The INOXCVA Nitrogen Pumping Unit is a hydraulic heat recovery Liquid Nitrogen Pump and vaporizer system. Both pump power and vaporizer heat are supplied by the two co-generative diesel power packs which convert the waste engine heat into useful heat for the vaporizer. The liquid is pressurized by a triplex pump before being sent to the vaporizer. At the vaporizer, the high pressure liquid absorbs heat sufficient to raise the temperature to 70degrees Fahrenheit, converting the liquid to a gas state.Thereafter, the nitrogen gas flows out the discharge valve at pressure and flow rate required for the job. These units are provided with Data Acquisition System.