 15 1000×580×870
34 ZW-1.6/20-30 1710 2 3 37 1400×900×1180

 Piping and Instrumentation Diagram of gas unloading  
 Liquid delivery
At the beginning, open the liquid phase pipeline between the tanker and the storage tank. If the liquid level in the tanker is higher than the storage tank, it will automatically flow into the storage tank. When the balance is reached, the flow will stop. If the liquid phase of the tanker is lower than the storage tank, directly start the compressor, the four-way valve is in a positive position, and the gas is extracted from the storage tank by the compressor and then discharged into the tanker. At this time, the pressure in the tank car rises, the pressure in the storage tank drops, and
the liquid in the tank car flows into the storage tank. (as shown below)

Picture display



Company strength display

HangZhou CHINAMFG Gas Equipment Co., Ltd. is a manufacturer engaged in the research and development, design and production of gas compressors. The company has its own production technology, processing equipment and assembly technology, and has many years of experience in the production of various flammable and explosive special gas compressors.

Huayan compressor products cover almost all gas media, up to 6th-stage compression and 3000kw power. Products can be customized according to customer requirements to better meet customer needs. The products are mainly used in gas compressors in the petroleum industry, chemical and natural gas compressors, industrial compressors, compressors for waste gas treatment and biogas utilization, and compressors for special gases.


After Sales Service
1.Quick response within 2 to 8 hours, with a reaction rate exceeding 98%;
2. 24-hour telephone service, please feel free to contact us;
3. The whole machine is guaranteed for 1 year (excluding pipelines and human factors);
4. Provide consulting service for the service life of the whole machine, and provide 24-hour technical support via email;
5. On-site installation and commissioning by our experienced technicians;

Exhibition Display

Certificate display

Packaging and Shipping 

1.How to get a prompt quotation of gas compressor ?
1)Flow Rate/Capacity : ___ Nm3/h
2)Suction/ Inlet Pressure : ____ Bar
3)Discharge/Outlet Pressure :____ Bar
4)Gas Medium :_____
5)Voltage and Frequency : ____ V/PH/HZ

2.How long is delivery time ?
Delivery time is around the 30-90 days .

3.What about the voltage of products? Can they be customized?
Yes, the voltage can be customized according to your inquire.

4.Can you accept OEM orders?
Yes, OEM orders is highly welcome.

5.Will you provide some spare parts of the machines?
Yes, we will .


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After-sales Service: Provide After-Sales Service
Warranty: 18months
Lubrication Style: Lubricated
Cooling System: Air Cooling
Cylinder Arrangement: Balanced Opposed Arrangement
Cylinder Position: Angular


air compressor

Can Gas Air Compressors Be Used in Construction Projects?

Gas air compressors are widely used in construction projects due to their portability, versatility, and ability to provide the necessary compressed air for various applications. They are an essential tool in the construction industry, enabling the efficient and effective operation of pneumatic tools and equipment. Here’s a detailed explanation of how gas air compressors are used in construction projects:

1. Powering Pneumatic Tools:

Gas air compressors are commonly used to power a wide range of pneumatic tools on construction sites. These tools include jackhammers, nail guns, impact wrenches, concrete breakers, air drills, sanders, grinders, and paint sprayers. The compressed air generated by the gas air compressor provides the necessary force and power for efficient operation of these tools, enabling tasks such as concrete demolition, fastening, surface preparation, and finishing.

2. Air Blow and Cleaning Operations:

In construction projects, there is often a need to clean debris, dust, and dirt from work areas, equipment, and surfaces. Gas air compressors are used to generate high-pressure air for air blow and cleaning operations. This helps maintain cleanliness, remove loose materials, and prepare surfaces for further work, such as painting or coating.

3. Operating Pneumatic Systems:

Gas air compressors are employed to operate various pneumatic systems in construction projects. These systems include pneumatic control devices, pneumatic cylinders, and pneumatic actuators. Compressed air from the gas air compressor is used to control the movement of equipment, such as gates, doors, and barriers, as well as to operate pneumatic lifts, hoists, and other lifting mechanisms.

4. Concrete Spraying and Shotcreting:

Gas air compressors are utilized in concrete spraying and shotcreting applications. Compressed air is used to propel the concrete mixture through a nozzle at high velocity, ensuring proper adhesion and distribution on surfaces. This technique is commonly employed in applications such as tunnel construction, slope stabilization, and repair of concrete structures.

5. Sandblasting and Surface Preparation:

In construction projects that require surface preparation, such as removing old paint, rust, or coatings, gas air compressors are often used in conjunction with sandblasting equipment. Compressed air powers the sandblasting process, propelling abrasive materials such as sand or grit onto the surface to achieve effective cleaning and preparation before applying new coatings or finishes.

6. Tire Inflation and Equipment Maintenance:

Gas air compressors are utilized for tire inflation and equipment maintenance on construction sites. They provide compressed air for inflating and maintaining proper tire pressure in construction vehicles and equipment. Additionally, gas air compressors are used for general equipment maintenance, such as cleaning, lubrication, and powering pneumatic tools for repair and maintenance tasks.

7. Portable and Remote Operations:

Gas air compressors are particularly beneficial in construction projects where electricity may not be readily available or feasible. Portable gas air compressors provide the flexibility to operate in remote locations, allowing construction crews to utilize pneumatic tools and equipment without relying on a fixed power source.

Gas air compressors are an integral part of construction projects, facilitating a wide range of tasks and enhancing productivity. Their ability to power pneumatic tools, operate pneumatic systems, and provide compressed air for various applications makes them essential equipment in the construction industry.

air compressor

Can Gas Air Compressors Be Used in Agriculture?

Yes, gas air compressors can be used in various agricultural applications. Here’s a detailed explanation:

1. Pneumatic Tools and Equipment:

Gas air compressors can power a wide range of pneumatic tools and equipment used in agriculture. These tools include pneumatic drills, impact wrenches, nail guns, staplers, and pneumatic pumps. Gas air compressors provide the necessary compressed air to operate these tools, making various tasks more efficient and convenient on the farm.

2. Irrigation Systems:

Gas air compressors can be used to power irrigation systems in agriculture. They can supply compressed air to operate pneumatic valves, which control the flow of water in irrigation networks. Gas air compressors ensure reliable and efficient operation of irrigation systems, facilitating the distribution of water to crops in a controlled manner.

3. Grain Handling and Storage:

Air compressors play a vital role in grain handling and storage facilities. They are used to power aeration systems that provide airflow to grains stored in silos or bins. Aeration helps control the temperature and moisture levels, preventing spoilage and maintaining grain quality. Gas air compressors provide the airflow necessary for effective aeration in grain storage operations.

4. Cleaning and Maintenance:

In agriculture, gas air compressors are commonly used for cleaning and maintenance tasks. They can power air blowers or air guns to remove dust, debris, or chaff from machinery, equipment, or storage areas. Gas air compressors provide a high-pressure stream of compressed air, facilitating efficient cleaning and maintenance operations.

5. Livestock Operations:

Gas air compressors find applications in livestock operations as well. They can power pneumatic equipment used for animal care, such as pneumatic nail guns for building or repairing livestock enclosures, pneumatic pumps for water distribution, or pneumatic tools for general maintenance tasks.

6. Portable and Versatile:

Gas air compressors are often portable and can be easily transported around the farm, allowing flexibility in agricultural operations. Their versatility makes them suitable for various tasks, from powering tools and equipment in the field to providing compressed air for maintenance or cleaning in different farm locations.

7. Remote Locations:

In agricultural settings where access to electricity may be limited, gas air compressors offer a reliable alternative. They can be powered by gasoline or diesel engines, providing compressed air even in remote areas without electrical infrastructure.

8. Considerations:

When using gas air compressors in agriculture, it is essential to consider factors such as compressor size, capacity, and maintenance requirements. Selecting the right compressor based on the specific needs of the agricultural applications ensures optimal performance and efficiency.

In summary, gas air compressors have various applications in agriculture. They can power pneumatic tools and equipment, operate irrigation systems, facilitate grain handling and storage, assist in cleaning and maintenance tasks, support livestock operations, and offer portability and versatility. Gas air compressors contribute to increased efficiency, convenience, and productivity in agricultural operations.

air compressor

How Does a Gas Air Compressor Work?

A gas air compressor works by utilizing a gas engine to power a compressor pump, which draws in air and compresses it to a higher pressure. The compressed air can then be used for various applications. Here’s a detailed explanation of how a gas air compressor operates:

1. Gas Engine:

A gas air compressor is equipped with a gas engine as its power source. The gas engine is typically fueled by gasoline, diesel, natural gas, or propane. When the engine is started, the fuel is combusted within the engine’s cylinders, generating mechanical energy in the form of rotational motion.

2. Compressor Pump:

The gas engine drives the compressor pump through a mechanical linkage, such as a belt or direct coupling. The compressor pump is responsible for drawing in atmospheric air and compressing it to a higher pressure. There are different types of compressor pumps used in gas air compressors, including reciprocating, rotary screw, or centrifugal, each with its own operating principles.

3. Intake Stroke:

In a reciprocating compressor pump, the intake stroke begins when the piston moves downward within the cylinder. This creates a vacuum, causing the inlet valve to open and atmospheric air to be drawn into the cylinder. In rotary screw or centrifugal compressors, air is continuously drawn in through the intake port as the compressor operates.

4. Compression Stroke:

During the compression stroke in a reciprocating compressor, the piston moves upward, reducing the volume within the cylinder. This compression action causes the air to be compressed and its pressure to increase. In rotary screw compressors, two interlocking screws rotate, trapping and compressing the air between them. In centrifugal compressors, air is accelerated and compressed by high-speed rotating impellers.

5. Discharge Stroke:

Once the air is compressed, the discharge stroke begins in reciprocating compressors. The piston moves upward, further reducing the volume and forcing the compressed air out of the cylinder through the discharge valve. In rotary screw compressors, the compressed air is discharged through an outlet port as the interlocking screws continue to rotate. In centrifugal compressors, the high-pressure air is discharged from the impeller into the surrounding volute casing.

6. Pressure Regulation:

Gas air compressors often include pressure regulation mechanisms to control the output pressure of the compressed air. This can be achieved through pressure switches, regulators, or control systems that adjust the compressor’s operation based on the desired pressure setting. These mechanisms help maintain a consistent and controlled supply of compressed air for the specific application requirements.

7. Storage and Application:

The compressed air produced by the gas air compressor is typically stored in a receiver tank or used directly for applications. The receiver tank helps stabilize the pressure and provides a reservoir of compressed air for immediate use. From the receiver tank, the compressed air can be distributed through pipelines to pneumatic tools, machinery, or other devices that require the compressed air for operation.

Overall, a gas air compressor operates by using a gas engine to power a compressor pump, which draws in air and compresses it to a higher pressure. The compressed air is then regulated and used for various applications, providing a reliable source of power for pneumatic tools, machinery, and other equipment.

China Good quality Air Cooing Water Cooling Hot Selling LPG Compressor for Gas Loading Unloading Industrial   air compressor portableChina Good quality Air Cooing Water Cooling Hot Selling LPG Compressor for Gas Loading Unloading Industrial   air compressor portable
editor by CX 2024-01-31

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