"The explosion-proof rating is no less than ExdⅡBT4, resistant to salt spray, ethanol medium, and the size is also restricted..." When these requirements were presented, the first reaction of many temperature control manufacturers was: "High requirements, difficult to handle." This was a recent customer request from the petrochemical industry that AODE received. The user wanted to cool two oil and gas experimental equipment and already had an oil and gas heat exchanger on hand. They needed to pu



















