Download Centrifugal Pumps by Igor J. Karassik, Roy Carter PDF

By Igor J. Karassik, Roy Carter

This final, the schooling of pump clients, is strictly what this e-book was once meant to do. To what quantity we should have accomplished our goal, our readers needs to come to a decision. My buddy and affiliate, J. T. (Terry) McGuire, and i've been operating very heavily jointly for a very long time. Our view of engineering difficulties and in their suggestions coincide to an brilliant measure. whilst i used to be requested to arrange a moment version of my e-book Centrifugal Pumps, it was once logical that I became to Terry and steered that he be my coauthor in this undertaking. He agreed to take action, and his cooperation has been most precious, either in bettering the consequent paintings and in easing my burden. it'd be presumptuous on my half to fake that not anything has replaced within the know-how of centrifugal pumps through the 30 years due to the fact I ready the manuscript for the 1st version of this publication. enable me, then, communicate of a few of those changes.

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Sample text

Therefore, to avoid misunderstanding, clockwise or counterclockwise rotation should always be clarified by including the direction from which one looks at the pump. Casings and Diffusers 39 The tenns "inboard end" and "outboard end" are used only with horizontal pumps. Inboard end is the one closest to the driver, whereas the outboard end is the one farthest away. The tenns lose their significance with dual-driven pumps and are not then used. Many centrifugal pump casings produced from one pattern can be built into a pump of either clockwise or counterclockwise rotation.

Discharge size. In all of these, the small size makes it feasible to cast the volute and one side integrally. Whether the stuffing box or suction side is made integrally with the casing is usually determined by the service for which the pump is intended. Designs for general, chemical, and process service have a so-called stuffing box or casing Fig. 18 Section of frame-mounted end-suction pump with radially split casing. Note the suction cover. Casings and Diffusers Fig. 19 33 Section of radially split, foot mounted end-suction pump with two covers (suction and stuffing box).

15), the pump is classified as a side-suction pump. If its suction nozzle points vertically downward (Fig. 26), the pump is called a bottom-suction pump. Single-stage bottom-suction pumps are rarely made in sizes below lO-in. discharge nozzle diameter. Fig. 25 Centerline supported, radially split single stage pump with top suction and discharge nozzles. 38 Casings and Diffusers Fig. 26 Bottom-suction single stage axially split casing, single stage pump. Special nozzle positions can sometimes be provided for double-suction axially split casing pumps to meet special piping arrangements, for example, a vertically split casing with bottom suction and top discharge in one half of the casing.

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