China Methane Compressor Manufacturers | Gas Compression Equipment Suppliers & Factory
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
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.
Certificate
Model Selection
| ModelG70Z/G95Z/G110Z/G130Z | Piston Stroke70mm~130mm | Maximum Piston Force10KN~30KN |
| Maximum 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 |
| Maximum 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 |
| Maximum 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 |
| Maximum Discharge Pressure100Mpa | Flow Range30~2000Nm³/h | Motor Power22KW~200KW |
| Crankshaft Speed420rpm | Cooling MethodWater-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
What is the purity level of methane compressed by these diaphragm compressors?
The static sealing structure of the diaphragm chamber ensures physical isolation between the gas and lubricating oil, delivering a compressed methane purity of up to 99.999%.
What is the maximum discharge pressure capability of the compressor?
A single-stage configuration can achieve a high compression ratio, with a maximum discharge pressure of up to 100 MPa to meet demanding high-pressure applications.
How does the safety monitoring system prevent oil-gas mixing?
The compressor features a three-layer diaphragm structure integrated with an automatic rupture monitoring and alarm system. This triggers an immediate interlock shutdown if a diaphragm fails, preventing any oil-gas contamination.
What materials are used for flow-wetted parts in methane compressors?
All flow-wetted components are manufactured from 316L stainless steel or higher-grade corrosion-resistant materials. They undergo strict degreasing and cleaning to ensure gas compatibility and purity.
What is the typical limit for discharge temperature management?
The discharge temperature of each compression stage is strictly controlled and typically kept below 120–135°C to protect the lifespan of the diaphragms and sealing elements.
What safety features are included in the integrated interlock system?
The system includes methane-specific combustible gas detectors, dual alarms for pressure and temperature, and an emergency shutdown (ESD) system interlocked with the main engine and emergency ventilation.