Serial Membrane Nitrogen Generation Units

MA series membrane units are the most advanced equipment ideally suited for generation of gaseous nitrogen with a purity of up to 99.9%. Membrane nitrogen generation units are highly automated, reliable, easy to operate and maintain.


up to 3,150 m3/h

Nitrogen purity

up to 99.9%


up to 4 MPa

Warm-up period

up to 10 minutes

GRASYS MA series membrane units are the most advanced equipment ideally suited for generation of gaseous nitrogen with a purity of up to 99.9%.

MA series units cover a significant range in nitrogen purity - from 90 to 99.9%, and capacity - from 10 to 3,150 m³/h. Despite the impressive technical characteristics of the units in terms of the volume of nitrogen produced, the equipment is very compact and has a minimum weight.

Product Images

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/h up to 3,150

Nitrogen purity, % up to 99.9

Pressure, MPa up to 4

Dew point temperature, °C −40 to −60

Operating temperature, °C+5 to +40

Membrane module operating life, thousand hoursup to 180

General Description

Membrane nitrogen generation units are the preferred option for producing gaseous nitrogen with a purity of up to 99.9% at system production capacities of up to 180 m³/h or lower purity at capacities of up to 5,000 m³/h. Where the nitrogen of a higher purity, from 99.95% to 99.9995%, is required, which cannot be achieved by membrane technology, the use of ad.

The main components of the Grasys membrane units are the compressor unit, air treatment unit, gas separation unit and the GRASYS Intelligent Control-8 monitoring and control system. The gas separation unit consists of specially configured modules that generate nitrogen of the required purity from the atmospheric air.

GRASYS Intelligent Control-8 is a state-of-the-art, smart, multi-functional monitoring and control system that enables the automatic operation of Grasys units, including remote access and archiving, and integration into a superordinate control system.

By using the latest technology, Grasys nitrogen generation units are extremely reliable, with a membrane unit life of up to 180,000 hours of continuous operation.

Applications of Grasys Membrane Nitrogen Generation Units

  • Creating an inert atmosphere in various processes
  • Ensuring explosion and fire safety in various processes
  • Testing and purging of pipelines and equipment
  • Cleaning of process reservoirs
  • Preventing oxidation processes
  • Nitrogen fire extinguishing
  • Process catalyst regeneration
  • Product packaging in a nitrogen atmosphere
Control and Monitoring System

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 generation unit.

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

  • Full control of all unit 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 unit 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 unit.

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

Benefits of Grasys Membrane Nitrogen Generation Units

  • Using the high-performance membrane modules of the latest generation
  • Advanced, smart GRASYS Intelligent Control-8 control and monitoring system with manual, automatic and remote control options
  • Reliable, advanced components from the world's leading manufacturers
  • The ability to generate nitrogen with a purity of up to 99.9%
  • Minimum operating costs
  • Small-sized, lightweight
  • Long operating life of the units
  • Exceptional reliability and high build quality based on extensive manufacturing experience
  • Perfect membrane unit design
  • High energy efficiency
  • Low cost of generated nitrogen
  • Quick start-up and shut-down of the system

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 1500 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

Learn more
Submit a request and our manager will reach you out shortly

Submit a request
A leading manufacturer and EPC-contractor in gas separation and compression


About Us

Equipment Request
telegram Telegram-bot