China Methane Compressor Factory: Efficient Flammable Gas Handling by Top Suppliers
Methane Diaphragm Compressor Advantages
01
Ultimate Purity and Absolute Safety
The static sealing structure of the diaphragm chamber achieves physical isolation between the gas and lubricating oil, ensuring the purity of compressed methane is as high as 99.999%, while completely eliminating gas leakage during operation. This perfectly matches the flammable and explosive nature of methane, providing the highest level of protection for chemical-grade methane, laboratory research, and safety-sensitive areas.
02
High Pressure Capability and Wide Adaptability
A single stage can achieve a high compression ratio, with a maximum discharge pressure of up to 100 MPa. It can meet ultra-high-pressure requirements ranging from CNG filling and high-pressure bottling to special chemical processes. Its corrosion-resistant material options also allow it to handle methane gas sources containing trace impurities.
Methane Diaphragm Compressor Design Points
01
Diaphragm Safety Monitoring and Material Upgrade
A three-layer diaphragm structure must be configured with an integrated rupture monitoring and alarm system to ensure immediate interlock shutdown upon diaphragm failure, preventing oil-gas mixing. All flow-wetted parts must be made of 316L stainless steel or a higher-grade material and undergo strict degreasing and cleaning to guarantee gas purity and material compatibility.
02
Precise Thermal Management and Leak Prevention Design
The discharge temperature of each stage must be strictly controlled, typically not exceeding 120–135°C, to prevent the impact of high temperature on diaphragm life and sealing materials. All static sealing points in the gas path system must adopt metal seals or high-performance sealing elements. Nitrogen purging interfaces must be provided for purging before startup and maintaining pressure after shutdown to prevent the formation of explosive mixtures.
03
Integrated Safety Interlock System
Methane-specific combustible gas detectors must be installed within the compressor skid scope and interlocked with the main engine Emergency Shutdown (ESD) system and emergency ventilation system. Dual alarms and shutdown interlocks must be set for pressure and temperature parameters to establish an active safety protection system.
Certificates
Model Selection
| Model G70Z/G95Z/G110Z/G130Z | Piston Stroke 70mm~130mm |
| Maximum Piston Force 10KN~30KN | Maximum Discharge Pressure 70Mpa |
| Flow Range 1~500Nm³/h | Motor Power 2.2KW~30KW |
| Crankshaft Speed 420rpm | Cooling Method Water Cooled/Air Cooled |
| Model G70V/G95V/G130V | Piston Stroke 70mm~130mm |
| Maximum Piston Force 10KN~30KN | Maximum Discharge Pressure 50Mpa |
| Flow Range 1~200Nm³/h | Motor Power 2.2KW~30KW |
| Crankshaft Speed 420rpm | Cooling Method Water-cooled / Air-cooled |
| Model G110L/G130L | Piston Stroke 110mm~130mm |
| Maximum Piston Force 20KN~40KN | Maximum Discharge Pressure 100Mpa |
| Flow Range 10~1000Nm³/h | Motor Power 7.5KW~90KW |
| Crankshaft Speed 420rpm | Cooling Method Water-cooled / Air-cooled |
| Model G110D/G130D/G150D/G180D/G182D/G210D | Piston Stroke 110mm~210mm |
| Maximum Piston Force 20KN~160KN | Maximum Discharge Pressure 100Mpa |
| Flow Range 30~2000Nm³/h | Motor Power 22KW~200KW |
| Crankshaft Speed 420rpm | Cooling Method Water-cooled / Air-cooled |
G
Diaphragm type compressor
Z
Piston stroke 70mm
52
Flow (Nm³/h)
40
Inlet pressure (barg)
56
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-52/40-56 | 500 | 52 | 4 | 5.6 | 1200×700×1100 | 900 | 3 |
| 2 | GZ-15/10-12 | 500 | 15 | 1 | 1.2 | 1200×700×1100 | 900 | 3 |
| 3 | GZ-150/15-40 | 3000 | 150 | 1.5 | 4 | 2030×1045×1700 | 2500 | 30 |
| 4 | GV-10/16-250 | 1000 | 10 | 1.6 | 25 | 1400×900×1200 | 1000 | 7.5 |
| 5 | GV-10/（15-20）-160 | 1000 | 10 | 1.5-2 | 16 | 1400×900×1200 | 1000 | 7.5 |
| 6 | GV-30/4-250 | 1000 | 30 | 0.4 | 25 | 2400×1700×1300 | 3000 | 15 |
| 7 | GL-20/12-160 | 1000 | 20 | 1.2 | 16 | 2200×1800×1300 | 3000 | 7.5 |
| 8 | GL-70/5-35 | 1500 | 70 | 0.5 | 3.5 | 2000×1800×1200 | 3000 | 15 |
| 9 | GL-60/0.05-4 | 4000 | 60 | 0.005 | 0.4 | 2400×1800×1600 | 3000 | 15 |
| 10 | GD-220/12-90 | 4000 | 220 | 1.2 | 9 | 3000×2000×1800 | 4000 | 37 |
| 11 | GD-130/8-300 | 6500 | 130 | 0.8 | 30 | 3500×2300×1800 | 4500 | 45 |
| 12 | GD-500/20-250 | 9000 | 500 | 2 | 25 | 3800×2300×2000 | 100000 | 75 |
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
Methane is highly flammable and explosive. Diaphragm compressors utilize a static sealing structure that physically isolates the gas chamber from lubricating oil. This prevents oil-gas mixing, guarantees up to 99.999% gas purity, and eliminates external gas leakage, making it the safest option for explosive gas handling.
These compressors feature high-pressure capability with a single stage achieving high compression ratios. The maximum discharge pressure can reach up to 100 MPa, making them suitable for CNG filling, bottling, and specialized chemical processing.
The compressor is equipped with a three-layer diaphragm structure integrated with a rupture monitoring and alarm system. If a diaphragm fails, the safety interlock system immediately triggers an Emergency Shutdown (ESD) to prevent oil-gas contamination and hazards.
To prevent corrosion and ensure maximum compatibility, all flow-wetted parts are constructed from high-grade 316L stainless steel or superior materials. These components undergo strict degreasing and cleaning procedures before assembly.
The discharge temperature of each stage is strictly regulated, generally not exceeding 120–135°C. This precise thermal management protects the diaphragm life and high-performance sealing elements from thermal degradation.
The design includes nitrogen purging interfaces. Purging the system with nitrogen before startup and maintaining positive pressure after shutdown prevents oxygen entry, effectively eliminating the formation of explosive methane-oxygen mixtures.