Many manufacturers began to choose homemade nitrogen because of the high cost and trouble of changing bottles after using large amounts of bottled nitrogen. Homemade nitrogen gas source comes to the air we breathe. The content of nitrogen in the atmosphere is 78%, the content of oxygen is 21% and 1% of other gases as well as dust, oil and water, homemade nitrogen requires filtering 1% of other gases. Then 21% of the oxygen separation, according to our industry is different, then the required purity is not the same, the general industry of nitrogen purity requirements in 99.9% to 99.99% of the industry requirements to reach 99.999% choose nitrogen machine self-made nitrogen the first step is to choose the purity of nitrogen according to their own industry, the second step is to choose the amount of nitrogen. The most important thing here is the choice of purity, basically select the required purity, the amount is handed over to our nitrogen manufacturer to help you calculate it, and the size of the air compressor and cold dryer to be prepared.

Under normal circumstances, the purity of nitrogen required for food preservation: 99.9%; Chemical industry 99.9%; Food storage 98 per cent; Welding 99.99%; Electronic appliances 99.99%. In short, all the problems that can not be solved, and other questions can be asked of our nitrogen machine manufacturers. Service phone :13277319555 (wechat) www.tly1688.com