... Dioxide, Sulpher Trioxide and Natural Gas.Application in Iron & Steel, Oil Refinery, Petro-Chemicals, Fertilizers & Chemicals, Air separation Plants, ... separation, instrument control, medicine etc.Parameters of natural gas, oil field gas compressor (table 5)parameterD-16.8/4- ... 22D-14/4-22.5D-14/2.5-22M-40/1.5-51structure typeDDDMcompressed mediumNatural gasPetroleum gasNatural gasNatural gascooling ...