Compressor valve steel

Strip steel

Hardened and tempered strip steel for manufacturing many types of valves:

Compressor valves, reed valves, check valves, flapper valves, relief and relieve valves, explosion valves, diaphragms, lamellas, emergency valves, shutting and shut-off valves. They are used in, among others, the following applications:

Compressor valve steel
  • Air conditioning equipment
  • Brake systems
  • Heat pumps
  • Industrial air compressors
  • Refrigerators and freezers
  • Vacuum pumps

Increased design freedom with our premium compressor valve products Freeflex® and Hiflex™

Our premium compressor valve steels enable higher valve lift, leading to increased compressor efficiency. Reduced length of valve with maintained lift enables miniaturization of the valve.

They are well suited for use in compressors where higher pressures, frequencies and temperatures place increasing demands on the valve.

List of materials - compressor valve steel

Grade Description
Freeflex® A hardened and tempered martensitic stainless compressor valve steel alloyed with copper with excellent dimensional tolerances and flatness.
Hiflex™ A new generation of high-fatigue resistance stainless chromium steel giving design freedom for valves in high-frequency and high-pressure compressors.
Alleima® 7C27Mo2 A martensitic stainless chromium steel alloyed with molybdenum that has higher fatigue strength than our 20C.
Alleima® 20C A carbon steel with 1% carbon offering high fatigue strength.

Tensile strength and thicknesses for our compressor valve steel

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