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The 4–10 m³/h Oil‑Free Oxygen Booster Compressor is a specialized reciprocating piston unit designed to elevate low-pressure oxygen (3–4 bar) from PSA generators, cylinders, or pipelines up to 150–200 bar for cylinder filling or direct use. Featuring a 100% oil‑free compression chamber with all-stainless steel gas-contact components, it
guarantees zero hydrocarbon contamination and high purity. Operating at a low speed of 260–400 RPM with a 3–5.5 kW power range, this air or water-cooled booster ensures quiet, energy-efficient, and long-lasting continuous service.
Booster Compressor Advantages
100% Oil‑Free – Absolute Purity
Self‑lubricating materials eliminate oil in the compression chamber. Output oxygen is completely oil‑free, meeting ISO 8573‑1 Class 0.
Intrinsic Oxygen Safety
No oil means no risk of oil‑oxygen reactions. All oxygen‑contacting parts are stainless steel for safe, reliable operation.
Energy Efficient & Low Operating Costs
Boosts from 3–4 bar pre‑compressed oxygen, consuming only 3–5.5 kW. Oil‑free design eliminates oil purchase, changes, and disposal costs.
Long Life & Low Maintenance
Low speed (260–400 RPM) extends piston ring and valve life – up to 4,000 hours (low pressure) / 1,500–2,000 hours (high pressure). Simple design reduces maintenance frequency.
Continuous Duty & Reliable
Designed for 24/7 heavy‑duty operation. Built‑in protections (low inlet pressure, high exhaust pressure/temperature, safety valves) ensure safe automatic shutdown.
Quiet Operation
Noise below 75 dB(A) – suitable for noise‑sensitive areas without extra enclosures.
Compact & Easy to Install
Space‑saving design with base forklift slot. Integrates easily with existing PSA or liquid oxygen sources.
CE Certified
Manufactured to international standards and CE certified for European safety and environmental compliance.
Technical parameter
| Model | GOW-4~12/4-150 |
| Capacity | 4~12 m3/h |
| Inlet P | 3~4 bar |
| Outlet P | 150 bar |
| Power | 3~5.5 kW |
| Inlet/Outlet Temp | 45 °C |
| Dimension( L*W*H ) | 1000*800*1100mm |
| Inlet Size | DN15 |
| Outlet Size | M16*1.5 |
| Weight | 320kg |
Application Industries
Medical & Healthcare
Cylinder filling
Central hospital supply
Hyperbaric chambers
Mobile/field medical stations
Industrial Manufacturing
Cylinder filling stations
Combustion & cutting
Chemical process gas
Glass & steel furnaces
Laboratory & Research
Analytical instrument gas supply
Pressure testing
R&D projects
️ Plateau & Remote
High-altitude oxygen systems
Off-grid generation
Others
Aerospace & defence
Water treatment
Food & beverage (oil‑free purity mandatory)
FAQS
1: What is an oxygen booster compressor, and how is it different from a standard air compressor?
A: An oxygen booster raises the pressure of already‑generated low‑pressure oxygen (e.g., from PSA generators) to high pressure for storage or filling. A standard air compressor is not suitable for oxygen due to oil contamination and material safety risks.
FAQ 2: Why is an oil‑free design essential for oxygen compression?
A: Oxygen reacts violently with hydrocarbon oils – oil‑free design eliminates explosion risks. Self‑lubricating materials ensure 100% pure, oil‑free output, mandatory for medical and food applications.
FAQ 3: What inlet pressure and gas source are required?
A: Requires a clean, pre‑compressed oxygen source at 3–4 bar – typically from a PSA generator, liquid oxygen vaporiser, or low‑pressure pipeline. The unit cannot draw oxygen from the atmosphere and must be installed downstream of an existing supply.
FAQ 4: What is the maintenance schedule, and which parts need replacement?
A: Piston rings and guide rings: inspect/replace every 4,000 hours (low pressure) or 1,500–2,000 hours (high pressure). Valves: inspect regularly. Major overhaul: 8,000–10,000 hours. No oil to change – maintenance focuses on wearing parts only.
FAQ 5: Can this booster be used for other gases besides oxygen?
A: Yes – nitrogen, argon, and other inert/clean gases. For oxygen, the unit requires strict degreasing and stainless steel components. Please specify gas medium when ordering.
FAQ 6: What is the typical delivery pressure, and can it be customised?
A: Standard discharge is 150 bar, options up to 200 bar or higher. Custom pressures are available via multistage configurations (2‑stage to 4‑stage) – consult manufacturer with your specific requirements.
FAQ 7: Is the compressor suitable for continuous 24/7 operation?
A: Yes – designed for heavy‑duty continuous operation. Robust construction, low speed, and built‑in cooling (air or water) ensure stable 24‑hour running.
FAQ 8: What cooling methods are available?
A: Air‑cooled (simple, no external water) and water‑cooled (more efficient, preferred for higher capacity/pressure). Selection depends on site conditions and operating parameters.
FAQ 9: What safety features are included?
A: Low inlet pressure protection, high exhaust pressure/temperature protection, safety valves, and real‑time temperature/pressure displays – all ensure automatic shutdown under unsafe conditions.
FAQ 10: How does this booster compare to a single‑stage high‑pressure compressor?
A: More energy‑efficient because it starts from 3–4 bar pre‑compressed gas, not from atmospheric pressure. A single‑stage unit would need a much larger motor and consume far more electricity. Also, a booster can be added to an existing system without replacing the entire infrastructure.
