Precision Manufacturing, Built on Quality

Diaphragms engineered for compressors

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Our Materials

MATERIALS
Super martensitic stainless steel diaphragm
Stainless Steel

Super Martensitic Stainless Steel

316L austenitic stainless steel diaphragm
Stainless Steel

Austenitic Stainless Steel

Inconel 718 nickel-based superalloy diaphragm
Superalloy

Nickel-Based Superalloy (Inconel 718)

A range of diaphragm materials and finishes
Custom Grade

Custom Diaphragms

Brass diaphragm
Copper Alloy

Brass

Hastelloy diaphragm
Corrosion-Resistant Alloy

Hastelloy

Company facility

A Manufacturer Built Around Compressor Mebrane

Founded in June 2014 in Fushun, Liaoning — a city with deep roots in China's major heavy-industry — Longheng focuses on the design and manufacture of mebrane for diaphragms compressors. Our product line runs from standard industrial grades to fully customed designs, serving industries such as petrochemicals, coal chemicals, metallurgy, air power systems, and refrigeration.

We match every material and design to the operating conditions that our customers actually face, and we maintain a long-term joint research partnership with the Institute of Metal Research, Chinese Academy of Sciences — engineering reliability into every cycle that your equipment runs.

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Founded
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Factory Inspection Coverage
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Theoretical Service Life, Superalloy Diaphragms (hrs)
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Industries We Serve

APPLICATION FIELDS

Our diaphragms are used across petrochemicals, coal chemicals, metallurgy, air power systems, refrigeration, and other demanding industrial sectors

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Petrochemical

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Coal Chemical

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Metallurgy & Steel

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Air Power Systems

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Refrigeration

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Hydrogen Refueling

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Defense

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Nuclear Power

Need Help Choosing a Diaphragm Compressor Mebrane?

Our engineering team matches diaphragm material and design to your gas media, operating pressure, and temperature range

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