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Company products

Serial membrane nitrogen plants MA

GRASYS serial membrane nitrogen plants offered in the MA model range are the most advanced and optimally configured equipment for production of gaseous nitrogen with the purity of up to 99.9%.

Serial plants in the MA series cover a significant range of nitrogen purity — from 90% to 99.9% and capacity of 2.5 to 3.110 nm³/hr. Despite the impressive output capacity characteristics, the plants equipment is arranged very compactly and has minimum weight.

The main assemblies of MA series 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 most recent developments, GRASYS nitrogen plants are exceptionally reliable, with membrane unit useful life of up to 180.000 hours of continuous operation.

MA nitrogen plants operate in a fully automated mode, with automatic support and monitoring of working parameters. No manned attendance is required during the plant operation. The option of flexible adjustment of the product nitrogen purity is another significant advantage of GRASYS nitrogen systems.

MA plants are used for inert nitrogen mixture production from atmospheric air for fire and explosion safety assurance at chemical, petrochemical and petroleum industry facilities. Nitrogen produced with MA plants is also used in food and pharmaceutical industries, microelectronics and other industries.

Plants technical characteristics

Model¹⁾	Capacity, nm³/hr depending on nitrogen purity ²⁾								Weight, kg³⁾	Dimensions, mm³⁾
Model¹⁾	90%	95%	96%	97%	98%	99%	99.5%	99.9%	Weight, kg³⁾	Dimensions, mm³⁾
MVA-20	43	20	17	13.5	10.5	7.5	4.5	2.5	80	920x560x1500
MVA-40	85	40	33	27	21	15	9	5	100	920x560x1500
MVA-80	173	79	66	54	42	29	18	10	120	920x560x1660
MVA-160	346	158	132	108	84	58	35	20	140	920x560x1660
MVA-240	518	238	198	162	126	86	52	30	160	950x950x1660
MVA-320	691	317	264	216	168	115	70	40	180	950x950x1660
MVA-400	864	396	330	270	210	144	87	51	200	950x950x1660
MVA-480	1037	475	396	324	252	173	104	61	220	950x950x1660
MVA-560	1210	554	462	378	294	202	122	71	240	950x950x1660
MVA-640	1382	634	528	432	336	230	139	81	260	950x950x1660
MVA-720	1555	713	594	486	378	259	157	91	280	950x950x1660
MVA-800	1728	792	660	540	420	288	174	101	300	950x950x1660
MVA-880	1901	871	726	594	462	317	191	111	320	950x950x1660
MVA-950	2074	950	792	648	504	346	209	121	340	950x950x1660
MVA-1030	2246	1030	858	702	546	374	226	131	400	1350x1350x1660
MVA-1110	2419	1109	924	756	588	403	244	141	420	1350x1350x1660
MVA-1200	2592	1188	990	810	630	432	261	152	440	1350x1350x1660
MVA-1270	2765	1267	1056	864	672	461	278	162	460	1350x1350x1660
MVA-1350	2938	1346	1122	918	714	490	296	172	480	1350x1350x1660
MVA-1430	3110	1426	1188	972	756	518	313	182	500	1350x1350x1660

¹⁾ Simplified models designation
²⁾ Capacity is referenced to normal operating conditions (t=20° C, P=1 atm)
³⁾Parameters are specified for gas separation unit (GSU)

Basic performance specifications

Parameter	Value
Product nitrogen parameters
–pressure, barg	10–11
–dewpoint, °С	−40…−60
Ambient air temperature
–during operation, °С	+5…+40
–during storage, °С	−20…+50
Warm-up period, max., minutes	10
Membrane modules useful life (capacity reduction of 10%)	130–180

Order

Data sheets for air separation plants (ZIP 45.3 Kb)

Catalogues

Membrane plants and stations (PDF 1.30 Mb)
Modern Gas Separation Technologies (PDF 3.41 Мb)

Permits and Certificates

Document title	Readable version	Printable version
Permit for Application РРС 00-26663	open	open (PDF/0.9 Mb)
Certificate of Type Approval 05.03566.009	open	open (PDF/1.15 Mb)
The conformity certificate РОСС RU.АИ50.Н07135	open	open (PDF/0.51 Mb)