A. requires measures to prevent atmospheric corrosion for the petrochemical pumps installed in the presence of corrosive gases.
B. for the petrochemical pump installed in the outdoor environment below 20 centigrade, it is necessary to consider the cold embrittlement of the pump and adopt the low temperature resistance.
C. for the petrochemical pump installed in the explosion area, the explosion-proof motor should be used according to the level of the explosion area.
The continuous operation period of the pump should not be less than 8000h for the factory that requires a large overhaul every year by D.. In order to meet the requirements of a 3 year overhaul, the API 610 (Tenth Edition) stipulates that the continuous operation cycle of the pumps used in petroleum, petrochemical and natural gas industries is at least 3 years.
The design life of the E. petrochemical pump is generally at least 10 years. API 610 (Tenth Edition) stipulates that the design life of centrifugal pumps used in petroleum, petrochemical and natural gas industries is at least 20 years.
F. the design, manufacture and inspection of the pump used in petrochemical industry should be in accordance with the relevant standards and specifications.
G. pump should ensure the pump performance changes in the scope of the power voltage and frequency in the. The variation range of power supply voltage and frequency in China is: voltage 380V + 10%, 6000V + 10%; frequency 50Hz + 1Hz.
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