Search
Close this search box.

Single Blog

Home / Single Blog

How Does a Diaphragm Compressor Work

Discover the Structure, Benefits, and Our Proven GZ-500/16-29 Model

In the hydrogen energy industry, where gas purity, leak-free performance, and explosion-proof safety are paramount, diaphragm compressors have emerged as the most trusted technology for high-pressure gas handling.

But how exactly does a diaphragm compressor work? What makes it better than other types of compressors for hydrogen applications?

Let’s break it down—with real data from our GZ-500/16-29 model, already used in global hydrogen projects.


⚙️ How Does a Diaphragm Compressor Work?

A diaphragm compressor compresses gas using flexible metal diaphragms rather than pistons. The diaphragm is hydraulically actuated—moved back and forth by a plunger that is powered by a crankshaft and motor. Gas is compressed in a completely sealed chamber, never coming into contact with oil or lubricants.

This makes it the ideal choice for ultra-pure, flammable, or toxic gases, such as hydrogen.

🔩 Main Components of a Diaphragm Compressor

  • Gas-end chamber: The area where hydrogen is compressed—100% leak-tight and oil-free.

  • Metal diaphragm (usually stainless steel): Provides flexible movement to compress the gas.

  • Hydraulic oil system: Drives the diaphragm with consistent force.

  • Crankshaft and motor drive system: Converts electric motor energy into reciprocating motion.

  • Cooling system: Often water-cooled to maintain stable temperature under high pressure.

  • Safety valves and sensors: Prevent overpressure and ensure system integrity.

All components are housed in a compact, explosion-proof frame, with customizable features depending on application needs.


💡 What Pain Points Do Hydrogen Engineers Face?

ChallengeOur Diaphragm Compressor Solution
Gas purity risk from oil-lubricated compressorsFully oil-free diaphragm chamber
Leakage or safety hazards100% sealed, leak-proof gas end
Complex setup and scattered systemsAll-in-one integrated skid design
High power usage and overheatingWater-cooled system + 18.5KW efficient shaft power
Explosion safety requirements22KW ATEX-compliant EX motor

🚛 GZ-500/16-29: Real-World Example for Hydrogen Systems

This Keepwin diaphragm compressor is trusted by clients worldwide for electrolyzer hydrogen boosting:

  • Flow Rate: 500 Nm³/h

  • Inlet Pressure: 1.6 MPa

  • Discharge Pressure: 2.9 MPa

  • Motor: 22KW EX (Explosion-Proof)

  • Shaft Power: 18.5KW

  • Cooling: Water-cooled

  • Compression Structure: Z-type, single-acting diaphragm

  • Application: Downstream of hydrogen production lines, pipeline injection, storage tank filling, and mobile fueling modules


Why Choose Keepwin for Hydrogen Compression?

  • 20+ years of manufacturing experience

  • CE/ATEX compliant for international markets

  • Precision-built for zero contamination and zero leakage

  • Full technical support and long-term service

  • Proven in Middle East, Europe, Asia-Pacific hydrogen projects


🔍 Still Using Piston or Screw Compressors for Hydrogen? Here’s Why You Should Upgrade

If your application demands gas purity, safety, and stable high-pressure performance, diaphragm compressors are the industry standard—and Keepwin delivers cost-effective, globally proven solutions.


📎 Download Our GZ-500/16-29 Datasheet Now

[📥 Click to Download PDF]
[📞 Request a Custom Quote]
[🌐 www.keep-win.com]

Share This Article :
Picture of John Hannah

John Hannah

In pharetra ac ligula sed luctus. Nam efficitur malesuada ante sit amet pharetra. Quisque vulputate eu leo at pharetra. Aliquam et est et ipsum ullamcorper volutpat at non risus. Nulla facilisi.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Get Compressor solution

We will arrange for a professional engineer to design a solution to suit your needs.

*We respect your privacy. Upon submission, our dedicated Keepwin specialists will get in touch at their soonest availability.