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Reliable, Contamination-Free Gas Compression

Engineered for sensitive and high-purity gas applications, delivering leak-free, oil-free compression for industrial, chemical, and energy processes.
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Diaphragm Gas Compressor

We provide fully integrated, end-to-end industrial solutions covering the entire product lifecycle. From initial R&D and engineering design to manufacturing processes such as casting, machining, welding, and assembly, we ensure strict quality control at every stage. Each product then undergoes comprehensive testing before delivery.

 

Our services continue beyond manufacturing, including installation, commissioning, start-up support, operator training, preventive maintenance, and responsive after-sales service (SAV). This complete value chain ensures reliable performance, long service life, and maximum operational efficiency for our customers worldwide.

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Feature

  • API Compliant
    Fully meets international API standards for reliability and performance.
  • Customized Solutions
    Tailor-made configurations to meet specific industry or project requirements.
  • Zero Leakage
    Diaphragm design ensures leak-free operation for sensitive and high-purity gases.
  • Ultra-High Purity Gas Compatibility
    Suitable for 6N–7N (99.9999–99.99999%) ultra-high purity gas applications.

Standard

Specific Model Parameter Table

DH1&DH2&DH3 Series-Medium & Small-size Diaphragm Compressor

 

Modek Volume Flow
(Nm³/h)		 Inlet Pressure
( Mpa(G) )		 Discharge Pressure
( Mpa(G) )		 Weight
(kg)		  
DHL-16/0.02-5 16 0.002 0.5 Alkanes Exhaust

DHZ-9/1-3 9 0.1 0.3 Hexafluoropropane
DHL-10/2-200 10 0.2 20.0 Krypton Xenon
DHL-32/1-24.5 32 0.1 2.45 Carbon Dioxide
DHZ-150/12-200 150 1.2 20.0 Carbon Oxide
DHZ-40/7-65 40 0.7 6.5 Hydrogen Chloride
DHL-15/0.1-200 15 0.01 20.0 Neon

DH5 Series-Large-medium-size Diaphragm Compressor

 

Modek Volume Flow
(Nm³/h)		 Inlet Pressure
( Mpa(G) )		 Discharge Pressure
( Mpa(G) )		 Weight
(kg)		 Application Areas
DHD-500/16-220 500 1.4～1.8 22.0 Hydrogen

DHD-500/125-450 500 5～20 45.0 Hydrogen
DHD-100/0.1-15 100 0.01 1.5 Phosphorus Pentafluoride

DH7 Series Diaphragm Compressor-Large-size Diaphragm Compressor

 

Modek Volume Flow
(Nm³/h)		 Inlet Pressure
( Mpa(G) )		 Discharge Pressure
( Mpa(G) )		 Weight
(kg)		  
DHD-1000/16-220 1000 1.4～1.8 22.0 Hydrogen

DHD-1000/125-450 1000 5～20 45.0 Hydrogen
DHD-600/1-5 600 0.1 0.5 Hydrogen Chloride

Industry & Application

Hydrogen Energy & Hydrogen Refueling Station

High-pressure (up to 1000 bar) reciprocating or diaphragm compressors for hydrogen boosting and cascade storage; ensures leak-tight, contamination-free compression with advanced sealing materials, automated cooling, and rapid refueling protocols for fuel-cell vehicles, stationary power, and industrial hydrogen supply, with rigorous safety interlocks for explosive atmospheres.

Rare Gas Filling (Noble Gas Filling)

Precision diaphragm or oil-free reciprocating compression for helium, neon, argon, krypton, and xenon cylinder filling and blending; delivers ultra-high-purity gas with minimal cross-contamination, incorporating leak-tested stainless steel components, low-pulsation dampening, and certified clean-room assembly for electronics, lighting, and specialty laboratory applications.

Fluorochemical Industry

Corrosion-resistant compression for anhydrous hydrogen fluoride (AHF), fluorine gas, and fluorocarbon refrigerants/propellants; employs nickel-alloy or Monel-lined reciprocating compressors with dry-gas seals and double containment to handle aggressive, toxic media at moderate to high pressures, ensuring safe, leak-free operation in alkylation, fluoropolymer, and specialty chemical production.

Polysilicon Industry

High-purity compression for trichlorosilane (TCS), silane, and hydrogen recycle in Siemens or fluidized-bed reactor processes; provides oil-free, contamination-sensitive boosting with heat-resistant sealing, high-temperature intercoolers, and strict moisture/oxygen exclusion, enabling continuous deposition of electronicgrade or solar-grade polysilicon with consistent reactor pressure and gas distribution.

Fine Chemical Industry

Flexible, multi-duty compression for specialty synthesis, hydrogenation, and oxidation reactions; offers clean, pulsation-controlled air or process gas boosting for batch and continuous reactors, with corrosion-resistant construction, precise pressure regulation, and low oil carryover to maintain product purity and yield in pharmaceutical intermediates, dyes, and high-value additives.

Pharmaceutical Industry

Sterile, 100% oil-free compressed air for tablet coating, capsule filling, fermentation, and API synthesis; incorporates microbial filtration, dryers, and validated contaminant monitoring to meet cGMP and ISO 8573-1 Class 0, ensuring reliable instrument air, pneumatic conveying, and process gas for active ingredient manufacturing, with full traceability and alarm systems.

Pesticide Industry

Robust compression for synthesis of organophosphates, pyrethroids, and chlorinated intermediates; handles corrosive and toxic feedstocks with corrosion-resistant materials (Hastelloy, titanium), dry-running seals, and remote monitoring, providing stable air and nitrogen boosting for chlorination, phosphorization, and solvent recovery processes, with emphasis on operator safety and emission control.

After-Sales Service capability

After-sales Service Personnel Own authorized service engineers trained by ARIEL, DRESSER RAND, COOPER for compressors and CATERPILLAR, WAUKESHA for engines.

Electrical Engineers CompEx certified, and qualified to work in explosion protection areas.

Howden full series.

Reference Project

  • 22MPa hydrogen filling compressor</br>low vibration, high reliability, guaranteed membrane service life, no negative </br>flow tolerance, oil station built-in, energy efficient, reliable lubrication</br><b>Compressor Model: GD4</b>
    22MPa hydrogen filling compressor
    low vibration, high reliability, guaranteed membrane service life, no negative
    flow tolerance, oil station built-in, energy efficient, reliable lubrication
    Compressor Model: GD4
  • Application: Hydrogen Station</br>Hydrogen resistant material </br>Cylinder head vibration measured at 2.8mm/s</br><b>Model: GP3-200/100-450</b>
    Application: Hydrogen Station
    Hydrogen resistant material
    Cylinder head vibration measured at 2.8mm/s
    Model: GP3-200/100-450
  • Electronic special gas project, the first application in domestic for 2.5MPa ultra-high pressure high-purity fluorine gas compressor; EP piping, low leakage valves, membrane head metal gasket sealing, ultra-low leakage rate.
    Electronic special gas project, the first application in domestic for 2.5MPa ultra-high pressure high-purity fluorine gas compressor; EP piping, low leakage valves, membrane head metal gasket sealing, ultra-low leakage rate.
  • Trichlorosilane Construction Project </br>Compression efficiency was increased from 40% to 65% through optimizing traditional four-cylinder heads to double-cylinder heads </br>Membrane dia.:＞1m</br><b>Compressor Model: GD4/GD7</b>
    Trichlorosilane Construction Project
    Compression efficiency was increased from 40% to 65% through optimizing traditional four-cylinder heads to double-cylinder heads
    Membrane dia.:＞1m
    Compressor Model: GD4/GD7
  • Hydrogen supercharger for production of ethylene amine </br>The combination of compressor unit design and process flow contributes to avoid gas liquefaction during compression process. Membrane service life increased to 6,000h from 200h.</br><b>Compressor Model: GD4</b>
    Hydrogen supercharger for production of ethylene amine
    The combination of compressor unit design and process flow contributes to avoid gas liquefaction during compression process. Membrane service life increased to 6,000h from 200h.
    Compressor Model: GD4
  • Silane purity 99.9999%, helium leakage test 6×10-9 Pa-m³/s, membrane head vibration value ＜2.0mm/s</br><b>Compressor Model: GL0/GL2</b>
    Silane purity 99.9999%, helium leakage test 6×10-9 Pa-m³/s, membrane head vibration value ＜2.0mm/s
    Compressor Model: GL0/GL2

After-Sales Service Scope