Diaphragm Compressor

Diaphragm compressors are highly reliable machines designed for the delivery and pressurization of a wide variety of gases. These compressors are especially suitable for applications requiring clean, contamination-free gas compression, thanks to their superior cylinder sealing. Diaphragm compressors can also serve as booster compressors following oil-free lubricated compressors, making them ideal for critical industrial and laboratory uses where gas purity is essential.

Advantages of Diaphragm Compressors:

Diaphragm compressors offer high design outlet pressure and exceptional gas purity, as there is no oil contamination during compression. With superior sealing performance and the option to use corrosion-resistant materials, diaphragm compressors are ideal for handling a wide variety of gases in demanding industrial and laboratory environments.

What Are Diaphragm Compressors? Overview, Features, and Classifications

Diaphragm compressors are a type of positive displacement compressor known for their unique structural design and exceptional gas purity performance. As one of the most advanced gas compression technologies, diaphragm compressors ensure that the gas is completely isolated from lubricants and contaminants throughout the compression process. This makes them the preferred solution for compressing gases where purity and safety are critical.

Unlike traditional piston compressors, diaphragm compressors use a flexible diaphragm to compress gas, eliminating the risk of secondary pollution. They offer a high compression ratio, superior sealing capability, and reliable protection for the compressed gas. As a result, diaphragm compressors are ideal for handling high-purity gases, rare and precious gases, flammable and explosive gases, toxic and hazardous gases, corrosive gases, and high-pressure applications.

Due to their outstanding performance, diaphragm compressors are widely recognized and recommended internationally for compressing oxygen, hydrogen, helium, nitrogen, and other sensitive gases.

Classification of Diaphragm Compressors

A. By Structure Type:

•Common structural forms include Z-type, V-type, D-type, and L-type diaphragm compressors.

B. By Diaphragm Material:

•Diaphragm compressors can use metal diaphragms (both ferrous and non-ferrous metals) or non-metallic diaphragms, depending on the gas and operating conditions.

C. By Compressed Media:

•Suitable for compressing:

•Rare and precious gases

•High-purity gases

•Flammable and explosive gases

•Corrosive and toxic gases

D. By Mechanical Drive Mechanism:

•Includes crankshaft–connecting rod mechanisms and crank-slider systems.

E. By Cooling Method:

•Cooling options include water cooling, oil cooling, air (rear) cooling, and natural cooling.

F. By Lubrication System:

•Diaphragm compressors may use pressure lubrication, splash lubrication, or external forced lubrication depending on application needs.

Why Choose Diaphragm Compressors?

Zero contamination: No oil or solid impurity contact with the gas.
Excellent sealing: Ensures gas purity and safety.
High compression ratio: Suitable for high-pressure requirements.
Wide application: Perfect for industries requiring strict gas purity—such as chemical processing, medical gas supply, electronics, and aerospace.

GD SERIES DIAPHRAGM COMPRESSOR-PARAMETER TA

GD series diaphragm compressor parameter table
	Model	Cooling water (L/h)	Flow (Nm³/h)	Inlet pressure (MPa)	Outlet pressure (MPa)	Dimensions L×W×H(mm)	Weight (Kg)	Motor Power (kW)
1	GD-120/4-80	3000	120	0.4	8.0	3000×1600×1400	4000	30
2	GD-130/0.98-11	3000	130	0.098	1.1	3000×1800×1600	4000	30
3	GD-150/2-20	3000	150	0.2	2.0	3000×1800×1600	4000	37
4	GD-100/0.1-5	4000	100	0.01	0.5	2800×1500×1500	3000	18.5
5	GD-100/5.5-200	5000	100	0.55	20	3200×2000×1600	4500	45
6	GD-80/0.12-4	5000	80	0.012	0.4	2800×1600× 1500	3800	15
7	GD-60/0.3-6	4000	60	0.03	0.6	2800×1600×1500	4000	15
8	GD-70/0.1-8	3800	70	0.01	0.8	3000×1600×1250	5000	18.5
9	GD-40/0.02-160	5000	40	0.02	16	2800×1460×1530	3000	22
10	GD-100/0.5-6	2000	100	0.05	0.6	3000×2000×1560	6000	18.5
11	GD-36/1-150	4000	36	0.1	15	3000×1500×1500	4000	45
12	GD-35/0.7-300	4000	35	0.07	30	3000×1600×1500	4000	22
13	GD-500/15-35	4500	500	1.5	3.5	3000×2000×1700	4000	45
14	GD-150/15-210	4500	150	1.5	21	3200×1700×1600	4000	45
15	GD-120/8-220	4500	120	0.8	22	3200×1700×1600	3800	45
16	GD-100/9	4500	100	0.0	0.9	3200×1700×1800	4500	22
17	GD-100/1.5-150	4500	100	0.15	15	3200×1700×1800	4500	45
18	GD-40/30	4500	40	0.0	3.0	3200×1700×1800	4000	18.5
19	GD-200/10-15-90	4500	200	1.0-1.5	9.0	3200×1800×1600	4000	37
20	GD-100/7-150	4000	100	0.7	15	3000×1800× 1600	4000	55
21	GD-25/-0.1-47	4000	25	-0.01	4.7	3000×1800×1600	4000	15
22	GD-45/0.5-100	4000	45	0.05	10	3000×1800×1600	4000	30
23	GD-30/0.1-160	4000	30	0.01	16	3000×1800×1600	4000	18.5
24	GD-120/2.5-70	4000	120	0.25	7.0	3000×1800×1600	4000	37
25	GD-135/10-210	4000	135	1.0	21	3000×1600×1400	4000	37
26	GD-60/40-350	4500	60	4.0	35	3000×1800×1600	4000	30
27	GD-95/10-350	4000	95	1.0	35	3000×1600×1400	4000	37
28	GD-220/11-90	4000	220	1.1	9.0	3000×1800×1600	4000	37
29	GD-300/15-220	4500	300	1.5	22	3600×2200×1700	5000	75
30	GD-300/13-210	5000	300	1.3	21	3500×2300×1800	6000	75
31	GD-120/12-350	6500	120	1.2	35	3500×2300×1600	8500	45
32	GD-165/10-250	8000	165	1.0	25	3500×2300×1500	8500	55
33	GD-120/8-350	6500	120	0.8	35	3500×2300×1600	8500	45
34	GD-800/210-320	8000	800	21	32	3500×2300×1500	8500	37
35	GD-420/8-39	6500	420	0.8	3.9	3600×2500×1700	6000	75
36	GD-370/20-200	4500	370	2.0	20	3600×2200×1700	5000	75
37	GD-350/18-210	4500	350	1.8	21	3600×2200×1700	5000	75
38	GD-300/8-120	4500	300	0.8	12	3600×2200×1700	5000	75
39	GD-308/4	10000	308	0	0.4	4200×3200×2600	10000	55
40	GD-180/8.5	5000	180	0	0.85	4200×3200×2600	10000	55