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Influence of the wall thickness on the allowable and failure pressures of two- and tree-way globe valve bodies (CROSBI ID 173510)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Opalić, Milan ; Galić, Ivica ; Vučković, Krešimir Influence of the wall thickness on the allowable and failure pressures of two- and tree-way globe valve bodies // Key engineering materials, 488-489 (2012), 646-649. doi: 10.4028/www.scientific.net/KEM.488-489.646

Podaci o odgovornosti

Opalić, Milan ; Galić, Ivica ; Vučković, Krešimir

engleski

Influence of the wall thickness on the allowable and failure pressures of two- and tree-way globe valve bodies

A globe valve is a linear motion valve used to shut off and regulate fluid flow in pipelines. Depending on the number of process connections, they are produced as two- or three-way valves. The main valve component carrying the internal pressure is the valve body. For safe exploitation, the valves are designed with the allowable internal pressure taken into consideration. The aim of this paper is to investigate the influence of the wall thickness on the allowable and failure pressures of two- and tree-way globe valve bodies, DN50 and DN100 respectively. Twiceelastic-slope (TES) and the tangent-intersection (TI) methods are used to obtain the plastic collapse pressures at the critical location which was determined (Fig. 1a and 1b) at the location where maximum equivalent plastic strain throughout the valve body thickness reaches the outer surface. Obtained values are used afterwards to calculate corresponding allowable pressures according to the limit design method, while the failure pressure at the same location was determined as the highest point from the load-maximal principal strain curve. Calculated allowable pressure values, for both valve bodies, are compared with the corresponding ones obtained using the EN standard.

plastic collapse pressure; allowable pressure; failure pressure; two-way globe valve; tree-way globe valve

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Podaci o izdanju

488-489

2012.

646-649

objavljeno

1013-9826

10.4028/www.scientific.net/KEM.488-489.646

Povezanost rada

Strojarstvo

Poveznice
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