1. According to the actual use of conditions to determine the steam inlet and outlet pressure drop. Steam trap inlet pressure is due to fluctuations in steam pressure or temperature regulating valve throttling, steam trap inlet minimum working pressure; steam trap outlet pressure refers to the steam trap may form the highest back pressure When discharged into the atmosphere, the actual pressure difference is determined by the steam trap inlet pressure.
Flame retardant is mainly used for inflammable polymer flame retardant functional additives, mainly for polymer materials flame retardant design; There are many kinds of flame retardants, according to the method of use is divided into added flame retardants and reactive flame retardants. In particular, plastics should be used in transportation, construction, electrical equipment, aviation, space flight and other aspects to solve the flame retardant problem.
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