GB/T 18691.5-2021
Agricultural irrigation equipment—Irrigation valves—Part 5: Control valves (English Version)

Standard No.

GB/T 18691.5-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 18691.5-2021

Replace

GB/T 18691.5-2011

Scope

This document specifies the design requirements, performance requirements, conformity assessment, marking and packaging of control valves. The control valve is suitable for irrigation systems where the water temperature does not exceed 60°C and the water may contain certain types and concentrations of fertilizers or chemicals commonly used in agriculture. This document is applicable to hydraulically driven irrigation control valves whose nominal size is not less than DN15. The control valve is designed to work in any position from fully open to fully closed. Valves can be directly operated (e.g. opening and closing via a spring or diaphragm) or pilot operated (e.g. via a diaphragm via an adjustable pilot valve). The valve can also be used as a check valve.

GB/T 18691.5-2021 Referenced Document

• GB/T 18691.1-2021 Agricultural irrigation equipment—Irrigation valves—Part 1：General requirements
• GB/T 18691.2-2021 Agricultural irrigation equipment—Irrigation valves—Part 2: Isolating valves
• ISO 9644 Agricultural irrigation equipment - Pressure losses in irrigation valves - Test method

GB/T 18691.5-2021 history

• 2021 GB/T 18691.5-2021 Agricultural irrigation equipment—Irrigation valves—Part 5: Control valves
• 2011 GB/T 18691.5-2011 Agricultural irrigation equipment.Irrigation valves.Part 5:Control valves
• 2005 GB/T 19793-2005 Agricultural irrigation equipment.Hydraulically operated irrigation valves

GB/T 18691.5-2021 -All Parts