Handling process gases like Hydrogen, Natural Gas, Nitrogen, Oxygen, and CO₂ demands far more than standard air compression. It requires API 618/619 compliance, explosion-proof electrical systems, absolute hermetic sealing, and materials compatible with corrosive or reactive media.
ZIQI Process Gas Compressors are 100% engineered to order (ETO) — custom-designed to your specific gas composition, inlet/outlet pressures, flow rate, and safety requirements. We offer three proven compression technologies: oil-free piston boosters (up to 450 bar), diaphragm compressors (for ultra-pure and toxic gases), and process screw compressors (for high-volume, low-pressure applications). Every unit ships as a complete skid-mounted package — pre-piped, pre-wired, and factory-tested — ready for on-site installation.
For toxic and flammable gases, sealing is priority #1. ZIQI uses advanced mechanical seals and pressurized crankcases to ensure zero gas leakage to the environment — protecting both personnel and product purity.
Sealing: Double-acting mechanical seal / Magnetic coupling
Detection: Integrated gas detection probes with alarm relay
Purging: Nitrogen crankcase purge system for flammable gases
Testing: 100% helium leak tested before delivery
Engineered to meet the strictest global standards. All electrical components are explosion-proof rated for hazardous Zone 1 and Zone 2 areas — no compromises, no shortcuts.
Motor: Ex-proof VFD motor (Ex d II B/C T4)
Materials: Stainless steel piping / PTFE seals / Special alloy
Standards: API 618 (piston) / API 619 (screw) / ASME / PED
Certificates: CE / ATEX / ISO 9001 available
High pressure up to 450 bar. Multi-stage compression with intercooling. Ideal for H₂ refueling, N₂ boosting, PET blowing, and high-pressure test bench applications.
Absolute zero leakage — gas never contacts moving parts. Used for ultra-pure hydrogen, rare gases (He, SF₆), toxic media (HCl, Cl₂), and high-value pharmaceutical gases.
Large volumes at medium pressure (up to 40 bar). Best for biogas upgrading, landfill gas, CNG mother stations, CO₂ recovery, and natural gas gathering systems.
| Feature | Standard Air Compressor | ZIQI Process Gas Compressor |
|---|---|---|
| Sealing System | Standard shaft seal — minor leakage acceptable | Zero leakage — double seal / magnetic coupling |
| Materials | Cast iron / carbon steel | Stainless steel / PTFE / Hastelloy / special alloy |
| Motor Safety | IP54/IP55 — not rated for flammable atmospheres | Explosion-proof Ex d II B/C T4 (ATEX Zone 1/2) |
| Purity Control | Oil-filtered — traces of oil in air stream | 100% oil-free — zero contamination guaranteed |
| Gas Detection | Not available | Integrated gas leak sensors with alarm relay + auto-shutdown |
| Pressure Rating | Typically 7–16 bar | Up to 450 bar (6,500 psi) — multi-stage |
| Engineering | Standard catalog product | 100% custom — engineered to your exact process data |
| Delivery Format | Standalone machine | Complete skid-mounted package — pre-piped, pre-wired |
| Gas Type | Compressor Technology | Pressure Range | Flow Rate | Typical Applications | |
|---|---|---|---|---|---|
| Inlet | Discharge (Max) | Nm³/h | |||
| Nitrogen (N₂) / Inert Inert | Piston / Booster | 0.1 – 10 bar | Up to 350 bar | 10 – 2,000 | Laser cutting, food packaging, oil & gas, pipeline purge |
| Oxygen (O₂) Oxidizer | Oil-Free Piston | 0.3 – 6 bar | Up to 200 bar | 5 – 500 | Medical, steelmaking, wastewater treatment, glass cutting |
| Hydrogen (H₂) Flammable | Diaphragm / Piston | 0.5 – 200 bar | Up to 450 bar | 2 – 1,000 | H₂ refueling station, fuel cell, chemical synthesis, semiconductor |
| Natural Gas / CNG Flammable | Piston / Screw | 0.02 – 50 bar | Up to 250 bar | 50 – 5,000 | CNG station, gas gathering, pipeline boosting, LNG boil-off |
| Biogas / CO₂ Inert | Process Screw | Atmospheric | 6 – 16 bar | 100 – 3,000 | Biogas upgrading, landfill gas, CO₂ recovery, beverage carbonation |
| Helium (He) / SF₆ / Rare Inert | Diaphragm / Piston | 1 – 50 bar | Up to 300 bar | 2 – 200 | Leak testing, switchgear, semiconductor, MRI cooling |
| Ammonia (NH₃) / Chlorine Toxic | Diaphragm / Piston | 1 – 20 bar | Up to 100 bar | 5 – 500 | Chemical processing, refrigeration, water treatment |
Send us your gas composition (%), inlet pressure, discharge pressure, flow rate, and inlet temperature. Our engineers will design the optimal solution and deliver a full technical proposal.
* All process gas compressors are 100% engineered to order. Specifications shown represent typical manufacturing ranges — contact ZIQI with your exact process data for a technical proposal. Submit your process data sheet here.
| Item / Piston Force (KN) | 800 | 500 | 320 | 250 | 160 | 100 | 65 | 45 | 30 |
|---|---|---|---|---|---|---|---|---|---|
| Applicable Gases | Hydrogen, Nitrogen, Natural gas, Ethylene, Propylene, Coal gas, Hydrogen chloride, Hydrogen fluoride, Carbon dioxide, Chloromethane, Carbon monoxide, Acetylene, Ammonia, Difluoromethane, etc. | ||||||||
| Discharge Pressure (MPa G) | ≤ 25 | ≤ 30 | |||||||
| Compression Level | 1 - 4 | 1 - 6 | 1 - 3 | - | |||||
| Number of Columns | 2 - 4 | 2 - 6 | 1 - 4 | ||||||
| Layout Form | M / D | M / D | M / D | M / D | M / D | M / D / P | M / D / P | M / D / L / P | L / P |
| Stroke (mm) | 280 - 360 | 240 - 320 | 180 - 240 | 200 | |||||
| Rotary Speed (rpm) | 300 - 375 | 333 - 450 | 375 - 585 | 420 - 485 | |||||
| Max Motor Power (kW) | 5600 | 3600 | 3300 | 2700 | 1250 | 800 | 560 | 250 | 75 |
| Installation Type | Skid-mounted | Non-skid-mounted | Non-skid / Skid-mounted | Skid-mounted | |||||
| Key Features |
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* Note: We customize compressors to fit the actual working conditions of each customer.
