Why high head and high volume can not be met with 1500rpm motors in case of PP pumps?

S

sarathy p

Guest
I am facing a problem in choosing a PP pump for Sodium Hypochlorite service . The flow rates are 9,16,30,300m3/hr each with disacharge heads of 30,40,40,40,20 metres respectively. The speed of the Motor shall not exceed 1500rpm. Are there any manufacturer for this pumps? please inform. If not, Please state reason why it is so. why PP pumps are mostly designed for 2900rpm and not for 1500rpm?
 
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