实施阀门管理计划以减少系统中不工作阀门的数量，直接影响水系统的可靠性和主要收入来源客户的满意度。供水系统的可靠性是通过其提供令人满意的服务水平来衡量的。可靠性是指了解系统是否正常工作，以及在适当压力下持续输送可接受数量和质量的水的能力，同时将中断和中断、水质影响、阀门、消防栓和主破裂降至最低。在拉斯维加斯山谷水区（LVVWD），成功的衡量是基于计划外中断的零比率，只接受最小的计划中断。本文讨论了LVVWD已运行12年的预防性维护阀门操作程序。 包括表格，数字。

Implementing a valve management program to reduce the number of non-working valves in the system has a direct effect on the reliability of a water system and the satisfaction level of the main source of revenue, the customer. The reliability of a water distribution system is measured by its ability to deliver a satisfactory level of service. Reliability is knowing the system is working correctly, and the ability to consistently deliver an acceptable quantity and quality of water at a suitable pressure with minimum interruptions and outages, water quality impacts, inoperable valves, hydrants, and main breaks. At the Las Vegas Valley Water District (LVVWD), the measurement of success is based on a zero rate of unscheduled interruptions with acceptance of only minimal scheduled interruptions. This paper discusses the Preventive Maintenance Valve Operating Program that has been in operation at LVVWD for 12 years. Includes table, figures.