Serial membrane nitrogen plants MA

Serial membrane nitrogen plants offered by Grasys in the MA lineup are the most up-to-date and optimally selected equipment for gaseous nitrogen production with the purity of up to 99.9%.

Serial MA plants cover a considerable range in terms of nitrogen purity — 90 to 99.9% and nitrogen production capacity — 10 to 3,150 nm³/hr. Despite the plants impressive technical characteristics as regards the product nitrogen output, the equipment is very compact and has a minimum weight.

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Serial membrane nitrogen plants MA
General informationTechnical characteristicsBasic technical characteristicsControl systemBookletsDocumentation

General information

The main parts of MA serial plants are the compressor unit, air treatment unit, gas separation unit and the control system. The gas separation unit consists of specially configured modules producing required purity nitrogen from atmospheric air. Due to the use of the latest achievement, Grasys nitrogen plants are exceptionally reliable with the membrane unit operational life up to 150,000 hours of continuous operation.

MA nitrogen plants operate in a fully automated mode with automatic maintenance and control of process parameters. No manned attendance is required during plants operation. The option of flexible adjustment of product nitrogen is another significant advantage of Grasys nitrogen systems.

MA plants are efficiently used for production of inert gas mixture from atmospheric air fro the assurance of explosion and fire safety at enterprises of chemical, petrochemical and petroleum industry. Nitrogen produced by MA plants is also used in food and pharmaceutical industries, microelectronics and other sectors.

Basic technical characteristics of MA serial membrane nitrogen plants

Parameter Value
Nitrogen parameters at the plant output
  • pressure, atmg
5–40
  • dewpoint, °C
−40…−60
Ambient air temperature
  • during operation, °C
+5…+40
  • during storage, °C
−50…+50
Warm-up period, max, minutes 10
Membrane modules operational life, thous. hours up to 180

Technical characteristics

Model(1)Capacity, nm³/hr depending on nitrogen purity, %(2)Weight, kg(3)Dimensions, mm(3)
90959697989999,599,9
MVA-1.4-95-8017580665442302010120920×560×1660
MVA-1.4-95-16035016013210884604020140920×560×1660
MVA-1.4-95-240525240198162126906030160950×560×1660
MVA-1.4-95-3207003202642161681208040180950×560×1660
MVA-1.4-95-40087540033027021015010050200950×950×1660
MVA-1.4-95-480105048039632425218012060220950×950×1660
MVA-1.4-95-560122556046237829421014070240950×950×1660
MVA-1.4-95-640140064052843233624016080260950×950×1660
MVA-1.4-95-720157572059448637827018090280950×950×1660
MVA-1.4-95-8001750800660540420300200100300950×950×1660
MVA-1.4-95-8801925880726594462330220110320950×950×1660
MVA-1.4-95-9602100960792648504360240120340950×950×1660
MVA-1.4-95-1040227510408587025463902601304001350×1350×1660
MVA-1.4-95-1120245011209247565884202801404201350×1350×1660
MVA-1.4-95-1200262512009908106304503001504401350×1350×1660
MVA-1.4-95-12802800128010568646724803201604601350×1350×1660
MVA-1.4-95-13602975136011229187145103401704801350×1350×1660
MVA-1.4-95-14403150144011889727565403601805001350×1350×1660
  1. The designation of generator models is provided for the basic nitrogen production mode with the residual oxygen content of 5% vol.
  2. Each generator model allows producing nitrogen in any concentration in accordance with the parameters set out in the table above.
    The capacity is referenced to the standard conditions (t = 20 °C, P = 1 atm).
  3. The parameters are specified for the gas separation unit (GSU).

State-of-the-art intelligent control system GRASYS Intellegent Control-8

The state-of-the-art intelligent control system GRASYS Intelligent Control 8The state-of-the-art intelligent control system GRASYS Intelligent Control-8 guarantees the ultimately simplified and convenient control of Grasys nitrogen station operation.

The GRASYS Intelligent Control-8 system

  • Ensures complete control of operation of all station systems
  • Enables manual, automatic and remote control
  • Provides the opportunity for plant controls integration in the factory-wide control system
  • Provides necessary interlocks in case of overrun of the main process parameters
  • Provides the opportunity for plant switching-over to standby mode with no nitrogen consumption
  • Has a broad range of additional options, including the opportunity for station parameters control via Internet
  • Allow archiving of the station main process parameters

The control panel has a LD-display and “hot” buttons for quick access to the critical functions.

Permit documentation

No. 1-258- 329/2019 Download PDF; 1,02 MB
No TC N RU D-RU.MM06.B.00731 Download PDF; 463,05 KB
View all certificates and permits of Grasys
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