... Controller 1, Product Name: Nitrogen Machine/ N2 Gas EquipmentA full installation requires air compressor, refrigeration dryer, filters, air ... Food storing, Electric & Electronic industry, Petro-gas & Oil field, Chemicals & Petro-chemicals, Coal-mine, Metallurgy, Pharmacy, SMT, Fire- ... molecular sieve. 5. National patent valve guarantees stable equipment operation. 6. Air tank ensures stable system air ...