111 What Nitrogen Quality Do I Need? Traditional gas companies generally provide gas that is of high purity regardless of whether the application or process needs it. This is as a result of the ASU manufacturing process. Typically cylinder and liquid nitrogen has a maximum remaining oxygen content of between 5ppm to 20ppm v/v. The majority of applications do not need such high purity gas and the benefit of using a higher oxygen content Parker generated gas is that less energy is used to produce it, so the unit gas cost will be more competitive. For example using nitrogen with a maximum remaining oxygen content of 5% uses 5 times less energy to generate than with a maximum remaining oxygen content of 10ppm. Providing customers with ultra-high purity nitrogen in all instances is an unnecessary waste of money and energy. What do we mean by ‘purity’? By purity Parker means the maximum remaining oxygen content in the output nitrogen gas. Parker nitrogen technology when combined with Parker compressed air pre-treatment, guarantees the nitrogen gas to be commercially sterile, oil-free, dry and particulate free. (Within the specifications defined in the product information data contained in this catalogue.) The maximum remaining oxygen content required will vary with every application. Maximum cost and energy savings = maximum oxygen level permissible High Purity 10 ppm to 1000ppm (99.999% to 99.9%) Laser cutting 50ppm to 500ppm Heat treatment 10ppm to 1000ppm Electronics soldering 50ppm to 500ppm Pharmaceutical 10ppm to 5000ppm Low Purity 1% to 5% (99% to 95%) Fire prevention 5% Explosion prevention 2% to 5% Pressure testing 5% Gas seal blanketing 5% Chemical blanketing 1% to 5% Pigging 5% Autoclaves 5% Laser sintering 2% Dry boxes 2% Mid Purity 0.1% to 1% (99.9% to 99%) Food MAP 0.1% to 1% Food processing 0.1% to 1% Beer dispense 0.5% Wine blanketing 0.5% Oil sparging 0.5% Brazing 0.5% Injection molding 0.5% to 1% Wire annealing 0.5% Aluminium sparging 0.5% Typical PSA Installations Layout for standard industrial applications Compressor Nitrogen Buffer Vessel NITROSource PSA Nitrogen Gas Generator Nitrogen Compressed Air Nitrogen Storage CDAS HL Clean Dry Air System Air Receiver
RkJQdWJsaXNoZXIy MTQ4NTgyMQ==