... SIMENS PLC Controller 1, Product Name: Nitrogen GeneratorA full installation requires air compressor, refrigeration dryer, filters, air tank, nitrogen ... Coal-mine, Metallurgy, Pharmacy, SMT, Fire-resistance, lab, Air driving, and so on... 1. Metallurgy: For anneal protection ... valve guarantees stable equipment operation. 6. Air tank ensures stable system air consumption. 7. Nitrogen buffer tank ensures ...