Standard No.:	GB/T 18693-2002
English Name:	Agricultural irrigation equipment--Float type air release valves
Chinese Name:	农业灌溉设备 浮子式进排气阀
Chinese Classification:	B91    Farming machinery and tools
Professional Classification:	GB    National Standard
ICS Classification:	65.060.35 65.060.35    Irrigation and drainage equipment 65.060.35
Issued by:	AQSIQ
Issued on:	2002-03-10
Implemented on:	2002-8-1
Status:	superseded
Superseded by:	GB/T 18691.4-2011 Agricultural irrigation equipment—Irrigation valves—Part 4:Air valves
Superseded on:	2011-10-1
Language:	English
File Format:	PDF
Word Count:	4500 words
Price(USD):	130.00
Delivery:	via email in 1~3 business day

本标准规定了浮子式进排气阀的结构、技术要求和试验方法。该阀门用于含有湿度不超过60℃的水，并且水中可能含有灌溉常用的某些类型和浓度的化学物质的灌溉系统。本标准适用于公称尺寸为15～150mm的浮子作密封件或浮子直接作用于密封件的进排气阀。本标准适用于可使用大气中的空气进入管道系统和/或可将管道中的空气排放到大气中的进排气阀。