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http://dx.doi.org/10.7731/KIFSE.2016.30.4.046

CPVC Valve Tightening Torque Impact Sockets on the Leaks  

Lim, Chun-Ki (Dept. of Fire Administration, Dong-shin Univ.)
Baek, Eun-Sun (Dept. of Fire Administration, Dong-shin Univ.)
Publication Information
Fire Science and Engineering / v.30, no.4, 2016 , pp. 46-58 More about this Journal
Abstract
In this study, the stress applied to screw section, strain, displacement, von Mises stress, and the compression stress applied to the rubber packing for watertightness are estimated with computer simulation when the tightening torque of valve socket is in the range of $10{\sim}130N{\cdot}m$ in order to analyze the influence of valve socket screw section in accordance with the excessive tightening which is supposed to be the cause of water leakage from the synthetic resin piping for fire fighting application of sprinkler equipment, and for the sake of verifying this, adequate value of tightening torque and the value of the compression stress of rubber packing are investigated by examining the number of connected thread for each tightening torque, the deformation state of valve socket and rubber packing and conducting the water hammering test. The result of this test is expected to be utilized as the data required for revising the standard or technical criteria to prevent the water leakage of the synthetic resin piping for fire fighting application.
Keywords
Computer simulation; Tightening torque; Von mises stress;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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