Diaphragm Type Compressor
The Dondel hydrogen diaphragm compressor delivers hydrogen with a purity exceeding 99.999%, marking Chinas first domestically produced high-pressure diaphragm compressor capable of handling over 90 MPa.
It supports customized designs to meet diverse hydrogen filling and refueling requirements across various pressure environments.
Purity
99.999%
Max pressure
90 MPa
Core Advantage
Ultra-High Purity of Gas
The dual isolation technology ensures zero contamination of the medium, with output hydrogen purity ≥99.999%, meeting the requirements for semiconductor-grade applications.
High Efficiency Compression Performance
Single-stage compression ratio of 1:10+ with modular multi-stage configuration. A 30% decrease in land area compared to the previous year. Continuous output capacity increased by 30%.
Innovative Structural Design
Patent cooling film head (46% temperature reduction) Low-vibration, silent architecture (<75dB) Strengthen the connecting rod structure (load +20%)
Long Term Stable Operation
Oil seal system lifespan: 8000 hours + long stroke low stroke design Maintenance costs reduced by 40% year-on-year
High Adaptability to Operating Conditions
Compatible with varying intake conditions, it can adapt to multiple operating scenarios by adjusting configuration and operational parameters.
Intelligent Interconnection Control
Equipped with a PLC + IoT system, it enables real-time monitoring of multiple parameters including pressure, temperature, and vibration, while supporting remote monitoring and predictive maintenance.
Triple Security Protection
Multi-layer redundant diaphragm + rupture monitoring system. Dual overvoltage / overtemperature protection mechanism. Complete physical isolation design for oil and gas circuits.
Various Types of Diaphragm Compressors
L-Type
V-Type
D-Type*
Z-Type
D-Type / Horizontal
D-Type
Application scenarios of diaphragm compressor
Hydrogenation station
According to data from the hydrogen energy industry research institution Xiangchenghui, as of the end of June 2024, China has built 426 hydrogen refueling stations, with 19 newly added in the first half of 2024 alone. The development of the hydrogen energy industry cannot be separated from technological innovation and the improvement of the industrial chain. At present, China has made significant progress in various aspects of hydrogen energy production, storage, transportation, and application. As an important equipment in the stages of hydrogen “production, storage, transportation, refueling, and application”, diaphragm compressors can compress gases with extremely high purity, generally reaching a purity of 99.999%.
Hydrogen production from grey hydrogen and green hydrogen
In the production of hydrogen, sources such as fossil fuels and industrial by-product hydrogen are collectively referred to as grey hydrogen. Hydrogen produced from wind and solar power is collectively referred to as green hydrogen. The diaphragm compressor plays a key role in hydrogen production by providing pressurization, purification, and pre-pressurization for storage and transportation, ensuring the process is efficient, safe, and delivers high-purity hydrogen.
Petrochemical engineering
Petroleum chemical industry is an important part of chemical industry, and plays an important role in the development of national economy. It is one of the pillar industries in China. Petroleum chemical industry refers to the production of petroleum and natural gas as raw materials. The first step is to crack the raw oil and gas (such as propane, gasoline, diesel oil, etc.). Diaphragm compressors can be used to compress various petrochemical raw materials, such as hydrogen, nitrogen, oxygen, carbon dioxide, etc., as well as for gas transportation and pressure control in production processes.
Industry of fine chemicals
In the process of fine chemical production, it is often involved in the treatment of high purity, flammable and explosive, toxic or corrosive gases, such as hydrogen, ammonia, chlorine and its compounds, and various organic synthetic gases. Diaphragm compressor has a place in fine chemical industry because of its unique sealing performance and strict guarantee of gas purity.
Military nuclear power
Military nuclear technology encompasses numerous peaceful nuclear energy applications, such as the construction and operation of nuclear power plants. Military nuclear technology is not only crucial to national military security but also serves as a significant force in driving the transformation of the national energy structure and economic development. Diaphragm compressors can be used to compress various gases and liquids in the nuclear power production process, such as helium, nitrogen, oxygen, etc., as well as for transportation and pressure control.
Food and Pharmaceutical Industry
The food industry also needs to use oil-free and pollution-free gas in the process of production and packaging. Diaphragm compressors can provide high-quality and high-purity gas supply for the food industry, ensuring food safety and hygiene. They are also used to compress various food and pharmaceutical raw materials, such as milk powder and pharmaceutical intermediates, as well as for gas transportation and pressure control during production processes.
Scientific research experiment
It is used for ultra-high pressure test equipment compressors in scientific research, with a maximum pressure of 200MPa, and for pilot-scale and small-scale testing in chemical plants. In the field of nanotechnology, the diaphragm compressor can accurately compress and transport high-purity gas to support the preparation and research of nanomaterials and nanodevices.
Iron and steel industry
The hydrogen produced in the process of steel industry can be used as fuel in hydrogen metallurgy and other processes after being purified and pressurized by diaphragm compressor.
Special gas filling
Gas filling refers to the process of introducing gas into pressure vessels like cylinders through pressure differentials. The core technical bottleneck lies in enhancing the purity of specialty gases. Integrated circuits impose stringent purity requirements on electronic specialty gases, as even trace impurities during chip fabrication can cause critical defects. Higher purity of specialty gases directly correlates with improved product yield and superior performance. With the development of IC chip manufacturing technology, the production precision of products is getting higher and higher, and the purity of electronic special gas used in IC manufacturing is also getting higher and higher.
Parameter Table of Hydrogen Separation Membrane Compressor
| Product model | Inlet pressure (MPa) | Exhaust pressure (MPa) | Volumetric flow rate (Nm³/h) | Crankshaft speed (r/min) | Motor power (KW) |
| DZ22 – 1500 | 1.7 | 22 | 1500 | 420 | 200 |
| DZ22 – 1250 | 1.2 – 1.6 | 22 | 1250 | 420 | 200 |
| DZ22 – 1200 | 1.2 – 1.6 | 22 | 1200 | 420 | 185 |
| DZ30 – 1000 | 1.7 | 30 | 1000 | 420 | 185 |
| DZ32 – 1000 | 1.7 | 32 | 1000 | 420 | 185 |
| DZ22 – 1000 | 1.2 – 1.6 | 22 | 1000 | 585 | 160 |
| DZ20 – 800 | 1.2 – 1.6 | 20 | 800 | 420 | 132 |
| DZ22 – 650 | 1.2 – 1.6 | 22 | 650 | 585 | 110 |
| DZ22 – 600 | 1.2 – 1.6 | 22 | 600 | 585 | 110 |
| DZ20 – 500 | 1.2 – 1.6 | 22 | 500 | 585 | 90 |
| DZ22 – 500 | 1.2 – 1.6 | 22 | 500 | 585 | 90 |
| DZ22 – 300 | 1.2 – 1.6 | 22 | 300 | 585 | 55 |
| DZ22 – 500/2 | 2 – 4 | 22 | 200 | 420 | 90 |
| DZ22 – 200 | 1.2 – 1.6 | 22 | 200 | 420 | 45 |
| DZ20 – 200 | 1.6 | 20 | 200 | 420 | 45 |
| DZ22-200/2 | 2 – 4 | 22 | 200 | 420 | 45 |
| DZ22 – 150 | 1.2 – 1.6 | 22 | 150 | 420 | 30 |
| DZ20 – 100 | 2.5 | 20 | 100 | 400 | 25 |
| DZ22 – 50 | 2.5 | 22 | 50 | 420 | 7.5 |
| DZ22 – 30 | 1.2 – 1.6 | 22 | 30 | 420 | 5.5 |
| DZ20 – 15 | 0.15 | 20 | 15 | 420 | 11 |
Hydrogenation Diaphragm Compressor Parameter Table
| Product model | Intake pressure (MPa) | Exhaust pressure (MPa) | Volumetric flow rate (Nm³/h) | Crankshaft speed (r/min) | Motor power (KW) |
| DZ45-1500 | 5 – 20 | 45 | 1500 | 420 | 110 |
| DZ90-750 | 5 – 20 | 90 | 750 | 420 | 75 |
| DZ45-750 | 5 – 20 | 45 | 750 | 420 | 55 |
| DZ90-500 | 45 | 90 | 500 | 420 | 37 |
Application of Diaphragm Compressor in Dondel
China Hainans largest Integrated Energy Supply Demonstration Station
The project is a comprehensive energy station integrating hydrogenation, fueling, charging and natural gas filling.
- Daily hydrogenation amount: 500 kg
- A 5-kilogram hydrogen fuel cell vehicle with a 35 MPa hydrogen supply can be fully charged in just 10 minutes, providing a range of approximately 500 kilometers.
- Hydrogen source: wind power hydrogen production
Customer feedback: The Dondel 45MPa compressor has been operating stably in Hainans high-temperature and high-humidity environment, ensuring the smooth operation of the integrated energy station, and has received praise and gratitude from customers.
The first in the southwest region of China Hydrogenation Unitary Station with Electrolysis Water
This project is a Sino-European collaborative hydrogen energy industrial park, the first high-end advanced equipment manufacturing park for hydrogen energy in western China. Daily hydrogenation amount: 1500 kg; Source of hydrogen: electrolysis of water
Customer feedback: The electrolyzers alkaline solution leaked, causing the entire solution to flow into the compressor. The East German after-sales team responded promptly, assisted the customer in repairing and rectifying the issue, and earned high praise from the customer.
China Energy Engineering Group Lanzhou New Area Green Electricity Hydrogen and Ammonia Project (Phase I)
The project produces hydrogen through electrolysis of desalinated water. The hydrogen is pressurized by a hydrogen diaphragm compressor after being buffered in a buffer tank, then filled into hydrogen cylinders. These cylinders are transported via a filling column to a long tube trailer, with oxygen vented. The hydrogen production capacity reaches 1000 Nm³/h.
Product specifications: Inlet pressure 1.5MPaG, exhaust pressure 20MPaG; flow rate up to 1000Nm³/h, with a single 23m³ hydrogen storage vehicle requiring only 2.5 hours for refueling.
Customer feedback: With an extremely tight project timeline, Dondel implemented a green channel project management system, achieving an industry-leading 40-day cycle from project initiation to equipment delivery. The client even sent a special letter of appreciation to express their gratitude!
