High-Pressure Nitrogen Compressor from China Suppliers | Energy-Efficient Factory Solution for Precision Industries
Advantages of Nitrogen Diaphragm Compressor
01
High Purity and Zero Leakage
The metal diaphragm is driven hydraulically to boost the gas. The cylinder requires no lubricating oil, as the diaphragm completely physically isolates the gas from the oil, ensuring an outlet purity of over 99.999%. The static sealing structure achieves zero-leakage operation, preventing contamination from external impurities while avoiding the loss of valuable nitrogen gas.
02
High Efficiency & Low Maintenance
A high single-stage compression ratio easily achieves medium-to-high pressure output. The diaphragm assembly is the only wearing part, resulting in extremely low maintenance costs. It is particularly suitable for applications with stringent purity requirements, such as the electronics industry, specialized metallurgy, scientific research laboratories, and rare nitrogen recovery and boosting systems.
Key Design Points
01
Core Materials & Component Life
The diaphragm is made of high-quality stainless steel with high strength and high fatigue life. Its tensile strength is 1.5 times higher than conventional materials, and its continuous operating life can reach over 6,000 hours. The oil circuit system is equipped with a precise servo pressure regulating valve, ensuring the oil pressure always follows the gas pressure changes and remains at approximately 1.1 times the gas pressure, guaranteeing uniform stress on the diaphragm.
02
Cavity Curvature Optimization
The diaphragm cavity curvatures of the cylinder head and the oil distribution plate are optimized using computer-aided design, improving volumetric efficiency by over 20%. Simultaneously, it improves the stress distribution on the diaphragm, extending its service life.
03
Safety Protection & Cleanliness
Equipped with a diaphragm rupture alarm device (three-layer diaphragm structure). Once the middle diaphragm ruptures, the alarm is triggered and the unit automatically shuts down to ensure equipment and personnel safety. All wetted metal components are made of 316L stainless steel to prevent rust contamination of the gas.
Certificates
Model Selection
| Model | G70Z / G95Z / G110Z / G130Z |
|---|---|
| Piston Stroke | 70mm ~ 130mm |
| Max Piston Force | 10KN ~ 30KN |
| Max Discharge Pressure | 70Mpa |
| Flow Range | 1 ~ 500 Nm³/h |
| Motor Power | 2.2KW ~ 30KW |
| Crankshaft Speed | 420 rpm |
| Cooling Method | Water Cooled / Air Cooled |
| Model | G70V / G95V / G130V |
|---|---|
| Piston Stroke | 70mm ~ 130mm |
| Max Piston Force | 10KN ~ 30KN |
| Max Discharge Pressure | 50Mpa |
| Flow Range | 1 ~ 200 Nm³/h |
| Motor Power | 2.2KW ~ 30KW |
| Crankshaft Speed | 420 rpm |
| Cooling Method | Water Cooled / Air Cooled |
| Model | G110L / G130L |
|---|---|
| Piston Stroke | 110mm ~ 130mm |
| Max Piston Force | 20KN ~ 40KN |
| Max Discharge Pressure | 100Mpa |
| Flow Range | 10 ~ 1000 Nm³/h |
| Motor Power | 7.5KW ~ 90KW |
| Crankshaft Speed | 420 rpm |
| Cooling Method | Water Cooled / Air Cooled |
| Model | G110D / G130D / G150D / G180D / G182D / G210D |
|---|---|
| Piston Stroke | 110mm ~ 210mm |
| Max Piston Force | 20KN ~ 160KN |
| Max Discharge Pressure | 100Mpa |
| Flow Range | 30 ~ 2000 Nm³/h |
| Motor Power | 22KW ~ 200KW |
| Crankshaft Speed | 420 rpm |
| Cooling Method | Water Cooled / Air Cooled |
G
Diaphragm type compressor
Z
Piston stroke 70mm
14
Flow (Nm³/h)
6
Inlet pressure (barg)
20
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-14/6-20 | 500 | 14 | 0.6 | 2 | 1200×800×1100 | 700 | 2.2 |
| 2 | GZ-1/4-37 | 500 | 1 | 0.4 | 3.7 | 1200×900×1100 | 8500 | 4 |
| 3 | GZ-935/8-8.3 | 1000 | 935 | 0.8 | 0.83 | 2100×1500×1700 | 2500 | 15 |
| 4 | GV-10/4-160 | 800 | 10 | 0.4 | 16 | 1330×740×1080 | 650 | 4 |
| 5 | GV-20/5-200 | 2000 | 20 | 0.5 | 20 | 2200×1800×1600 | 3000 | 15 |
| 6 | GV-30/(5-6)-350 | 2000 | 30 | 0.5-0.6 | 35 | 2400×1800×1600 | 3000 | 18.5 |
| 7 | GL-25/15 | 1000 | 25 | Atmospheric | 1.5 | 2200×1200×1300 | 3000 | 7.5 |
| 8 | GL-20/12-160 | 1000 | 20 | 1.2 | 16 | 2200×1200×1300 | 3000 | 7.5 |
| 9 | GL-70/5-35 | 2000 | 70 | 0.5 | 3.5 | 2000×1000×1200 | 3000 | 15 |
| 10 | GD-150/2-20 | 4000 | 150 | 0.2 | 2 | 3400×2000×1600 | 3800 | 37 |
| 11 | GD-120/8-350 | 6500 | 120 | 0.8 | 35 | 3500×2300×1800 | 4500 | 45 |
| 12 | GD-100/5.5-200 | 5000 | 100 | 0.55 | 20 | 3200×2000×1500 | 4500 | 45 |
The equipment size and weight are for reference only, and the final design shall prevail.
Case Study
Frequently Asked Questions (FAQ)
Why does a Nitrogen Diaphragm Compressor guarantee zero leakage?
The compressor utilizes a static sealing structure with a metal diaphragm that physically isolates the gas from the oil and the external environment. Since there are no dynamic seals in the gas compression chamber, it eliminates leakage paths, ensuring complete containment of valuable and hazardous gases.
What is the typical service life of the diaphragm?
Under standard operating conditions, the high-quality stainless steel diaphragm can achieve a continuous operating life of over 6,000 hours. The precise servo pressure regulating valve maintains uniform stress on the diaphragm, which significantly extends its durability.
How does the diaphragm rupture alarm system protect the equipment?
The system features a three-layer diaphragm structure. If any layer ruptures, a built-in alarm sensor immediately detects the pressure change between the layers. This triggers an automatic shutdown to prevent any gas contamination or oil leakage, ensuring the safety of both personnel and the system.
Which cooling methods are supported for these compressors?
We offer both water-cooled and air-cooled configurations depending on your installation environment, system specifications, and ambient temperature conditions.
Can these compressors handle other high-purity gases besides nitrogen?
Yes. Thanks to the 316L stainless steel wetted components and oil-free compression chamber, these diaphragm compressors are highly suitable for various high-purity, rare, toxic, or flammable gases where contamination must be strictly avoided.