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Liquid nitrogen plants

We are acknowledged market leaders in manufacturing, fabricating and exporting high quality liquid nitrogen plants. With state of the art production facility at New Delhi (India), we have got experienced engineers who fabricate, manufacture and design nitrogen tank filling plants in technical collaboration with "Felice Mandressi Italia", an internationally acclaimed company. We ensure that all manufacturing processes are carried out in compliance with international standards. All our plants and equipment used in them are thoroughly quality-tested many times over before they are shipped to our clients. Components used in the manufacturing of plants are sourced only from the approved vendors. Our liquid nitrogen plants are guaranteed to generate nitrogen with purity up to 99.99%. Our plants come in several capacities ranging from 20 Liter/hour to 5000 Liter/hour. The output is stored in liquid storage tanks.

Our machinery is noted for seamless performance, low power consumption, reliability and durability. Our plants use advanced air separation columns for generating higher yield of oxygen. Our machinery is unmatched in performance, innovation and pricing. Our engineers oversee the entire process from erection, commissioning to the installation at the client’s site. Seeing our commitment to quality control processes, all the leading quality assurance companies such as ISO 9001:2008 and CE have certified us. It is mandatory for exporters wishing to sell their equipment into the US and the European markets.

Liquid Nitrogen Plant
Basic principle

A liquid nitrogen plant uses cryogenic distillation technology for production of oxygen. It uses air from the atmosphere. The feed air cleaned of all impurities such as moisture and carbon dioxide on entering the molecular sieve purification system. Air is liquefied by cryogenic cooling with the help of the latest plate and fin, high efficiency heat exchangers and expanders. Air gets separated into nitrogen, oxygen and various inert gases in the air separation column.

Features :
  • Easy Functioning
  • Sturdy and Compact Design
  • Trouble Free Operation
  • Life span over 35 years
  • Easy to install
  • Safe to operate
  • Fast and easy to operate
  • Compact design
  • Latest technology
  • Practically zero maintenance
  • Low power consumption
  • Liquid air separation technology
  • Skid mounted
Applications :
  • Steel Industry
  • Health care industry
  • Food and Beverage industry
  • Pharmaceutical industry
  • Chemical industry
  • Water processing industry
  • Oil & gas industry
  • Metal processing
  • Rubber and Plastic industry
Nitrogen Plant
Scope and Supply :
Air Compression
In the first stage, the air is compressed at a low pressure of 5-7 bar. Such low temperature is maintained by using advanced compressors.
Air Pre-Cooling
In the second stage, a low pressure refrigerant is used for pre-cooling the processed air to temperature around 12 degrees centigrade before it enters the purifier.
Purification of Air by Purifier
Air enters a purifier made of twin molecular sieve driers, each functioning in turn. The sieves eliminate the carbon dioxide and moisture from the process air before it enters the air separation unit.
Cryogenic Cooling of Air by Expander
Air is cooled to sub zero temperatures for liquefaction and cryogenic refrigeration. An efficient expander is used for cooling. Air is cooled to temperatures below -165 to -170.
Separation of Liquid Air into Oxygen and Nitrogen in Air Separation Column
Impurities such as oil, moisture and carbon dioxide are removed before air enters into a low pressure plate fin type Heat exchanger where the air is cooled below sub zero temperatures by air expansion process in the cryogenic expander. Due to the excellent thermal efficiency we can achieve a temperature difference delta t as low as 2 deg c at the warm end of these exchangers.
Liquid nitrogen stored in cryogenic liquid tanks
Liquid Nitrogen is directed from the cold box into the liquid storage tank, which is equipped with a pressure control panel. The control receives the signal for the demand for gaseous nitrogen and regulates the gas flow into the end-users pipeline to maintain line pressure. An ambient air vaporizer is used to vaporize stored liquid nitrogen.
Technical Specifications
BDM L-50 55 Liters / hr 1.5 Tons per day 99.7%
BDM L-80 90 Liters / hr 2.5 Tons per day 99.7%
BDM L-100 100 Liters / hr 3 Tons per day 99.7%
BDM L-150 180 Liters / hr 5 Tons per day 99.7%
BDM L-200 215 Liters / hr 6 Tons per day 99.7%
BDM L-250 290 Liters / hr 8 Tons per day 99.7%
BDM L-300 360 Liters / hr 10 Tons per day 99.7%
BDM L-400 425 Liters / hr 12 Tons per day 99.7%
BDM L-500 540 Liters / hr 15 Tons per day 99.7%