Research Papers

Direct Measurement of Net Positive Suction Head

[+] Author and Article Information
Robert B. Jacobs, Kenneth B. Martin

National Bureau of Standards, Boulder, Colo.

Richard J. Hardy

U. S. Naval Ordnance Laboratory, Corona, Calif.

J. Basic Eng 81(2), 147-150 (Jun 01, 1959) (4 pages) doi:10.1115/1.4008397 History: Received April 25, 1958; Published June 01, 1959; Online February 20, 2019


A simple, reliable, and accurate method for measuring net positive suction head is described, difficulties which may be encountered in its application are discussed, and test information indicating its reliability and accuracy is presented. The device which embodies the method consists of a vapor-pressure bulb that measures the vapor pressure of the liquid, a pressure tap that measures stagnation pressure, and a pressure gage to indicate (and record, if desired) the difference between the two pressures.

Copyright © 1959 by ASME
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