ISO 10522:2021 PDF

Scope: This document specifies construction and performance requirements and test methods for direct- acting pressure-regulating valves (hereinafter "pressure regulators") intended for operation in irrigation systems, with water at temperatures not exceeding 60 °C, which can contain fertilizers and chemicals of types and in concentrations commonly used in agricultural irrigation. This document applies to pressure regulators in nominal sizes up to and including 100 mm (4 in).

ISO 10522:2021 Referenced Document

ISO 7-1 Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances and designation TECHNICAL CORRIGENDUM 1
ISO 7005-1 Pipe flanges - Part 1: Steel flanges for industrial and general service piping systems
ISO 7005-2 Metallic flanges; part 2: cast iron flanges
ISO 9644 Agricultural irrigation equipment - Pressure losses in irrigation valves - Test method

2021 ISO 10522:2021 Agricultural irrigation equipment - Direct-acting pressure-regulating valves
1993 ISO 10522:1993 Agricultural irrigation equipment; direct-acting pressure-regulating valves