Experimental Study on Pressure Distribution and Flow Coefficient of Globe Valve

Processes - Tập 8 Số 7 - Trang 875
Quang Khai Nguyen1, Kwang Hyo Jung1, Gang Nam Lee1, Sung-Bu Suh2, Peter To3
1Department of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, Korea
2Department of Naval Architecture and Ocean Engineering, Dong-Eui University, Busan 47340, Korea
3College of Science & Engineering, James Cook University, Townsille, QLD 4811, Australia

Tóm tắt

In this study, the pressure distribution and flow coefficient of a globe valve are investigated with a series of experiments conducted in a flow test loop. The experiments are performed on a three-inch model test valve from an eight-inch ANSI (American National Standards Institute) B16.11—Class 2500# prototype globe valve with various pump speeds and full range of valve openings. Both inherent and installed flow characteristics are measured, and the results show that the flow coefficient depends not only on the valve geometry and valve opening but also on the Reynolds number. When the Reynolds number exceeds a certain value, the flow coefficients are stable. In addition, the pressures at different positions in the upstream and the downstream of the valve are measured and compared with recommendation per ANSI/ISA-75.01 standard. The results show that, in single-phase flow, the discrepancies in pressure between different measurement locations within close range of 10 nominal diameter from the valve are inconsiderable.

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Tài liệu tham khảo

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Processes

Tập 8 Số 7

875

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