ISO 9644-2008 农业灌溉设备.灌溉阀中的压力损失.试验方法

标准号：ISO 9644-2008
中文标准名称：农业灌溉设备.灌溉阀中的压力损失.试验方法
英文标准名称：Agricultural irrigation equipment - Pressure losses in irrigation valves - Test method
标准类型：B91
发布日期：2008/7/1 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：B91
国际标准分类号：65.060.35
适用范围：This International Standard specifies a test method for determining the pressure loss in agricultural irrigationvalves under steady-state conditions when water flows through them. The scope and accuracy of the valveperformance specifications presented will assist agricultural irrigation system designers in comparing pressurelosses through various types of valves.The measurement of pressure losses provides a means for determining the relationship between pressureloss and flow rate through the valve.This International Standard 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.NOTE Unless otherwise specified, the equations are expressed in the SI units recommended by ISO 1000.