ISO 22391-3-2009 PDF

Full title and description

Plastics piping systems for hot and cold water installations — Polyethylene of raised temperature resistance (PE-RT) — Part 3: Fittings. This part specifies the characteristics, test parameters and test methods for fittings intended to be used with PE‑RT (Type I and Type II) piping systems for domestic and heating water installations.

Abstract

ISO 22391-3:2009 defines performance and design requirements for mechanical, socket-fusion, electrofusion and insert-type fittings used with PE‑RT pipes for hot and cold water installations in buildings. It covers applicable service classes, design pressures, pipe dimension classes and the relevant tests required to demonstrate fitness for purpose when used with other parts of the ISO 22391 series.

General information

• Status: Published.
• Publication date: December 2009.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 93.025; 23.040.45; 91.140.60.
• Edition / version: Edition 2 (2009).
• Number of pages: 14.

Scope

Applies to fittings for piping systems made of PE‑RT (Types I and II) intended for conveying hot and cold water within buildings (domestic and heating systems). The standard addresses a range of service conditions (classes of application), design pressures and pipe dimension classes, and specifies test parameters and methods for verifying fitting performance and compatibility with pipes conforming to ISO 22391-2 and joints in accordance with ISO 22391-5.

Key topics and requirements

• Definition of applicable fitting types: mechanical, socket-fusion, electrofusion and fittings with incorporated inserts.
• Service classes, design temperatures and pressures matched to ISO 22391-1 system classes.
• Dimensional compatibility requirements with pipes (ISO 22391-2) and jointing methods (ISO 22391-5).
• Specified test parameters and methods to assess mechanical performance, pressure resistance and long-term behaviour.
• Requirements for marking, documentation and verification to support system fitness for purpose.

Typical use and users

Used by manufacturers and designers of plastic piping systems, test laboratories, certification bodies, specifiers, plumbing and heating engineers, and regulatory authorities involved in building services and potable/heating water installations. Typical applications include domestic cold/hot water distribution and building heating circuits where PE‑RT piping systems are specified.

Related standards

Part of the ISO 22391 series for PE‑RT piping systems. Closely related parts include ISO 22391-1 (General), ISO 22391-2 (Pipes) and ISO 22391-5 (Fitness for purpose of the system). Amendments to ISO 22391-3 were published (Amd 1:2020; Amd 2:2021) and other parts of the series have corresponding amendments.

Keywords

PE-RT, polyethylene of raised temperature resistance, fittings, piping systems, hot and cold water, socket fusion, electrofusion, mechanical fittings, test methods, fitness for purpose.

FAQ

Q: What is this standard?

A: ISO 22391-3:2009 is the Part 3 standard in the ISO 22391 series that specifies requirements for fittings used with PE‑RT piping systems for hot and cold water installations in buildings.

Q: What does it cover?

A: It covers the characteristics, applicable fitting types, service classes, design pressures and dimensions, together with test parameters and methods to demonstrate performance and compatibility with ISO 22391 pipes and joints.

Q: Who typically uses it?

A: Manufacturers, system designers, testing/inspection bodies, certification organizations, plumbing and heating engineers, and building regulators/specifiers.

Q: Is it current or superseded?

A: The 2009 edition (Edition 2) is the published edition; the document record shows it has been maintained with subsequent amendments (2020, 2021). As with all ISO standards, users should verify the current status with their national standards body before application.

Q: Is it part of a series?

A: Yes — ISO 22391 is a multi-part system standard covering PE‑RT piping: Part 1 (General), Part 2 (Pipes), Part 3 (Fittings) and Part 5 (Fitness for purpose of the system).

Q: What are the key keywords?

A: PE‑RT, fittings, piping systems, hot water, cold water, electrofusion, socket fusion, mechanical fittings, test methods, fitness for purpose.