Whether you need oxygen or nitrogen, it does not matter if you are planning for air separation plants. Purchase an air separation plant, which can offer both oxygen and nitrogen on a regular basis with high purity upto 99.7% and 99.99% respectively. With the passage of time, the plant has updated to cryogenic air separation plant meaning now it is technologically very advanced and operates at low pressure. The plants need low power to function and offer maximum output. In addition, it is very quick to start after shut down.
There are a number of cryogenic air separation plant manufacturer in India, so you need to choose one if you are a quality centric person. In addition, the manufacturers offer huge discount in order to retain existing customers and lure potential ones. On the other hand, they offer a number of plants with varying capacity, so you need to select one as per your requirement as well as budget. In order to update themselves, the Indian manufacturers also technologically get associated with ING. L. & A. Boschi of Italy.
On the other hand, with the increasing demand of industrial oxygen gas plant, some companies in China have started manufacturing low quality plants and selling them in the international market. Avoid such Chinese companies as their plants are susceptible to explosion.