Abstract: The paper introduces the application of pressure regulating valve in Lamphun hydropower station. The safety and reliability of pressure regulating valve are tested on site. Its application has proved that the pressure regulating valve could solve the excess rising pressure in hydropower station system caused by emergency shutdown. It's a proven technology to take the place of surge shaft in small and medium-size hydropower stations, worthy of popularizing.

Key words: pressure regulating valve, safe and reliable, mature technology

摘要： 介绍了调压阀在老挝南奔水电站的应用情况，并通过现场试验检验了调压阀的安全可靠性。该应用实例证明，采用调压阀可以消除因机组紧急停机引起的电站引水系统压力过度上升，是中小水电站替代调压井的成熟技术，值得推广使用。

关键词: 调压阀, 安全可靠, 成熟技术