Your Leading Diaphragm Compressor Manufacturer in China
With our widest range of diaphragm compressor models, you can always find a suitable model for your most stringent application. Comair diaphragm compressors are from 3 HP (2 kW) to 460 HP (350 kW), with discharging pressures of 50 PSI (3.4 barg) to 43,511 PSI (3,000 barg) and flow rates of 1 Nm3/hr to 2,400 Nm3/hr, depending on the inlet pressure.
Following the highest industrial safety standards, you can always trust our diaphragm compressor, which is strictly API618 certified and ATEX certified. It is a perfect choice for your flammable and combustible gases!
Our first diaphragm compressor was manufactured in 1985. Till now, our diaphragm compressors have been widely used and accepted in most commonly seen industries and applications. You can always get our successful references in your applications!
Diaphragm Compressor by Applications

Completely oil-free for the highest hydrogen purity; diaphragm membrane of over 16,000 hours running life; up to 100 bar with zero leakage design.

Excellent high-pressure topping performance, zero leakage with minimal maintenance, and long-term stable performance.

Zero leakage and safe, stable, continuous operation while discharging the highest purity hydrogen under extremely high pressure.
Totally oil-free and particle-free compression for the highest purity gas discharging with ultra-low leakage and long mean time between failures.

Zero leakage with long-term stable performance; highest safety standards with corrosion-proofing materials.

Hermetically sealed design with zero leakage and remote control, providing high purity and ultra-safe compressing.

Leak-tight compression, chemical compatibility, 100% oil free compression, discharging ultra-high pressure with low maintenance requirements.

Food-grade oil-free compressing, safeguarding your production equipment as well as your hard-won fame.
Diaphragm Compressor by Compressing Gases

100% oil free compression, large flow rate of 2000 Nm3/hr, up to 1000 bar hydrogen compression with stable capacity.

Hermetically sealed helium compressor, providing you with long-term stable operation with zero leakage.

Long-term stable oil-free compression for your complex application conditions.

Ultra high purity gas compression ensuring 100% oil free and particle-free environment for your sensitive electronic products.

Leak-tight gas compression safeguards your personnel as well as your production facilities.

100% oil free & particle-free compression without any hydrocarbon contamination. Safely compressing high-pressure oxygen for your applications.

Oil-free nitrogen compression, ensuring your applications and final products are not polluted or contaminated.

Ultra-low leakage compression with proven reliable long-term running and minimal maintenance work.
Comair Diaphragm Compressor, From Strongest Manufacturing Power
Comair has generated great manufacturing power of diaphragm compressors over the last forty years of development and growth. We have dozens of leading-edge machines, including a VMC 1600B vertical machining center, a THP6511B horizontal machining center, a Siemens CNC lathe, and a CNC deep-hole drill. Moreover, we have a complete quality inspection process and equipment, including a Spectrometer, Ultrasonic Flaw Detector, and Rockwell Hardness Tester. We ensure every diaphragm compressor is delivered with the highest quality and performance standards.


Comair Diaphragm Compressor, Highest Sealing Performance
Comair diaphragm compressors are designed with the highest sealing performance, and their cylinders don’t require any lubrication. As a result, compressing gases will not come into contact with any lubricant. The compressing process doesn’t have any contamination and pollution, which makes our diaphragm compressors a perfect choice for the compressing of high-purity, precious, and rare, extremely corrosive, toxic, and harmful, flammable and explosive, and radioactive gases.
Highest Service Level Guaranteed For Your Diaphragm Compressor
After you buy Comair diaphragm compressors, you will be free of worries in using them. Our professional service & maintenance team will provide fully dedicated personal service to your compressor; a clear and technical response will be made within 4 hours after receiving your problem; after-sales service is ready 24/7 days every week; genuine parts are ready for delivery to lower your running costs and to maximize compressor efficiency; customized and standard diaphragm compressor training will be conducted for your staff.

The Comair diaphragm compressor is a complicated machine and is a project-based and customized solution. Its price is influenced by several aspects, including flow rate, inlet pressure, discharging pressure, installation types, and other design points. If your company requires any diaphragm compressors, please feel free to contact us!
Comair is surely one of the leading professional diaphragm compressor manufacturers. Our factory covers an area of 150 acres with professional and strong production and processing capacity, as well as complete supporting technical testing equipment and methods. We have over 40 professional engineers dedicated to diaphragm compressor innovation, manufacturing, and testing. You will never be disappointed with Comair if you choose our diaphragm compressors.
After over 4o years of development and growth, Comair diaphragm compressors have been widely used in the major industries and applications. Some major usages of Comair diaphragm compressors include hydrogen refueling stations, chemical and petrochemical, oil & gas, specialty gases, power generation, pharmaceutical, food & beverage. Please forward to us your application and requirements so our professionalism can support you!
Comair diaphragm compressors have undergone continuous development and innovations and now have their own unrivaled advantages. Firstly, non-contaminating compressing with oil totally separated from your process gas ensures the greatest gas purity and operating safety; Secondly, Comair diaphragm compressors are 100% leak-free. Your precious gases will not be wasted and leaked into the environment at all. Thirdly, they are designed to be energy efficient. We can install the variable frequency drive on the compressor, providing energy-efficient part-load operation at 40%-100%. For more advantages, please contact our engineers!
Comair diaphragm compressors have been successfully used for various kinds of gases or gas mixtures, and the clients show great satisfaction with their performance and quality. They have been used for high-purity gas compressing, including nitrogen, helium, and argon, for toxic gases like carbon monoxide, for explosive gases like hydrogen, ethylene, and methane, for reactive gases including oxygen, chlorine, and fluorine, and for high-value gases such as neon, krypton, and xenon.
Comair diaphragm compressors will be under thorough test before being delivered to our clients. All the compressors will be tested for over 48 hours continuously to ensure all the performance parameters meet their regulated standards. During this testing procedure, we could invite you to see their performance and running data.
Related Product
Comair oil free piston compressors offer you a safe and oil free compressed air with lowest possible total cost of ownership.




