How to choose self-operated differential pressure valve?

The design and selection of differential pressure control valve can be based on the following points:

1. Calculate the water flow through the valve. According to the data provided by the sample, and referring to the interface size of the equipment, check whether the flow of the valve of this specification meets the requirements.

2, choose the appropriate pressure range. Calculate the resistance of the water system and obtain the differential pressure that the valve needs to absorb to determine the differential pressure range of the valve.

3, according to the calculated flow, differential pressure range and technical requirements to determine the appropriate valve series, model. The pressure drop of the flow control valve is equal to the minimum pressure drop in its operating differential pressure range.

PS: pump head = pressure drop of dynamic flow balancing valve + other pressure drop of system.