How is the backforce of a safety valve in a liquid-phase pipeline calculated?
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There is already a lot of information available on the backforce of safety valves in gas pipelines. But how is the reaction force of the safety valve on the liquid-phase pipeline calculated?
Additionally, is there any difference in the reaction force between the open and closed types of safety valves in liquid-phase pipelines?
Usually, foreign manufacturers provide the calculation results for the backforce of safety valves; domestic manufacturers may also carry out such calculations, though those with particularly poor capabilities might not do so, and the reliability of the safety valves they supply could be called into question. Open and closed types differ only due to the medium used (open type is generally used for steam), and this may have no impact on the calculation of reaction forces. For reference.