High-Quality Ethane Compressors from China Suppliers | Reliable Factory Solutions for Refrigeration and Petrochemicals
✔ Ethane Diaphragm Compressor Advantages
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01Absolutely Oil-Free & Ultra-High Purity AssuranceThe 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.
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02Static Seal Zero Leakage & Intrinsic SafetyThe 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
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01Precise Anti-Liquefaction Thermodynamic Design & Temperature MonitoringGiven 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.
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02Optimized Material Compatibility & Diaphragm Life ManagementWetted 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.
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03Multi-Layered Safety Monitoring & Emergency Relief SystemA 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
GZ
GV
GL
GD
| 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
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 |
The equipment size and weight are for reference only, and the final design shall prevail.
📁 Case Study
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Russia -
United States -
Spain -
Kazakhstan
❓ Frequently Asked Questions (FAQ)
Why is absolute oil-free compression essential for ethane?
Ethane is frequently processed as high-end chemical feedstocks (like polymer-grade ethane). Any oil contamination from lubrication can disrupt downstream chemical reactions and degrade final polymer quality. Diaphragm compressors prevent this via complete metal diaphragm isolation.
How does a diaphragm compressor prevent ethane leakage?
By utilizing a fully static seal design for the gas chamber, diaphragm compressors eliminate dynamic seals where leaks typically occur. This ensures zero leakage, making it extremely safe for handling explosive gases like ethane.
What is the critical temperature of ethane, and why does it affect design?
Ethane's critical temperature is 32.28°C. If the gas cools below this point under pressure, it liquefies, which can damage the compressor. Precise thermodynamic calculations and temperature sensors are used to keep temperatures safely above the dew point.
What materials are used for ethane diaphragm compressors?
All wetted parts are manufactured using high-grade materials compatible with ethane, such as 316L stainless steel, to prevent corrosion and handle structural stresses near critical pressure zones.
How does the safety monitoring system protect the diaphragm?
The compressors feature a three-layer diaphragm structure equipped with rupture sensors. If any layer fails, the system detects a pressure change between the chambers and triggers an alarm before gas or oil contamination can occur.