China factory GD-25/-0.1-47 Oil Free Gas Diaphragm Compressor for Hydrogen Nitrogen Helium Membrane Compressor air compressor for sale

Product Description

Reciprocating Completely Oil-Free Diaphragm Compressor
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Our company specialize in producing various kinds of compressor products, such as:Diaphragm compressor,Piston compressor, Air compressors,Nitrogen generator,Oxygen generator ,Gas cylinder,etc. All products can be customized according to your parameters and other requirements.

Process Principle
Diaphragm compressor according to the needs of the user, choose the right type of compressor to meet the needs of the user. The diaphragm of the metal diaphragm compressor completely separates the gas from the hydraulic oil system to ensure the purity of the gas and no pollution to the gas. At the same time, advanced manufacturing technology and accurate membrane cavity design technology are adopted to ensure the service life of the diaphragm compressor diaphragm. No pollution: the metal diaphragm group completely separates the process gas from the hydraulic oil and lubricating oil parts to ensure the gas purity.
Main Structure
Diaphragm compressor structure is mainly composed of motor, base, crankcase, crankshaft linkage mechanism, cylinder components, crankshaft connecting rod, piston, oil and gas pipeline, electric control system and some accessories.
Gas Media 
Our compressors can compress ammonia, propylene, nitrogen, oxygen, helium, hydrogen, hydrogen chloride, argon, hydrogen chloride, hydrogen sulfide, hydrogen bromide, ethylene, acetylene, etc.(Nitrogen diaphragm compressor,bottle filling compressor,oxygen diaphragm compressor)
GD Model Instruction
GD diaphragm compressor is a special structure of the volumetric compressor, is the highest level of compression in the field of gas compression, this compression method Without secondary pollution, it can ensure the purity of gas is more than 5, and it has very good protection against compressed gas. It has the characteristics of large compression ratio, good sealing performance, and the compressed gas is not polluted by lubricating oil and other CHINAMFG impurities. Therefore, it is suitable for compressing high-purity, rare and precious, flammable, explosive, toxic, harmful, corrosive and high-pressure gases. The compression method is generally specified in the world for compressing high-purity gas, flammable and explosive gas, toxic gas and oxygen. Etc. (such as nitrogen diaphragm compressor, oxygen diaphragm compressor, hydrogen sulfide diaphragm compressor, argon diaphragm compressor, etc.).
GD diaphragm compressor for my company independent research and development of large diaphragm compressor, its advantages are: high compression ratio, large displacement, large piston force, stable running, high exhaust pressure, etc, has been widely used and petroleum chemical industry and nuclear power plant, and so on,.Two GD type diaphragm compressor cylinder arrangement for symmetrically arranged in parallel, more suitable for the petrochemical and nuclear power plant such as uninterrupted operation for a long time, because of the cylinder body symmetry, run up against other arrangement of diaphragm compressor is the most stable operation, running, small vibration from the ground clearance is more convenient in maintenance.
1.Good sealing performance
Diaphragm compressor is a kind of special structure displacement compressor.The gas does not need lubrication,the sealing performance is good,the compression medium does not contact with any lubricant,and there will be no pollution in the compression process.It is especially suitable for high purity(99.9999%),rate,extremely corrosive,toxic and harmful,inflammable and explosive.Compression,transportation and bottle filling of radioactive gases.Membrane head is sealed with inlaid double O-ring,and its sealing effect is far better than that of open type.
2.Cylinder has good heat dissipation performance
The working cylinder of diaphragm compressor has good heat dissipation performance and is close to isothermal compression.It can adopt higher compression ratio and is suitable for compressing high-pressure gas.
3.Compressor speed is low and service life of vulnerable parts is prolonged.The new type of diaphragm cavity curve improve the volume efficiency of the compressor,optimize the value type,and adopt special heat treatment method for diaphragm,which greatly improves the service life of the compressor.
4.The high efficiency cooler is adopted,which makes the whole machine low in temperature and high in efficiency.The service life of lubricating oil,O-ring and value spring can be prolonged appropriately .Under the condition of meeting the buyer’s technological parameters,the structure is more advanced,reasonable and energy-saving.
5.The diaphragm rupture alarm structure is advanced,reasonable and reliable.The diaphragm installation has no directionality and is easy to replace.
6.The parts and components of the whole equipment are concentrated on a skid-mounted chassis,which is convenient for transportation,installation and management.

Reference Operating Parameter:

Model GD-120/4-80 Remarks
Volume Flow Nm3/h 120 No-Standard
Working pressure Suction pressure: 0.4MPa No-Standard
  Exhaust pressure: 8.0MPa No-Standard
Cooling Method    Water-Cooled  No-Standard
Intake temperature °C 0~30  
Inlet pressure MPa 0.3~0.4  
Discharge temperature °C ≤45ºC  
Noise dB(A) ≤80  
Power/Frequence V/Hz 380/50 No-Standard
Motor Power Kw 22KW~200KW No-Standard
Crankshaft speed r/min 420  
Overall dimension L/mm 3000  
  W/mm 1600  
  H/mm 1400  

Reference Specification

1 GD-120/4-80 3.0 120 0.4 8.0 3000x1600x1400   30
2 GD-130/0.98-11 3.0 130 0.098 1.1 3000x1800x1600 4.0 30
3 GD-150/2-20 3.0 150 0.2 2.0 3000x1800x1600 4.0 37
4 GD-100/0.1-5 4.0 100 0.01 0.5 2800X1500X1500 3.0 18.5
5 GD-100/5.5-200 5.0 100 0.55 20 3200X2000X1600 4.5 45
6 GD-80/0.12-4 5.0 80 0.012 0.4 2800x1600x 1500 3.8 15
7 GD-60/0.3-6 4.0 60 0.03 0.6 2800x1600x1500 4.0 15
8 GD-70/0.1-8 3.8 70 0.01 0.8 3000 x 1600×1250 5.0 18.5
9 GD-40/0.02-160 5.0 40 0.02 16 2800x1460x1530 3.0 22
10 GD-100/0.5-6 2.0 100 0.05 0.6 3000x2000x1560 6.0 18.5
11 GD-36/1-150 4.0 36 0.1 15 3000x1500x1500 4.0 45
12 GD-35/0.7-300 4.0 35 0.07 30 3000x1600x1500 4.0 22
13 GD-500/15-35 4.5 500 1.5 3.5 3000x2000x1700 4.0 45
14 GD-150/15-210 4.5 150 1.5 21 3200x1700x1600 4.0 45
15 GD-120/8-220 4.5 120 0.8 22 3200x1700x1600 3.8 45
16 GD-100/9 4.5 100 0.0 0.9 3200x1700x1800 4.5 22
17 GD-100/1.5-150 4.5 100 0.15 15 3200x1700x1800 4.5 45
18 GD-40/30 4.5 40 0.0 3.0 3200x1700x1800 4.0 18.5


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After-sales Service: 7*24
Warranty: 18month
Principle: Displacement Compressor


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Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

What Is the Typical Lifespan of a Gas Air Compressor?

The typical lifespan of a gas air compressor can vary depending on several factors, including the quality of the compressor, its usage patterns, maintenance practices, and environmental conditions. However, with proper care and maintenance, a gas air compressor can last for many years. Here’s a detailed explanation of the factors that can affect the lifespan of a gas air compressor:

1. Quality of the Compressor:

The quality and construction of the gas air compressor play a significant role in determining its lifespan. Compressors made with high-quality materials, precision engineering, and robust components are generally more durable and can withstand heavy usage over an extended period.

2. Usage Patterns:

The usage patterns of the gas air compressor can impact its lifespan. If the compressor is used consistently and for extended periods, it may experience more wear and tear compared to compressors used intermittently or for lighter tasks. Heavy-duty applications, such as continuous operation with high-demand tools, can put more strain on the compressor and potentially reduce its lifespan.

3. Maintenance Practices:

Regular maintenance is crucial for extending the lifespan of a gas air compressor. Following the manufacturer’s recommended maintenance schedule, performing routine tasks like oil changes, filter cleaning/replacement, and inspection of components can help prevent issues and ensure optimal performance. Neglecting maintenance can lead to accelerated wear and potential breakdowns.

4. Environmental Conditions:

The operating environment can significantly impact the lifespan of a gas air compressor. Factors such as temperature extremes, humidity levels, presence of dust or debris, and exposure to corrosive substances can affect the compressor’s components and overall performance. Compressors used in harsh environments may require additional protection or specialized maintenance to mitigate these adverse conditions.

5. Proper Installation and Operation:

Proper installation and correct operation of the gas air compressor are essential for its longevity. Following the manufacturer’s guidelines for installation, ensuring proper ventilation, maintaining correct oil levels, and operating within the compressor’s specified capacity and pressure limits can help prevent excessive strain and premature wear.

Considering these factors, a well-maintained gas air compressor can typically last anywhere from 10 to 15 years or even longer. However, it’s important to note that this is a general estimate, and individual results may vary. Some compressors may experience shorter lifespans due to heavy usage, inadequate maintenance, or other factors, while others may last well beyond the expected lifespan with proper care and favorable conditions.

Ultimately, investing in a high-quality gas air compressor, adhering to recommended maintenance practices, and using it within its intended capabilities can help maximize its lifespan and ensure reliable performance for an extended period.

air compressor

What Is the Role of Air Receivers in Gas Air Compressor Systems?

Air receivers play a crucial role in gas air compressor systems by serving as storage tanks for compressed air. Here’s a detailed explanation:

1. Storage and Stabilization:

The primary function of an air receiver is to store compressed air generated by the gas air compressor. As the compressor produces compressed air, the air receiver collects and stores it. This storage capacity helps meet fluctuating demand in compressed air usage, providing a buffer between the compressor and the system’s air consumption.

By storing compressed air, the air receiver helps stabilize the supply to the system, reducing pressure fluctuations and ensuring a consistent and reliable flow of compressed air. This is particularly important in applications where the demand for compressed air may vary or experience peaks and valleys.

2. Pressure Regulation:

Another role of the air receiver is to assist in pressure regulation within the gas air compressor system. As compressed air enters the receiver, the pressure inside increases. When the pressure reaches a predetermined upper limit, typically set by a pressure switch or regulator, the compressor stops supplying air, and the excess air is stored in the receiver.

Conversely, when the pressure in the system drops below a certain lower limit, the pressure switch or regulator signals the compressor to start, replenishing the compressed air in the receiver and maintaining the desired pressure level. This cycling of the compressor based on pressure levels helps regulate and control the overall system pressure.

3. Condensate Separation:

During the compression process, moisture or condensate can form in the compressed air due to the cooling effect. The air receiver acts as a reservoir that allows the condensate to settle at the bottom, away from the outlet. The receiver often includes a drain valve at the bottom to facilitate the removal of accumulated condensate, preventing it from reaching downstream equipment and causing potential damage or performance issues.

4. Energy Efficiency:

Air receivers contribute to energy efficiency in gas air compressor systems. They help optimize the operation of the compressor by reducing the occurrence of short-cycling, which refers to frequent on-off cycling of the compressor due to rapid pressure changes. Short-cycling can cause excessive wear on the compressor and reduce its overall efficiency.

The presence of an air receiver allows the compressor to operate in longer and more efficient cycles. The compressor runs until the receiver reaches the upper pressure limit, ensuring a more stable and energy-efficient operation.

5. Air Quality Improvement:

Depending on the design, air receivers can also aid in improving air quality in the compressed air system. They provide a space for the compressed air to cool down, allowing moisture and some contaminants to condense and separate from the air. This can be further enhanced with the use of additional filtration and drying equipment installed downstream of the receiver.

In summary, air receivers play a vital role in gas air compressor systems by providing storage capacity, stabilizing compressed air supply, regulating system pressure, separating condensate, improving energy efficiency, and contributing to air quality control. They are an integral component in ensuring the reliable and efficient operation of compressed air systems across various industries and applications.

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 factory GD-25/-0.1-47 Oil Free Gas Diaphragm Compressor for Hydrogen Nitrogen Helium Membrane Compressor   air compressor for saleChina factory GD-25/-0.1-47 Oil Free Gas Diaphragm Compressor for Hydrogen Nitrogen Helium Membrane Compressor   air compressor for sale
editor by CX 2024-04-25

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