
As a professional manufacturer with over ten years of experience in the field of nitrogen generation technology, LDH GAS has always focused on technological innovation as its core and customized services as its hallmark, providing efficient and reliable nitrogen generation solutions for the global industrial sector.
The company has now established a complete chain capability from core technology research and development to large-scale production, from customized design to global services, and has become a trusted partner for gas generation equipment.
In terms of technology and production strength, LDH GAS has assembled a professional technical team composed of gas separation experts, mechanical engineers, and process research talents. They have deeply explored the two core technical paths of membrane separation and pressure swing adsorption (PSA), and can precisely control the nitrogen production requirements ranging from 95% to 99.999% purity levels. The supporting large-scale production team relies on the ISO standard manufacturing system and uses 3D CAD design systems and automated material management technologies to achieve precise manufacturing and strict quality control from core components to the entire system, ensuring that each device meets international common quality and safety standards.


We are nitrogen generator experts
Efficiently produce nitrogen gas, support remote monitoring, and be able to view the operation status in real time through the intelligent system, facilitating management. Adopting advanced technology ensures stable output and meets the requirements of continuous operations. The purity can be flexibly adjusted and can be precisely adjusted according to different scenarios to be compatible with multiple industries.
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5K +Completed Projects5k complete work
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30 +Our ExpertExpert design worker

product key technologies

The starting point of customized services
The technical team will complete a precise profile through the "three-dimensional research method":
Core parameter customization: For core indicators such as nitrogen purity (95% - 99.9995%), flow rate (10L/h - 1150Nm³/h), and output pressure (up to 16barg), a matching solution combining two technical paths - (PSA) and membrane separation - will be designed based on the characteristics of these technologies - for example, a 99.999% ultra-high-purity nitrogen system is customized for the precise welding scenario in electronic manufacturing, and an 99% economical membrane separation device is provided for the food preservation scenario;
Modular system design: Balancing adaptability and scalability
Based on the design concept of "core modules + functional plugins", the customized solutions can be flexibly combined and upgraded in the future:
Structural form customization: Provide various forms such as cabinet-style (for laboratory scenarios), skid-mounted (for rapid installation in industrial sites), and container-style (for mobile gas supply needs), minimizing the floor space through compact layout, for example, designing a stacked system for the space-constrained electronic cleanroom, reducing the floor area by 40%;

Function integration customization: Integrate air compression, drying and dehydration, nitrogen pressurization, and bottle group filling and other supporting modules as needed to form a "one-stop gas supply unit" - for example, a fully integrated skid-mounted station including air compressor, dryer, and nitrogen generator is customized for remote oil fields, allowing independent operation without additional equipment;
Expansion reserve customization: Reserve expansion space through modular interface design, when the customer's production capacity increases, the number of adsorption towers or membrane components can be directly increased to achieve a smooth upgrade of nitrogen gas output from 50Nm³/h to 200Nm³/h, avoiding repeated investment in equipment.

Intelligent Control:
The nitrogen generator has the function of remote monitoring and controlling the equipment. It is connected to the internet and can be directly viewed on a mobile phone or computer regarding the operation status of the equipment, such as purity, flow rate, pressure, etc.
The equipment has a timed start and stop function. It can start and stop immediately, which can significantly improve the operation efficiency and flexibility of the equipment, reduce manual intervention and ensure the stability of gas supply.
The production process automatically stops upon completion, saving energy consumption. Production data can be exported at any time for easy inspection of the equipment's operation status and maintenance.

Remote monitoring, real-time control
Remote operation, convenient adjustment
Timed start and stop, precise timing
Reduce manual labor, improve efficiency

The working principle of the nitrogen generator

Equipment selection parameter table
| Capacity | Purity (%) |
Model | length(mm) | Width(mm) | Height (mm) |
Weight(kg) | Inlet size (DN) |
Outlet size(DN) | Buffer tank volume(m³) |
|---|---|---|---|---|---|---|---|---|---|
| 5 | 99 | LPN-5 | 1000 | 1000 | 1640 | 380 | DN15 | DN15 | 0.25 |
| 99.9 | LPN-5 | 1000 | 1000 | 1640 | 380 | DN15 | DN15 | 0.25 | |
| 99.99 | LPN-5 | 1300 | 1100 | 1400 | 560 | DN15 | DN15 | 0.3 | |
| 99.999 | LPN-5 | 1300 | 1100 | 1400 | 560 | DN15 | DN15 | 0.3 | |
| 20 | 99 | LPN-20 | 1450 | 1300 | 1450 | 700 | DN20 | DN15 | 0.3 |
| 99.9 | LPN-20 | 1500 | 1400 | 2030 | 900 | DN25 | DN20 | 0.5 | |
| 99.99 | LPN-20 | 1500 | 1500 | 1700 | 1000 | DN25 | DN15 | 0.5 | |
| 99.999 | LPN-20 | 1600 | 1450 | 1950 | 1400 | DN25 | DN15 | 0.5 | |
| 50 | 99 | LPN-50 | 1600 | 1400 | 2100 | 1100 | DN25 | DN20 | 0.5 |
| 99.9 | LPN-50 | 1700 | 1500 | 2100 | 1300 | DN25 | DN15 | 0.5 | |
| 99.99 | LPN-50 | 1700 | 1550 | 2160 | 1500 | DN40 | DN25 | 0.5 | |
| 99.999 | LPN-50 | 2000 | 1800 | 2500 | 2300 | DN40 | DN40 | 0.5 | |
| 100 | 99 | LPN-100 | 1600 | 900 | 2230 | 1050 | DN40 | DN50 | 1.5 |
| 99.9 | LPN-100 | 1800 | 1750 | 2250 | 1400 | DN40 | DN25 | 1.5 | |
| 99.99 | LPN-100 | 2100 | 1950 | 2250 | 2700 | DN40 | DN40 | 1 | |
| 99.999 | LPN-100 | 2200 | 1300 | 2900 | 3300 | DN65 | DN40 | 2 | |
| 150 | 99 | LPN-150 | 1800 | 1150 | 2200 | 1400 | DN40 | DN25 | 1.5 |
| 99.9 | LPN-150 | 2100 | 1200 | 2250 | 2200 | DN40 | DN40 | 1.5 | |
| 99.99 | LPN-150 | 2200 | 1300 | 2700 | 3200 | DN50 | DN40 | 2 | |
| 99.999 | LPN-150 | 2200 | 1500 | 3100 | 4400 | DN80 | DN50 | 4 | |
| 200 | 99 | LPN-200 | 2000 | 1150 | 2300 | 1700 | DN40 | DN25 | 2 |
| 99.9 | LPN-200 | 2100 | 1200 | 2500 | 2200 | DN40 | DN50 | 2 | |
| 99.99 | LPN-200 | 2200 | 1400 | 2850 | 4100 | DN65 | DN50 | 2.5 | |
| 99.999 | LPN-200 | 2200 | 1500 | 3000 | 4100 | DN65 | DN50 | 4 |

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