Hydraulic characteristics of axial check valves available on the Polish market
author:
ROBERT MAŃKO, RYSZARD EWERTOWSKI
ORCID ID:
0000-0001-5592-7709, 0000-0003-0896-7710
No:
04/2021 Instal p. 8-13
DOI:
10.36119/15.2021.4.1
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.
Keywords:
About Authors:
dr inż. Robert Mańko, https://orcid.org/0000-0001-5592-7709, dr hab. Ryszard Ewertowski, https://orcid.org/0000-0003-0896-7710 – Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Wydział Budownictwa i Inżynierii Środowiska, Szczecin. Corresponding author:: Robert.Manko@zut.edu.pl,