Jinding is a D Membrane Compressor manufacturer and supplier providing diaphragm compressor solutions for high-purity and special gas applications. The GD series covers gas flows from 10 to 2710 Nm ³ /h and discharge pressures up to 22 MPa(G), with different configurations available for specific gas, pressure and capacity requirements.
Gas separation is an important consideration when compressing high-purity or special gases. In the D Membrane Compressor, a diaphragm separates the process gas from the hydraulic and lubrication side of the compressor. Gas compression takes place through the movement of the diaphragm rather than through direct piston contact with the gas chamber, helping prevent direct contact between the process gas and lubricating oil.
Gas Separation Is the Core of the D Type
The main structural feature of a membrane compressor is the separation between the compressed gas and the hydraulic drive system.
In a conventional piston compressor, the piston operates directly inside the gas cylinder. A membrane compressor takes a different approach. The diaphragm forms a barrier between the gas chamber and the hydraulic side. The diaphragm moves under hydraulic drive and transfers the compression movement to the gas without requiring direct contact between the process gas and the lubricating system.
This arrangement is particularly relevant when the gas being compressed needs to be kept separate from the oil or hydraulic system.
Two-Stage Compression for Different Pressure Duties
The D Membrane Compressor uses a two-stage compression arrangement. Rather than applying the complete pressure increase in one compression step, the gas passes through two compression stages. This arrangement allows the available models to cover different combinations of inlet pressure, outlet pressure, and gas flow.
Main Technical Parameters
Model
Inlet pressure
MPa(G)
Outlet
pressure
MPa(G)
Nominal
volumetric
flow rate
(Nm3/h)
Power
(KW)
Speed
(r/min)
Dimension
L*W*H(mm)
GD-1000/15-220
1.5
22
1000
185
420
6800*3900*2300
GD-670/12-220
1.2
22
670
160
420
6800*3900*2300
GD-400/3-220
0.3
22
400
185
420
6500*4200*2500
GD-2710/9.6-16
0.4
13.5
2710
132
420
5000*3700*2500
GD-649/5.5-28
0.55
2.8
649
75
420
4500*3000*2000
GD-350/0.5-3
0.2
4.5
200
55
420
4500*3000*1800
GD-180/15
Atmospheric
pressure
1.5
180
45
420
5000*3450*2500
GD-667/1.25-6
0.125
0.6
667
75
420
4200*3400*2500
GD-120/0.35-10
0.035
1.0
120
37
420
5070*3210*2500
GD-313/1-20
0.1
2.0
313
75
423
6800*3200*3700
GD-150/1.5-19
0.15
1.9
150
37
420
3040*2700*1540
GD-43/0.5-18.5
0.05
1.85
43
18.5
420
3100*2500*2200
GD-75/4
Atmospheric
pressure
0.4
75
18.5
415
3040*2700*1470
GD-30/160
Atmospheric
pressure
16
30
22
410
2800*1400*1400
GD-50/9-150
0.9
15
50
15
400
2500*1300*1300
GD-10/20
Atmospheric
pressure
2.0
10
7.5
410
2800*1800*1600
GD-50/4-60
0.4
6.0
50
18.5
410
2900*1800*1600
GD-25/30-210
3.0
21
25
11
500
2000*1280*1500
GD-20/5-150
0.5
15
20
11
500
1600*900*1400
Gases Suitable for D Membrane Compression
The D Membrane Compressor can be configured for several categories of industrial and special gases:
High-Purity Gases
Inert Gases
Flammable and Explosive Gases
Toxic Gases
Other Special Gases
FAQ
1. What Is a D Membrane Compressor Used For?
It is designed to compress high-purity, inert, flammable, explosive, toxic and other specialty gases across different flow rates and pressure requirements.
2. How Does the Diaphragm Compression System Work?
A diaphragm separates the process gas chamber from the hydraulic and lubrication system, minimizing the risk of direct contact between the gas and lubricating oil.
3. Is the Gas Compression Process Oil-Free?
The process gas is isolated from the hydraulic and lubrication sides by the diaphragm. Therefore, the equipment is more accurately described as using diaphragm-separated gas compression rather than classifying the entire machine as oil-free.
4. How Many Compression Stages Does the D Series Have?
The specified D Series configuration uses a two-stage compression arrangement.
5. What Is the Flow Range of the Available Models?
The listed models cover nominal flow rates from 10 to 2,710 Nm³/h.
6. What Is the Maximum Outlet Pressure?
Selected models in the listed range have a maximum outlet pressure of 22 MPa(G).
7. Does the Equipment Use Water Cooling?
Yes. The specified technical configuration uses a circulating water cooling system.
Planning an industrial gas compression or acetylene production project? Send Jinding Technology your application details, including gas composition, inlet and outlet pressure, required capacity and operating conditions. Our team can review the information and discuss relevant equipment options, technical requirements and quotation details.
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