EN
cn 
With China's diaphragm compressor technology continuously advancing in high-pressure, ultra-high-pressure, and high-displacement capabilities, the demand for application scenarios is rapidly expanding. Our company specializes in providing high-pressure and ultra-high-pressure diaphragm compressors (up to 320 MPa) for hydrogen energy, nuclear power, military, aerospace, and other critical sectors. Committed to technological innovation, we have developed proprietary high/ultra-high-pressure diaphragm compressors with independent intellectual property rights.
While focusing on integrated system R&D, we concurrently advance the development of core components and conduct in-depth research on overall system reliability, ensuring enhanced operational dependability. This comprehensive approach enables us to deliver superior and reliable solutions for high-pressure gas compression needs across diverse industries.
| Parameter | Typical Value/Specification | Applicable Scenarios |
| Working Pressure | 90MPa、250MPa、320 MPa | hydrogen refueling stations, Hydrogen energy, military and aerospace |
| Discharge Volume (Standard Conditions) | Up to 4,000 Nm³/h (maximum) | Electrolytic hydrogen production, by-product hydrogen recovery |
| Compression Stages | 2~6 stages (multi-stage compression reduces temperature rise) | High-pressure hydrogen refueling stations (>70 MPa) |
| Cooling Method | Water-cooled (closed-loop) / Air-cooled (small units) | Industrial scenarios requiring continuous operation |
| Explosion-proof Rating | ExdIIGT4 (explosion-proof certified) | Hydrogen refueling stations, hazardous areas in chemical plants |
| Material Compatibility | 316L stainless steel, nickel-based alloy (hydrogen embrittlement-resistant) | High-purity hydrogen compression |
| Sealing System | Oil-free cylinder, excellent sealing performance, compressed medium does not contact any lubricant | Zero-leakage requirement scenarios |
| Control Mode | PLC automatic control | One-click start/stop,unattended operation |
Through numerical analysis and experimental studies, oil-gas property models were established for ultra-high-pressure diaphragm compressors. The mechanisms of oil compressibility and oil-gas pressure coupling on volumetric efficiency were revealed, leading to optimized matching between oil chamber volume and stroke volume for maximum efficiency.
By analyzing the working process of ultra-high-pressure relief valves and valve clearance flow fields, the thermodynamic behavior of valve components under high-pressure jet impact was investigated. This enabled the development of a novel ultra-high-pressure relief valve, significantly enhancing system reliability.
Research on gas-solid-liquid synergistic interactions under ultra-high-pressure conditions led to the creation of diaphragm cavity profile design technology aimed at extending diaphragm lifespan. This breakthrough facilitated the successful development of a 320 MPa ultra-high-pressure diaphragm compressor, setting new benchmarks in performance and application scope.
The successful development of 250MPa and 320MPa ultra-high-pressure diaphragm compressors is of great significance for the development of national key fields. It has achieved domestic substitution and breakthroughs in "necklace" technologies (critical bottleneck technologies) in national key fields, promoted the technological upgrading and industrial development of high-end equipment in related civil fields and the hydrogen energy industry, overcome important problems that have plagued national key fields for 30 years, and significantly enhanced the security capabilities of national key fields.
Call us on: 
Email Us: 
Collaborative Innovation Industrial Park, No. 130 Yinhe Road, Southeast Development Zone, Changshu, Jiangsu Province 
