Journal of Fluid Science and Technology
Online ISSN : 1880-5558
ISSN-L : 1880-5558
Papers
Effect of Multi Jets on Cavitation Performance of Globe Valves
Srambickal RAMMOHANSivasankaran SASEENDRANSivasailam KUMARASWAMY
Author information
JOURNAL FREE ACCESS

2009 Volume 4 Issue 1 Pages 128-137

Details
Abstract

Globe valves are one of the oldest valve types used for throttling applications for all sizes due to better controllability and range. One of the major limitations associated with the use of globe valves in liquid application is cavitation. It takes place both in part open and in fully open conditions due to varied reasons. There are different designs of globe valves available but for control valve applications, cage and plug designs are widely employed. Cage and plug design consists of body, valve cage, plug and an actuating mechanism. Actuating mechanism is connected to the valve plug (moving part), through valve shaft. There are many investigations reported about the flow visualization and numerical simulation of normal type globe valves. But study on valves with cage and plug design are not tried in detail. The objective of the present work is to provide a comprehensive study of flow through a globe valve with cage and plug design with emphasis on cavitation. Cavitation reduction is achieved by breaking the flow in the form of more than one liquid jets, there by increasing the turbulence in the valve flow path. This ensures the local static pressure not going below vapour pressure. Experimental studies were done in the water test facility with an operating pressure of 1.6 MPa and flow rate of 0.05 m3/s. In the study, total area of opening of the valve and the valve stroke were kept constant.

Content from these authors
© 2009 by The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top