ISO 9635-4:2006
Agricultural irrigation equipment - Irrigation valves - Part 4: Air valves

Standard No.

ISO 9635-4:2006

Release Date

2006

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 9635-4:2014

Latest

ISO 9635-4:2014

Scope

This part of ISO 9635 specifies construction and performance requirements and test methods for air valves, intended for operation in irrigation systems with water at temperatures not exceeding 60 °C, which can contain fertilizers and other chemicals of the types and concentrations used in agriculture. It is applicable to hydraulically operated air irrigation valves of DN 15 (1/2 inch) diameter or greater, designed to be directly operated, i.e. the force is applied to the obturator by the float, either directly or via a mechanical linkage. The valves can be operated by a force applied through an adjustable pilot valve.

ISO 9635-4:2006 Referenced Document

• ISO 9635-1:2006 Agricultural irrigation equipment - Irrigation valves - Part 1: General requirements
• ISO 9635-2:2006 Agricultural irrigation equipment - Irrigation valves - Part 2: Isolating valves

ISO 9635-4:2006 history

• 2014 ISO 9635-4:2014 Agricultural irrigation equipment - Irrigation valves - Part 4: Air valves
• 2006 ISO 9635-4:2006 Agricultural irrigation equipment - Irrigation valves - Part 4: Air valves