Liquid Nitrogen Plants

We are a reputed manufacturing company which is known for fabricating high quality liquid nitrogen/oxygen plants. Being in the business for over three decades, we have years of experience and skilled manpower to design, manufacture and supply liquid nitrogen tank filling plant and other oxygen nitrogen generating plants in technical collaboration with "Felice Mandressi Italia", a famous Italian company. Each manufacturing process at our unit is carried out in compliance with international standards. All components used in the manufacturing are sourced only from the approved vendors. With our liquid nitrogen plants, you are guaranteed to generate liquid nitrogen with purity up to 99.99%. Our plants come in several capacities ranging from 20 Liter/hour to 1000 Liter/hour. The out can be stored in liquid storage tanks.

Our plants use advanced air separation columns to get a high yield of nitrogen. Our machinery is characterized by flawless performance, low power consumption besides being reliable and durable. Our engineers oversee the entire process from supervision, installation, commissioning and erection to operationalization of the plant at client’s site. For commitment to quality, we have been awarded ISO 9001:2008 and CE certifications. It is mandatory for exporters to have CE certification if they want to sell their machinery into the US and European markets.

Liquid Nitrogen Plant
Basic principle

Our liquid nitrogen plants tap atmospheric air, which enters the molecular sieve purification system where the process air is cleaned of impurities such as carbon dioxide and moisture. 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 :
  • Chemical industry
  • Water processing industry
  • Food and Beverage industry
  • Pharmaceutical industry
  • Oil & gas industry
  • Steel Industry
  • Metal processing
  • Rubber and Plastic industry
  • Health care industry
Nitrogen Plant
Scope and Supply :
Air Compression
In the first stage, the air is compressed at a low pressure of 5-7 bar. Advanced compressors are used for maintaining such low pressure.
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 goes inside the purifier.
Purification of Air by Purifier
Air is made to go inside 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 eliminated 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 transferred from the cold box into the liquid storage tank, which is equipped with a pressure control pane. The control senses 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%