China Oxygen Compressor Factory - Oil-Free, Safe & Pure Solutions from Reliable Suppliers
Oxygen Diaphragm Compressor Advantages
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01Absolutely Oil-Free & Ultimate Purity AssuranceThe structure of the diaphragm compressor ensures that oxygen is 100% free from contact with any lubricating oil during compression, perfectly complying with the absolute oil prohibition rule for oxygen compression. This not only prevents violent oxidation reactions and explosion risks but also guarantees the purity of the outlet oxygen, making it particularly suitable for medical oxygen generation, high-purity oxygen preparation, and fine chemical processes with stringent oil-free requirements.
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02Zero Leakage Static Seal SafetyUtilizing static seal structures such as diaphragm isolation and O-rings, zero leakage from the gas side to the environment is achieved. This is crucial for preventing the accumulation of oxygen in the compressor room, which could create an oxygen-enriched environment (an oxygen concentration >23% significantly increases fire risk), providing the highest level of safety protection for operators and equipment.
Key Design Points for Oxygen Diaphragm Compressors
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01Special Material Selection & Strict Degreasing TreatmentAll wetted parts in contact with oxygen, such as the cylinder head, diaphragm, gas valves, and piping, must be made of materials that are oxidation-resistant, low-friction, and do not produce dangerous reactions through incompatibility. Stainless steel (e.g., 304, 316L) or nickel-based alloys are typically selected. Before manufacturing and assembly, all components must undergo thorough degreasing cleaning to remove any grease residue. This is fundamental for preventing auto-ignition incidents.
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02Diaphragm Safety Monitoring & Redundant DesignA three-layer diaphragm structure is adopted, integrated with a diaphragm rupture alarm system. Once an outer diaphragm is damaged, the pressure change in the middle layer immediately triggers a pressure switch, producing an audible and visual alarm and automatically initiating an interlock shutdown. This prevents oxygen from entering the oil system or hydraulic oil from contaminating the gas, forming a critical safety barrier.
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03Optimized Oil Circuit & Cooling System DesignThe precise hydraulic oil circuit system must ensure stable oil pressure that is always slightly higher than the gas pressure to protect the diaphragm and ensure compression efficiency. Simultaneously, efficient inter-stage coolers and an after-cooler must be configured to strictly control the discharge temperature at each stage, preventing excessive temperature rise of the oxygen that could exacerbate material oxidation risks or become an ignition source. The cooling system typically needs to be equipped with flow and temperature monitoring and interlock protection.
Certificate
Model Selection
ModelG70Z/G95Z/G110Z/G130Z
Piston Stroke70mm~130mm
Maximum Piston Force10KN~30KN
Max Discharge Pressure70Mpa
Flow Range1~500Nm³/h
Motor Power2.2KW~30KW
Crankshaft Speed420rpm
Cooling MethodWater Cooled/Air Cooled
ModelG70V/G95V/G130V
Piston Stroke70mm~130mm
Maximum Piston Force10KN~30KN
Max Discharge Pressure50Mpa
Flow Range1~200Nm³/h
Motor Power2.2KW~30KW
Crankshaft Speed420rpm
Cooling MethodWater-cooled / Air-cooled
ModelG110L/G130L
Piston Stroke110mm~130mm
Maximum Piston Force20KN~40KN
Max Discharge Pressure100Mpa
Flow Range10~1000Nm³/h
Motor Power7.5KW~90KW
Crankshaft Speed420rpm
Cooling MethodWater-cooled / Air-cooled
ModelG110D/G130D/G150D/G180D/G182D/G210D
Piston Stroke110mm~210mm
Maximum Piston Force20KN~160KN
Max Discharge Pressure100Mpa
Flow Range30~2000Nm³/h
Motor Power22KW~200KW
Crankshaft Speed420rpm
Cooling MethodWater-cooled / Air-cooled
G
Diaphragm type compressor
Z
Piston stroke 70mm
12
Flow(Nm3/h)
30
Inlet pressure(barg)
70
Outlet pressure(barg)
| No. | Model | Cooling water | Flow | Inlet pressure | Outlet pressure | Dimensions L×W×H | Weight | Motor Power |
|---|---|---|---|---|---|---|---|---|
| (L/h) | (Nm³/h) | (MPa) | (MPa) | (≈mm) | (≈kg) | (kW) | ||
| 1 | GZ-12/(30-50)-70 | 1000 | 12 | 3-5 | 7 | 1400×850×1320 | 900 | 7.5 |
| 2 | GZ-15/6-30 | 1000 | 15 | 0.6 | 3 | 1400×850×1320 | 900 | 11 |
| 3 | GZ-35/7-20 | 1000 | 35 | 0.7 | 2 | 1400×850×1320 | 1000 | 11 |
| 4 | GV-18/(13-20)-200 | 1000 | 18 | 1.3~2 | 20 | 1250×900×1200 | 1020 | 11 |
| 5 | GV-8/6-150 | 800 | 8 | 0.6 | 15 | 2200×1650×1450 | 1000 | 7.5 |
| 6 | GV-30/16-200 | 1500 | 30 | 1.6 | 20 | 2600×1800×1700 | 3000 | 15 |
| 7 | GV-30/(7-18)-300 | 2000 | 30 | 0.7-1.8 | 30 | 2600×1800×1700 | 3000 | 18.5 |
| 8 | GV-40/50-500 | 2000 | 40 | 5 | 50 | 2600×1800×1700 | 3000 | 22 |
| 9 | GD-100/(0.25-4)-350 | 8000 | 100 | 0.025-0.4 | 35 | 4000×2300×2000 | 5000 | 75 |
| 10 | GD-60/(5-10)-350 | 6000 | 60 | 0.5-1 | 35 | 3200×2300×1500 | 4000 | 55 |
| 11 | GD-100/17-400 | 7000 | 100 | 1.7 | 40 | 3600×2300×1800 | 6000 | 55 |
| 12 | GD-300/8-200 | 12000 | 300 | 0.8 | 20 | 4000×2300×2000 | 10000 | 132 |
The equipment size and weight are for reference only, and the final design shall prevail.
Case Study
Russia
United States
Spain
Kazakhstan
Frequently Asked Questions (FAQ)
Oxygen is a highly reactive gas. Under pressurized conditions, contact with even trace amounts of lubricating oil or grease can cause violent oxidation reactions, leading to severe explosions. An oil-free design ensures total process safety and gas purity.
Standard dynamic seals may allow minor gas bypass. By using static seals with diaphragm isolation and O-rings, zero leakage is maintained. This prevents oxygen from accumulating in the compressor room and creating an oxygen-enriched environment (>23% concentration), which dramatically increases fire risks.
Components such as cylinder heads, diaphragms, and valves are manufactured from oxidation-resistant, low-friction materials like stainless steel (e.g., 304, 316L) or nickel-based alloys. Furthermore, all parts undergo strict degreasing cleaning before assembly to remove any auto-ignition risk.
These compressors feature a three-layer diaphragm design integrated with a rupture alarm. If a layer is damaged, pressure changes in the middle layer immediately trigger a pressure switch, sounding an alarm and initiating an automatic interlock shutdown to prevent contamination.
High temperatures can exacerbate oxidation and become ignition sources. To prevent this, the compressors are equipped with efficient inter-stage coolers, after-coolers, and continuous temperature/flow monitoring systems that automatically shut down the unit if limits are exceeded.
Yes, depending on the model, site conditions, and specific flow requirements, models can be configured with either water-cooled or air-cooled systems to ensure optimal thermal management.




