Calculation and Selection of Y Strainer

Calculation and selection of Y Strainer

The size of the Y Strainer is selected according to the diameter of the pipeline on which it is installed. Usually, Y Strainers do not cause significant pressure losses, but it is recommended to verify the selected size by hydraulic calculation.

The main characteristics that influence the selection of Y Strainers are the diameter of the mesh opening, nominal pressure, and the permissible temperature range of the transported fluid.

For heating, ventilation, and water supply systems, it is recommended to choose a filter with a mesh opening diameter of 0.5 to 2.0 mm. The maximum operating pressure at the point of installation of the Y Strainer should be less than its nominal pressure PN, and the temperature limits of the transported fluid should fall within the permissible temperature range for this filter.

It should be remembered that the nominal pressure for filters, as well as for other types of fittings, is determined at a water temperature of 20°C. At higher temperatures, the nominal pressure value decreases. Therefore, it is not allowed to operate Y Strainers in conditions where both the pressure and the temperature of the working medium correspond to the nominal pressure and the maximum temperature values. In such a case, it is recommended to choose a filter with higher operating parameters.

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