Application of static hydraulic balancing valves and self-operated differential pressure control valves to heating system
Li Baoju, Yang Hong, Hao Hongtao and Li Xiaopeng
The main design basis of heating system inlet is JGJ 173-2009 Technical specification for heat metering of district heating system, local standards and related standard atlas. Compares the technical specification, local standards and related atlas, and finds that there exist some questions about inconsistent expression and coexistent practice of static hydraulic balancing valves and self-operated differential pressure control valves, which makes designers confused. Based on the requirements of JGJ 173-2009 Technical specification for heat metering of district heating system, analyses the problems in design, installation and commissioning of static hydraulic balancing valves and self-balanced differential pressure control valves, and proposes the solutions.