Pump speed
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The centrifugal pumps used in chemical processing units can be either low-speed or high-speed pumps; why is there a difference in their rotational speeds? Is the speed of all motors 3000 rpm?
The motor speed varies; it is related to the number of poles in the motor. The selection of high or low speed for a centrifugal pump depends on process requirements, flow rate, pressure, medium density, temperature, and other factors
Thank you for your reply. Could you provide more details, or recommend any relevant materials? Thank you again!
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The motor is available in 2900 rpm/1470 rpm/960 rpm/735 rpm/560 rpm speeds, which are determined by the stator poles
Thank you for the reply; it seems I need to learn something about this area – I know absolutely nothing about it.
Thank you for the reply; what you provided is very useful.
The viscosity of liquids is usually around 2970. However, for single-stage pumps used with media such as liquefied gas or liquid propane, it is necessary to use high-speed pumps with a rotation speed of around 12,000 revolutions per minute, in order to prevent vaporization and vacuum formation
Non-volatile liquids use low speed 2970; volatile gases and liquids use high speed 12000
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