A-1 Air & Gas Co.
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Nitrogen Generator
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Nitrogen Generator

We manufacturer Nitrogen generator plant industrial and laboratory Models from 0.5 m3/hr to 200 m3/hr with 98 to 99.9 % purity.

Nitrogen gas is abundantly available in atmosphere; but to make it process worthy, we have to separate oxygen and minor part of innert gases from the air.

We have a PSA (Pressure Swing Adsorption) separation system to achieve all most pure Nitrogen through series of filtration process.

We use dry compressed air as input and process it under close controls through imported special molecular sieves to achieve higher purity of N2 range from 98% to 99.999% (depending on usage of application)

Parameters : kindly specify following parameters to design the right unit
  • Purity of nitrogen in %
  • Volume of nitrogen reqd in m3/Hr.
  • Pressure of N2 @ use point in bar or in bar.
Features :
  • Economical (Rs.6 to 8 per M3; compare to Rs.18 to Rs.20/M3)
  • Gives constant purity
  • Eliminates transport & supply dependency.
We also undertake reconditioning of any make of N2 plant.

Nitrogen GeneratorNitrogen Gas Plant


GET NITROGEN FROM THIN AIR
Nitrogen is an important input for a wide variety of industries - pharmaceutical, chemical, food & beverage, metallurgical - to name a few. It is used for inert atmosphere, sparing, filling, transfer, and many other applications.

Nitrogen is abundantly available in atmospheric air, but to get pure nitrogen as required in the above applications, oxygen has to be separated out from the air. However, before reaching this stage, the air has to be rid of other impurities like dust, oil, moisture, etc, to ensure that air reaching the separation stage is pure. In most modem industries, dry compressed air is generally available and this is used as the feed air to the Pressure Swing Adsorption (PSA) Separation System (see sketch) to generate nitrogen.

In the PSA System, oxygen is separated from the compressed air by adsorption. The System has two Absorbers containing carbon molecular sieves (CMS) which separates out the oxygen and allows the nitrogen to pass through. The nitrogen is collected in a Surge Vessel. Simultaneously, the other tower is rid of the oxygen (adsorbed in the previous cycle) by depressurization and back flushing of pure nitrogen from the Surge Vessel, to make it ready for the next adsorption cycle. Prior to change-over, the exhaust & outlet valves are closed so that the pressure in both towers are equalized. Nitrogen is drawn from the Surge Vessel at a measured rate thru the Rotameter. An Oxygen Analyzer (OA) can be used to measure oxygen content of the nitrogen being delivered to the User devices.

The PSA Nitrogen Gas Generator is a money-saving equipment which generates nitrogen at a substantially lower cost than that from cylinders. An additional benefit is that is eliminates the hassles & hazards associated with handling gas cylinders. We also undertake revamping of old Nitrogen Generators.

Features & Advantages

PSA Nitrogen Generator
  • Installation of PSA Nitrogen Gas Generator eliminates the hassles & hazards associated with use of Gas cylinders.
  • The Nitrogen Generator gives a consistent purity of Nitrigen as compared to uncertain Nitrogen quality from Gas cylinders.
  • Gas from Nitrogen Generator is very dry, thereby eliminating any problems due to presence of moistures.
  • Gas of desired purity is obtained with a short time from start-up.
  • The Gas Generator is fully automatic and does not reqire much attention. It has built-in safety features audio-visual alarm and / or automatic shut-down whenever system fault occurs.
  • The cost of Nitrogen works out to around Rs. 6/50 per M3 which includes cost of power (at Rs. 4/50 per KWH) intrest on capital, maintenance & adsorbent replacement costs.
  • Overall cost of around Rs. 6/50 per M3 compares very with Rs. 15/-to 20/- per M3 for commercial nitrogen of uncertain quality in cylinders.
Comparison of Gas Cylinder v/s Gas Generator with “Comparison of N2 Gas Cylinder v/s N2 Gas Generator

Description N2 Gas Cylinders N2 Gas Generators
Safety Hazardous & sudden leakage can result into accident in the laboratory area because of high cylinder pressure of 150 bar No cylinder & regulator and at all also avoid the risk and inconvenience associated with cylinder gas since generator operate on low pressure.Exm.4-6 bar
Economical Price of cylinder is high as compare to generator , since lot of cost involvement towards rent, transport, handling , labor charges , down time, maintenance of cylinder and regulator ,sudden leackage etc. Price is less compare to cylinder and imported generator + no custom + no excise duty.1time investment which can be recovered in few months.
Costing Cost of cylinder is approximate Rs. 150/ M3 including miscellaneous expenses. Cost of gas produced from gas generator Rs.12/m3 including power cost and maintenance.
Availability Interruption in analysis since frequent replacement of gas cylinder and sometimes nonavailability of high purity gas cylinder and transport problem. As there is no cylinder change it saves time and also it supplies gas round the clock 365 days pure and high quality gas supply.
Purity Chance of impure gas means purity not constant in all supplies of cylinder It always supply the gas of UHP grade and constant purity
Storage area Lots of space require for storing cylinders Less space require , as the generator can be stalled on the table on the floor on the laboratory.
  Imported Generator Indian Generator
Service Service may not be fast as the parts are not easily available and down time machine may me more. Service is very fast and parts are easily available since it is indigenous
Programming Facility Generator is avoid to run initially 1-2 to get pure gas constant flow. It has programming facilities,so no wastage of time an get always high purity gas
Parts Parts are not easily available and costly also. Parts are easily and are at reasonable rate

Other Products :
Air Dryer, After Cooler, Air Receiver, Auto Drain Valves Filters, Blowers, Air curtains Content which given in print.We also undertake repairs of N2 plant.

We also undertake repairs of N2 plant.

Perfect Air Piping System

Industrial Plumbing is most neglected area due to casual approach and unnoticed power wastage, due to poor workman ship, improper sizing, insufficient layout & poor material selection. The havoc of leak can be judged by following effect of Leakage :-

Leak Of : 1 drop/seconds = wastage of 8640 Liters/year
Leak Of : 1 mm Hole @ 6 bar Pressure = wastage of 3838 kw/year

We introduce the Zero leak ‘FUSION’ plumbing solution. The German concept of PPR piping.

PPR means Polypropylene Random Co polymer.

After CoolerAfter CoolerAfter CoolerAfter Cooler


Which gives unique properties like –
  • Good mechanical strength
  • Working pressure up to 20 bar, It can be supplied up to 35 bar pressure in special case.
  • Temperature –50c to +950c
  • Food grade, non corrosive safe material Can be successfully used up to 20 % acidic chemicals.
  • Safe for drinking water
  • Very less insulation is required as very less thermal energy loss.
  • Very smooth I.D.hence minimum Frictional loss
  • Very speedy work hence economic.
  • Reliable zero leak jointing
  • 50 years service life
Range : ½’’ to 6’’ O.D. dia
Length : 3 mtr [ 10 ft ]
Quality :
  • PN-6 – 6 kg Pressure
  • PN-8 – 8 kg Pressure
  • PN-10-10Kg Pressure
  • PN – 12.5 -12.5kg Pressure
  • PN-16-Kg Pressure
  • PN-20-Kg Pressure
  • PN-10(UV Resistant)
  • PN- 20(UV Resistant)
  • PnPN-20(UV Resistant)
Uses :
  • Compressed air, cold/hot water, drinking water
  • Food & beverages, dairy, swimming pool
  • Chemical, acid, effluent treatment plant
  • pharma, solar system R.O.plant, D.M.plant, etc.
Air Piping SystemPerfect Air Piping System

After Cooler

Compressed air is very hot (150°C plus) at ultimate outlet end. It can be cooled by versatile shell & tube water cooled after cooler with water as a cooling media or by air cooled after cooler with forced fan cooling air as cooling media. The temperature comes from 120°C to 40°C

Types
  • Air cooled after cooler
  • Water cooled after cooler (a ) Vertical ( b) Horizontal
Advatage :
  • Lot of water is separated in 1st phase from compressed air.
  • Less load on line air dryer & air filters.
Range :
  • 10-1000 CFM @ 12 bar working pressure
  • M.O.C : Shell: M.S.
  • Tube : Copper
We also repair & supply tube bundle assembly.

After Cooler


Our Other Products Are :-
Heatless refrigerated air dryers, Automatic drain valve