标准摘要
[中文适用范围]： 本文件仅适用于手动阀门。 本文件规定了测定农业灌溉阀门在水流经稳态条件下压力损失的试验方法。 所提出的阀门性能规范的范围和准确性将有助于农业灌溉系统设计者比较各种类型阀门的压力损失。 压力损失的测量提供了一种确定压力损失和通过阀门的流量之间关系的方法。 本文件还描述了报告相关测试数据的方法。 没有尝试定义产品用途、设计或应用。 该试验方法适用于入口和出口公称尺寸相等的阀门。 [外文原描述]： This document applies to manually-activated valves only. This document specifies a test method for determining the pressure loss in agricultural irrigation valves under steady-state conditions when water flows through them. The scope and accuracy of the valve performance specifications presented will assist agricultural irrigation system designers in comparing pressure losses through various types of valves. The measurement of pressure losses provides a means for determining the relationship between pressure loss and flow rate through the valve. This document also describes the method of reporting pertinent test data. No attempt is made to define product use, design or applications. The test method is suitable for valves with equal inlet and outlet nominal sizes.
英文名称Agricultural irrigation equipment — Pressure losses in irrigation valves — Test method