- ✅ 100% Oil-Free Compression
- ✅ High Safety for Explosive Gases
- ✅ High Purity Output Gas
- ✅ Suitable for Continuous Operation
- ✅ Custom Design Available
We are proud to have been awarded a number of international recognitions and certifications. We are dedicated to bringing you the best possible product, service, and after-sales support.
If you are looking for a reliable and professional company to help you with your industrial automation needs, we would like to invite you to visit our website or contact us directly for more information.
Thank you for choosing us!
Best regards,
WEISIDUN
Why Choose Our Diaphragm Gas Compressors?
Our diaphragm compressors are designed for high-purity and high-pressure gas applications, ensuring zero contamination and maximum safety.
- ⚠️ 0% cross-contamination
- ✅ 24/7 reliability
- 🟢 fully customizable
| # | Model | Flow (Nm³/h) | Inlet (MPaG) | Disch. (MPaG) | Water (L/h) | Speed (r/min) | Power (kW) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | GZ1-0.01/15-150 | 0.01 | 1.5 | 15 | 100 | 225-450 | 1.1 | 1200×780×900 | 400 |
| 2 | GZ1-5/13 | 5 | ATM | 1.3 | 200 | 450 | 1.5 | 1100×600×950 | 400 |
| 3 | GZ1-5/13-200 | 5 | 1.3 | 20 | 200 | 450 | 1.5 | 1100×600×950 | 400 |
| 4 | GP1-50/90-95 | 50 | 9.0 | 9.5 | 400 | 500 | 3 | 1200×780×900 | 400 |
| 5 | GP1-6/10 | 6 | ATM | 1.0 | 600 | 600 | 4 | 1200×780×900 | 400 |
| 6 | GZ1-70/30-35 | 70 | 3.0 | 3.5 | 200 | 400 | 4 | 1100×600×950 | 450 |
| 7 | GD1-150/90-95 | 150 | 9.0 | 9.5 | 400 | 600 | 3 | 1350×600×950 | 550 |
| 8 | GD1-8.6/0.5-40 | 8.6 | 0.05 | 4.0 | 300 | 600 | 4 | 1470×600×950 | 550 |
| 9 | GL1-15/10-220 | 15 | 1.0 | 22 | 500 | 550 | 5.5 | 1350×600×950 | 560 |
| 10 | GI1-20/20-200 | 20 | 2.0 | 20 | 500 | 600 | 5.5 | 1350×600×950 | 560 |
| # | Model | Flow (Nm³/h) | Inlet (MPaG) | Disch. (MPaG) | Water (L/h) | Speed (r/min) | Power (kW) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | GZ2-10/10-150 | 10 | 1.0 | 15 | 400 | 420 | 4 | 1400×850×1150 | 800 |
| 2 | GZ2-15/13 | 15 | ATM | 1.3 | 400 | 400 | 4 | 1400×850×1150 | 800 |
| 3 | GZ2-15/13-200 | 15 | 1.3 | 20 | 400 | 400 | 4 | 1400×850×1150 | 800 |
| 4 | GP2-50/4-10 | 50 | 0.4 | 1.0 | 400 | 430 | 5.5 | 1400×850×1150 | 800 |
| 5 | GZ2-12/160-1000 | 12 | 16 | 100 | 500 | 400 | 5.5 | 1400×850×1150 | 800 |
| 6 | GZ2-120/8-16 | 120 | 0.8 | 1.6 | 600 | 400 | 4 | 1100×600×950 | 450 |
| 7 | GZ2-100/15-80 | 100 | 1.5 | 8.0 | 900 | 430 | 11 | 1700×850×1150 | 900 |
| 8 | GL2-20/200 | 20 | ATM | 20 | 700 | 400 | 7.5 | 1700×850×1150 | 1100 |
| 9 | GL2-30/4-350 | 30 | 0.4 | 35 | 1000 | 420 | 11 | 1700×850×1150 | 900 |
| 10 | GD2-60/30-400 | 60 | 3.0 | 40 | 1000 | 400 | 11 | 1700×850×1150 | 850 |
| # | Model | Flow (Nm³/h) | Inlet (MPaG) | Disch. (MPaG) | Water (L/h) | Speed (r/min) | Power (kW) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | GZ3-600/83-85 | 600 | 8.3 | 8.5 | 600 | 300 | 7.5 | 2400×2400×2000 | 3400 |
| 2 | GZ3-50/10-150 | 50 | 1.0 | 15.0 | 1000 | 400 | 11 | 2400×1400×2000 | 3500 |
| 3 | GZ3-40/30-400 | 40 | 3.0 | 40.0 | 1000 | 400 | 11 | 2400×2400×2000 | 3400 |
| 4 | GP3-50/3 | 50 | ATM | 0.3 | 1000 | 450 | 11 | 2400×2400×2000 | 3400 |
| 5 | GP3-340/4-10 | 340 | 0.4 | 1.0 | 1500 | 450 | 18.5 | 2800×1400×2000 | 3600 |
| 6 | GL3-50/5-160 | 50 | 0.5 | 16.0 | 2000 | 400 | 30 | 2800×1600×2000 | 4200 |
| 7 | GL3-80/7-320 | 80 | 0.7 | 32.0 | 2500 | 400 | 30 | 2800×1600×2000 | 4000 |
| 8 | GL3-80/4-350 | 80 | 0.4 | 35.0 | 2800 | 400 | 30 | 2800×1600×2000 | 4200 |
| 9 | GD3-100/9.5-200 | 100 | 0.95 | 20.0 | 2800 | 420 | 30 | 2800×1600×2000 | 4200 |
| 10 | GD3-200/9-120 | 200 | 0.9 | 12.0 | 4000 | 420 | 45 | 2800×1600×2000 | 5500 |
| # | Model | Flow (Nm³/h) | Inlet (MPaG) | Disch. (MPaG) | Water (L/h) | Speed (r/min) | Power (kW) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | GP4-1175/48-62 | 1175 | 4.8 | 6.2 | 2500 | 420 | 30 | 3800×2600×1800 | 8000 |
| 2 | GD4-170/0.3-8 | 170 | 0.03 | 0.8 | 3000 | 420 | 37 | 4000×2850×2000 | 10800 |
| 3 | GD4-90/200 | 90 | ATM | 20 | 3200 | 430 | 45 | 4000×2850×2000 | 10800 |
| 4 | GD4-105/0.1-29 | 105 | 0.01 | 2.9 | 4000 | 420 | 45 | 3800×2600×2100 | 10000 |
| 5 | GD4-200/0.1-6 | 200 | 0.01 | 0.6 | 4000 | 420 | 45 | 4200×2600×2100 | 14000 |
| 6 | GD4-150/1.5-150 | 150 | 0.15 | 15 | 4000 | 430 | 55 | 3800×2600×1800 | 9000 |
| 7 | GD4-200/15-350 | 200 | 1.5 | 35 | 4600 | 360 | 55 | 3800×2600×1800 | 9000 |
| 8 | GD4-225/9-200 | 225 | 0.9 | 20 | 5000 | 420 | 55 | 3800×2600×1800 | 9500 |
| 9 | GD4-800/12-40 | 800 | 1.2 | 4.0 | 5400 | 400 | 75 | 3800×2600×1800 | 9200 |
| 10 | GD4-570/28-220 | 570 | 2.8 | 22 | 7500 | 360 | 90 | 4200×2600×2100 | 14000 |
| # | Model | Flow (Nm³/h) | Inlet (MPaG) | Disch. (MPaG) | Water (L/h) | Speed (r/min) | Power (kW) | Dimensions (mm) | Weight (kg) | Remark |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | GD5-500/6-210 | 500 | 0.6 | 21 | 10000 | 420 | 110 | 4300×3200×2200 | 14000 | Filling |
| 2 | GD5-750/6-210 | 750 | 0.6 | 21 | 12000 | 420 | 160 | 4300×3200×2200 | 16000 | Filling |
| 3 | GD5-750/15-210 | 750 | 1.5 | 21 | 10000 | 420 | 110 | 4300×3200×2200 | 14000 | Filling |
| 4 | GD5-1000/15-210 | 1000 | 1.5 | 21 | 12000 | 420 | 160 | 4300×3200×2200 | 16000 | Filling |
| 5 | GD5-1250/15-210 | 1250 | 1.5 | 21 | 15000 | 420 | 160 | 4300×3200×2200 | 15000 | Filling |
| 6 | GD5-1000/20-210 | 1000 | 2.0 | 21 | 12000 | 420 | 160 | 4300×3200×2200 | 16000 | Filling |
| 7 | GD5-750/20-210 | 750 | 2.0 | 21 | 11000 | 420 | 132 | 4300×3200×2200 | 15000 | Filling |
| 8 | GD5-1250/20-210 | 1250 | 2.0 | 21 | 15000 | 420 | 160 | 4300×3200×2200 | 16000 | Filling |
Diaphragm gas compressors are a type of reciprocating positive displacement compressor known for their excellent sealing performance, high compression ratio, wide pressure range, and ability to achieve very high discharge pressures. They are widely used for oil‑free, leak‑tight gas compression and gas transportation of specialty gases including hydrogen (H₂) , oxygen (O₂) , and nitrogen (N₂) . Key industries that rely on diaphragm compressors include pharmaceuticals, nuclear power, chemical processing, military, petroleum, and electronics manufacturing.
Tell us your requirement and get a fast quotation within 2 hours.
FAQ
After years of R&D, our company has developed and launched five series of diaphragm compressors for various applications. However, the exact model selection requires a theoretical calculation based on your actual operating parameters, including:
Inlet and outlet pressure (MPa or bar)
Flow rate (Nm³/h or kg/day)
Gas composition (e.g., hydrogen, nitrogen, helium)
Inlet temperature (°C)
Desired discharge temperature
Diaphragm compressors are custom‑engineered products tailored to each customer’s specific requirements. The final price depends on optional configurations and upgraded specifications. Contact us with your parameters for a customized quote.
We have extensive experience providing hydrogen compressor solutions for water electrolysis hydrogen production systems and have participated in numerous large‑scale projects worldwide. Our diaphragm compressors are ideal for high‑purity hydrogen compression (up to 99.999%) without oil contamination, meeting the demanding requirements of electrolysis systems and chemical synthesis processes like formaldehyde production. We can help you select the right model based on your H₂ flow rate, inlet/outlet pressure, and operating conditions.
The recommended lubricating oil for our Model G3 diaphragm compressor is a high‑quality paraffinic base oil blended with advanced additives for:
Excellent anti‑wear performance
Outstanding oxidation resistance and demulsibility
Superior anti‑foaming properties and rust protection
Strong compatibility with nitrile rubber (NBR) and other common sealing materials
These properties have been validated through rigorous hydraulic pump tests and field trials. For the specific oil grade, technical data sheet (TDS), and purchase arrangements, please contact WEISIDUN directly – our support team will assist you promptly.
To provide an accurate custom quotation, please share the following 10 parameters:
Compressed medium and gas composition (e.g., H₂, N₂, He, Ar, natural gas)
Flow rate (Nm³/h or kg/day)
Inlet pressure (barG or MPa)
Outlet pressure (barG or MPa)
Gas inlet temperature (°C)
Gas outlet temperature (°C) – if required
Cooling method (air‑cooled, water‑cooled, or other)
Application / device used for (e.g., hydrogen refueling, chemical synthesis, gas filling)
Voltage and frequency (e.g., 380V/50Hz/3ph, 460V/60Hz/3ph)
Electrical control requirements (e.g., local panel, remote start, explosion‑proof, PLC)
With these details, our engineers can recommend the right diaphragm compressor model and provide a competitive quotation within 24 hours.
Or contact us directly via WhatsApp for faster response
Tell Us Your Hydrogen Compression
Requirements – Get a Custom Solution
Special Gas Filling – Ultra‑High Purity & Electronic Specialty Gases
Industrial gases are classified into bulk gases and specialty gases based on preparation method and application. Specialty gases include high‑purity gases, standard gases, and electronic specialty gases – the latter being essential for manufacturing integrated circuits (ICs) , display panels, photovoltaics, and LEDs.
Core production processes include: synthesis, purification, mixing, cylinder processing, and pressure‑differential filling.
Purity improvement remains a key technical bottleneck. IC manufacturing requires ultra‑high purity electronic specialty gases because even trace impurities can cause defects. Higher purity directly improves yield and device performance. As IC precision continues to advance, purity demands become increasingly stringent.
✅ Relevant equipment: Diaphragm compressors for high‑purity gas compression, cylinder filling, and contamination‑free gas transport in specialty gas production.
Petrochemical Industry – Compressing Hydrogen, Nitrogen, Oxygen & CO₂
Petrochemicals are a vital part of the chemical industry and play a key role in national economic development. The petrochemical process uses petroleum and natural gas as raw materials, starting with the cracking of feedstocks such as propane, gasoline, and diesel.
Diaphragm compressors are widely used in petrochemical applications to compress various raw materials and process gases, including:
Hydrogen (H₂) for hydrotreating and hydrocracking
Nitrogen (N₂) for blanketing and inerting
Oxygen (O₂) for oxidation processes
Carbon dioxide (CO₂) for enhanced oil recovery and urea production
They also provide reliable gas transport and pressure control throughout the production chain – with oil‑free, leak‑tight, and high‑purity compression being critical advantages.
Hydrogen Refueling Station – Ultra‑High Purity H₂ Compression (99.999%)
The earliest hydrogen refueling stations date back to the 1980s at the Los Alamos National Laboratory (USA) , built to test liquid hydrogen as a viable fuel. Since then, hydrogen refueling infrastructure has expanded rapidly worldwide.
The development of hydrogen energy relies on technological innovation and a complete industrial chain – from production to end use.
Diaphragm compressors are critical components in:
Hydrogen production (electrolysis, SMR)
Hydrogen storage (high‑pressure cylinders, cascade storage)
Hydrogen transportation (tube trailers)
Hydrogen refueling stations (dispensers for FCEVs)
Hydrogen utilization (fuel cells, industrial processes)
Diaphragm compressors can compress hydrogen to ultra‑high purity (typically 99.999%) without oil contamination, meeting the strict requirements of fuel cell vehicles and industrial applications.
Fine Chemical Industry – High‑Purity Gas Compression for Specialty Chemicals
Fine chemicals are characterized by:
Low investment but high returns
High profit margins and high added value
High knowledge intensity and long patent protection periods
Small‑batch, diversified production
In China, the fine chemical industry covers 11 major categories, including:
Pesticides, dyes, coatings (paints & inks), pigments
Reagents and high‑purity substances
Information chemicals (photosensitive materials, magnetic materials)
Food and feed additives
Adhesives, catalysts, auxiliaries
Pharmaceutical raw materials and daily chemicals
Functional polymer materials (functional films, polarizing materials)
Diaphragm compressors are used to compress high‑purity gases (e.g., H₂, N₂, Ar, He) and corrosive or reactive gases without leakage or contamination – essential for fine chemical synthesis and handling.
Military & Nuclear Power – Leak‑Tight Compression for Helium, Nitrogen & Oxygen
Military nuclear power plays a critical role in national defense, including the R&D and production of nuclear weapons such as atomic bombs, hydrogen bombs, and nuclear submarines. Beyond weapons, military nuclear technology also enables the peaceful use of nuclear energy – e.g., the construction and operation of nuclear power plants.
Nuclear power is not only vital to national security but also a major driver of energy structure transformation and economic development.
Diaphragm compressors are used in nuclear power production to compress various gases and liquids, including:
Helium (He) for reactor cooling
Nitrogen (N₂) for inerting and purging
Oxygen (O₂) for specific processes
Their leak‑tight, oil‑free, and high‑purity design ensures safe, reliable operation in radiation‑sensitive and hazardous environments.
Food & Pharmaceutical Industry – Oil‑Free, Contamination‑Free Gas Compression
Food industry requirements:
The food industry needs oil‑free, pollution‑free gases for production and packaging.
Diaphragm compressors provide a high‑quality gas supply to ensure food safety. They are also used to compress food raw materials (e.g., milk powder) and pharmaceutical intermediates, while controlling gas transport and pressure during production.
Pharmaceutical industry requirements:
The pharmaceutical industry demands high‑purity, oil‑free, contamination‑free gases for manufacturing.
Diaphragm compressors deliver such gas supply – meeting GMP and cGMP standards for applications like:
API (active pharmaceutical ingredient) synthesis
Blister packaging with nitrogen
Cleanroom atmosphere control
Inert gas blanketing for oxygen‑sensitive materials
Scientific Research Experiments – Ultra‑High Pressure (up to 200 MPa) & Nanotechnology
Diaphragm compressors are widely used in scientific research for:
Ultra‑high pressure testing equipment – reaching maximum pressures of 200 MPa (2000 bar) for material characterization and component validation.
Pilot‑scale and small‑scale compressors in chemical plants for process development and catalyst testing.
Nanotechnology applications – precisely compressing and transporting high‑purity gases (e.g., Ar, He, H₂) to support the preparation of nanomaterials and nanodevice research.
Advantages of diaphragm compressors in research:
Oil‑free operation – no contamination of sensitive samples
Leak‑tight design – essential for toxic or rare gases
High purity preservation – maintains gas quality from source to point of use
CASE
Full skid-mounted diaphragm gas compressor designed for high-pressure hydrogen and CO₂ applications, ensuring stable and oil-free operation.
Designed for demanding industries such as hydrogen energy, petrochemical processing, and gas filling systems.
Real production environment of diaphragm gas compressor units, demonstrating our manufacturing capability and quality standards.
We provide customized diaphragm gas compressors based on different gas types, pressure levels, and flow requirements.
This diaphragm compressor is specifically engineered for high-pressure gas applications such as hydrogen compression, CO₂ recovery, and specialty gas handling, ensuring safety, reliability, and long-term performance.
Robust structure and precision-engineered components ensure safe compression of high-purity and hazardous gases.
- ✅ 15+ years of diaphragm gas compressor expertise
- ✅ Custom design for any gas type (H₂, N₂, O₂, specialty gases)
- ✅ 0-200 MPa pressure range, 99.999% purity available
- ✅ Free technical consultation & lifetime support