China Ethane Compressor Factory - Reliable Suppliers for Eco-Friendly Refrigeration and Chemical Feedstock Solutions
Ethane Diaphragm Compressor Advantages
01
Absolutely Oil-Free & Ultra-High Purity Assurance
The core structure of the diaphragm compressor completely isolates the gas from the lubrication system via a hydraulically driven metal diaphragm, achieving absolute oil-free compression. This is critical for polymer-grade ethane used as a high-end chemical feedstock, thoroughly preventing oil contamination and ensuring the quality and efficiency of downstream chemical reactions.
02
Static Seal Zero Leakage & Intrinsic Safety
The gas chamber adopts a fully static seal design, theoretically achieving zero leakage. This characteristic provides the highest level of safety assurance for handling flammable and explosive ethane gas, effectively preventing the accumulation of explosive gas mixtures in the plant area caused by trace leakage. It is particularly suitable for installation in spaces with limited room or locations with extremely high safety requirements.
Key Design Points for Ethane Diaphragm Compressors
01
Precise Anti-Liquefaction Thermodynamic Design & Temperature Monitoring
Given the critical temperature of ethane at 32.28°C, preventing liquefaction is the core of the design. Accurate thermodynamic calculations must be performed to ensure that the gas temperature after each compression stage, as well as the outlet temperature of the inter-stage coolers, is significantly higher than the dew point temperature of ethane at that stage's pressure, with a safety margin of 5-10 K. High-sensitivity temperature sensors and an interlock system must be configured to monitor the discharge temperature in real time, immediately triggering an alarm or shutdown when approaching dangerous values.
02
Optimized Material Compatibility & Diaphragm Life Management
Wetted parts must be made of materials compatible with ethane, such as 316L stainless steel. Special attention must be paid to the fatigue performance of the diaphragm under operating conditions near the critical region. The material selection, heat treatment process, and pre-tension setting require specific optimization to address the specific thermal stresses that may arise from ethane compression, and a predictive maintenance plan should be established.
03
Multi-Layered Safety Monitoring & Emergency Relief System
A three-layer diaphragm structure should be adopted, with diaphragm rupture monitoring sensors installed between the oil chamber and gas chamber for early warning. Combustible gas concentration probes should be integrated into the compressor body and inlet/outlet piping. Additionally, nitrogen purge connections must be designed for safe system displacement before startup and after shutdown. The discharge piping of safety relief devices should be routed to a safe flare system or a high-altitude vent stack.
Certificates
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
18
Flow (Nm³/h)
40
Inlet pressure (barg)
45
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-18/40-45 | 500 | 18 | 4 | 4.5 | 1200×900×1200 | 800 | 4 |
| 2 | GZ-20/29-45 | 500 | 20 | 2.9 | 4.5 | 1200×900×1200 | 800 | 4 |
| 3 | GZ-180/15-40 | 3000 | 180 | 1.5 | 4 | 2030×1045×1700 | 2500 | 30 |
| 4 | GV-10/1-25 | 600 | 10 | 0.1 | 2.5 | 1500×780×1080 | 800 | 4 |
| 5 | GV-120/3.5-12 | 2000 | 120 | 0.35 | 1.2 | 2200×1800×1700 | 3000 | 22 |
| 6 | GV-100/3-11 | 2000 | 100 | 0.3 | 1.1 | 2200×1800×1700 | 3000 | 18.5 |
| 7 | GL-25/15 | 1000 | 25 | Atmospheric | 1.5 | 2200×1650×1450 | 3000 | 7.5 |
| 8 | GL-80/5.5-35 | 1500 | 80 | 0.55 | 3.5 | 2000×1800×1200 | 3000 | 15 |
| 9 | GL-140/0.4-5 | 2000 | 140 | 0.4 | 0.5 | 3230×1770×2200 | 3000 | 18.5 |
| 10 | GD-400/8-40 | 8000 | 400 | 0.8 | 4 | 3600×2500×1700 | 6000 | 75 |
| 11 | GD-450/1-12 | 9000 | 450 | 0.1 | 1.2 | 3800×2300×2000 | 100000 | 90 |
| 12 | GD-1000/9-12 | 3000 | 1000 | 0.9 | 1.2 | 3200×1800×1900 | 4000 | 30 |
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
Ethane is highly flammable and explosive. Diaphragm compressors feature a static seal design that guarantees zero gas leakage, eliminating safety hazards. Additionally, they provide completely oil-free compression, which prevents contamination of polymer-grade ethane used in downstream chemical processes.
Since ethane's critical temperature is 32.28°C, our compressors utilize precise thermodynamic designs. We ensure that the gas temperature at each stage and cooler outlet remains 5-10 K above the dew point. High-sensitivity temperature sensors and interlocks monitor temperatures in real time to trigger automatic safety shutdowns if liquid formation risks arise.
All wetted parts in contact with ethane gas are manufactured from highly compatible materials such as 316L stainless steel. Diaphragms undergo special heat treatment and pre-tension optimization to handle the specific thermal and mechanical stresses associated with ethane compression.
Our compressors employ a three-layer metal diaphragm structure. Rupture monitoring sensors are installed between the oil and gas chambers. In the unlikely event of a diaphragm failure, the system immediately detects the pressure change, triggers an alarm, and stops the machine before any gas contamination or leakage occurs.
Depending on the model and site conditions, both water-cooled and air-cooled configurations are available. Water cooling is generally selected for higher capacity and multi-stage configurations to maintain strict control over gas temperatures.
We integrate nitrogen purge connections to safely displace air or residual gases before startup and after shutdown. Combustible gas concentration probes are situated on the compressor body and piping, and safety relief devices route any emergency gas discharge directly to a safe flare or high-altitude vent system.