Get Pump Data Sheet

ASME B73.3, 2022 Edition, 2022 - Specification for Sealless Horizontal End Suction Centrifugal Pumps for Chemical Process. (a) This Standard is a design and specification standard that covers metallic and plastic-lined sealless centrifugal pumps of horizontal, end-suction single-stage, centerline discharge design.

As you can see from figure 2, centrifugal pumps can be categorised in different groups: Radial flow pumps, mixed flow pumps and axial flow pumps. Radial flow pumps and mixed flow pumps are the most common types used.

For a wear ring with a 2” diameter or less, API lists the minimum diametral clearance as 0.010”. For every 0.5” increase of the impeller wear ring OD, the 0.010” diametral clearance increases by 0.001”. So, from 2.000” to 2.499” OD, the diametral minimum clearance is 0.011”.

Centrifugal pumps generate flow by using one of three actions: radial flow, mixed flow, or axial flow. Axial flow pumps are characterized by high flow and low pressure. They lift liquid in a direction parallel to the impeller shaft, operating essentially the same as a boat propeller.

The most common centrifugal pump used in power plants is the radial flow pump. Radial flow pumps are very efficient and can operate at high pressures. However, they are not well suited for use in low-pressure systems.

Single-stage centrifugal pumps can be classified into horizontal pumps, vertical pumps, single-suction pumps, and double-suction pumps.

As you can see from figure 2, centrifugal pumps can be categorised in different groups: Radial flow pumps, mixed flow pumps and axial flow pumps. Radial flow pumps and mixed flow pumps are the most common types used.

Understanding the Basic Formula: The flow rate (Q) of a centrifugal pump can be calculated using the formula: Q = (π * D^2 * n * H) / (4 * g), where D represents the impeller diameter, n represents the pump speed (RPM), H represents the head, and g represents the acceleration due to gravity.