Hydraulic characteristics of axial check valves available on the Polish market
DOI:
https://doi.org/10.36119/15.2021.4.1Keywords:
check valve, local loss coefficient, cracking pressureAbstract
The paper presents the results of measurements of head losses in check valves. The measurements were limited to the typical diameters used in domestic water supply systems. For analysis, valves of 3 producers were proposed, readily available in general installation and construction stores. For each valve, the parameters of local loss coefficient changes as a function of the flow velocity were determined and on their basis, the average values of the coefficients were calculated, which could be the basis to designing the installation with check valves. Moreover, the article presents the results of measurements of cracking pressure („opening”) through the valves.
Downloads
References
Skiba J. "Straty energii generowane przez urządzenia zapobiegające przepływom zwrotnym wody w instalacjach budynków wielorodzinnych", Instal nr 12/2011, s.31 - 34
PN-92/B-01706, Instalacje wodociągowe. Wymagania w projektowaniu. Wydawnictwa Normalizacyjne Alfa. 1992
Christopher., Dickenson, T. Valves, piping, and pipelines handbook (3rd ed.). Oxford, UK: Elsevier Advanced Technology. 1999
Troskolański A.T., “Hydromechanika techniczna. Tom II Hydraulika” Państwowe Wydawnictwa Techniczne”, Warszawa, 1954
Downloads
Published
Issue
Section
Categories
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain copyright and grant the journal the right of first publication, with the work simultaneously licensed under a Creative Commons Attribution 4.0 International License, which permits others to share the work with appropriate acknowledgment of the authorship and initial publication in this journal.
