Nitrogen Fire-Fighting Units

Grasys manufactures nitrogen units to provide fire and explosion safety at various facilities. The operating principle of a nitrogen fire-fighting unit is to create an inert atmosphere with a high nitrogen content, which makes combustion impossible.


up to 5,000 m3/h

Gas purity

up to 99.9%

Warm-up period

up to 10 minutes

Operating temperature

–50 to +40 °C

Applications of Nitrogen Fire-Fighting Units

The nitrogen fire-fighting unit is designed to extinguish fires caused by the ignition of various combustible substances that cannot burn without air access, such as oil, oil products or gas condensate, in confined spaces and premises, and to prevent fire and explosion hazards in oil and gas production facilities.

Product Images

Operating Principle of a Nitrogen Fire-Fighting Unit

The operating principle is based on the inert properties of the generated air mixture with a nitrogen content of 95–99%. Such level of nitrogen in the air makes combustion impossible. The gaseous nitrogen generated by the membrane gas separation unit of the nitrogen fire extinguishing unit is pressurised into a receiver whose capacity is calculated on the basis of the volume of the rooms and reservoirs to be protected by the unit.

Product Design Options

Fixed Design

Free equipment placement, on-skid or on-platform design.

Packaged Modular (Transportable)

Modular container or sea container design. Operation in various climatic zones.


Designed on a trailer, skids, as well as in a self-propelled version based on the KamAZ and URAL chassis.

Prefabricated Building

Modular frame building using light steel thin-walled structures and sandwich panels.
Тех. характеристики

Capacity, m³/hup to 5,000

Nitrogen purity, %up to 99.9

Pressure, MPaup to 35

Dew point temperature, °C−40 to −60

Operating temperature, °C−50 to +40

Membrane module operating life, thousand hoursup to 180

General Description

In the event of a fire, nitrogen is automatically injected into the space in which the ignition has taken place. This ensures that fires are extinguished quickly and reliably, without damage to equipment or personnel. The nitrogen fire-fighting unit can also be used to purge the process volumes, with the nitrogen generated being automatically replenished.

Nitrogen fire-fighting units have a number of objective advantages due to their ease of installation and maintenance and high cost effectiveness.

Applications of Grasys Nitrogen Fire-Fighting Units

  • Creating an inert atmosphere in process tanks in the oil and gas industry
  • Creating an inert atmosphere in storage facilities for flammable substances in various industries
  • Creating an inert atmosphere to prevent explosions in coal mines
  • Fire extinguishing in museums, galleries, exhibition halls, archives, bank vaults
Система управления и контроля

Advanced, Smart GRASYS Intelligent Control-8 Control and Monitoring System

The advanced, smart GRASYS Intelligent Control-8 monitoring and control system ensures the simplest and most convenient control of the GRASYS nitrogen fire-fighting unit.

The GRASYS Intelligent Control-8 monitoring and control system provides:

  • Full control of all plant systems;
  • Manual, automatic and remote control options;
  • The ability to integrate the unit's control system into the factory-wide control system;
  • Emergency interlocks to protect against falling outside the permitted limits of key process parameters;
  • Switching the plant to standby mode under zero nitrogen consumption;
  • A wide range of additional options, including the ability to control unit parameters via the Internet;
  • Archiving the main technical parameters of the plant.

The control panel is equipped with an active LCD display and shortcuts to access the most important functions.

Benefits of Grasys Nitrogen Fire-Fighting Units

  • No damage to equipment during fire extinguishing
  • Extinguishing efficiency independent of fire source location
  • Ability to maintain a safe atmosphere composition
  • Full automation with GRASYS Intelligent Control 8 smart monitoring and control system
  • Easy maintenance
  • High fault-tolerance
  • No refilling required
  • Environmentally friendly
  • Low operating costs
  • Perfect membrane module design in comparison to others on the market
  • Robust, state-of-the-art compressor from the world's leading manufacturer
  • Can be operated over a wide temperature range

Operating Procedure When Dealing With R&P Co. Grasys


Submit a request on the site or reach our specialist by phone


Grasys expert speaks to you and finds out your needs


You fill out a questionnaire with the desired equipment parameters


Our expert prepares a quotation with the most efficient solutions to your application. Contract to be concluded


We perform engineering, designing, manufacture equipment with its further testing and placing into service, etc


We ship equipment to the operational location and provide a package of documents


We are engaged in start-up operations and equipment commissioning


We provide aftersales service to ensure equipment efficient performance and reliability excellence (optional)

Advantages of Cooperating with R&P Co. Grasys

High-tech Russian manufacture

Implementation of import substitution programs

Hands-on experience in implementing over 1600 projects within 20 years

Manufacturing equipment of any size and level of sophistication

Turnkey projects (EPC-contracts)

Prompt technical support

Information contained herein does not constitute а public offer

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