目的:提供一个标准实践，涵盖饮用水服务管线系统中使用的大多数重要阀门和配件，包括埋地和非埋地阀门、配件、仪表设置器和服务鞍夹。MSS SP-116-2019涵盖尺寸为NPS 1/2至NPS 2的阀门和配件，用于干管和流量计之间的饮用水系统服务管线。包括:a）设计为与土壤直接接触的埋地阀门和配件（公司阀门、服务鞍形夹和路缘阀）。b） 非- 设计用于安装在外壳内的埋地阀门和配件，如仪表箱或建筑结构（仪表阀门、止回阀、仪表配件和仪表设置器）。c） 配件包括各种类型的联轴器和适配器。不包括:a）减压防回流阀。本标准实施规程规定了饮用水供水管线阀门或配件在制造时必须具备的最低要求。除本标准所述内容外，设计和制造细节，包括确保每个阀门或配件具有这些能力的设计和生产试验，仍由制造商负责。

Purpose: To provide a Standard Practice covering most of the significant valves and fittings used in drinking water service-line systems including both buried and non-buried valves, fittings, meter setters, and service saddle clamps.MSS SP-116-2019 covers valves and fittings in sizes NPS 1/2 through NPS 2, for use in drinking water system service-lines between the main and the meter. Included are:a) Buried valves and fittings that are designed to be in direct contact with the soil (corporation valves, service saddle clamps, and curb valves).b) Non-buried valves and fittings that are designed for installation within an enclosure such as a meter box or building structure (meter valves, check valves, meter fittings, and meter setters).c) Fittings include various types of couplings and adapters.Not Included:a) Reduced pressure backflow preventers.This Standard Practice establishes the minimum requirements that a drinking water service-line valve or fitting must possess at the time of manufacture. Details of design and manufacture, other than those stated in this standard, including such design and production tests to ensure that each valve or fitting will have these capabilities, remain the responsibility of the manufacturer.