SIST EN ISO 15874-3:2013 PDF

Overview

EN ISO 15874-3:2013 - Plastics piping systems for hot and cold water installations - Polypropylene (PP) - Part 3: Fittings (CEN/ISO) defines the characteristics and test parameters for fittings used in polypropylene piping systems for domestic hot and cold water and heating systems inside buildings. It applies to fittings made from PP (including PP-RCT where noted) and to fittings of alternative materials when fitted to pipes conforming to EN ISO 15874-2 and where joints meet EN ISO 15874-5 requirements. The standard covers a range of application classes and design pressure/temperature classes defined in Part 1 and is the authoritative reference for socket fusion, electrofusion, mechanical fittings and fittings with incorporated inserts.

Key topics and requirements

• Scope and limits: Applies only within the service temperatures and pressures listed in EN ISO 15874-1 (values beyond Table 1 of Part 1 are excluded). Purchasers/specifiers must select appropriate classes while observing national regulations and installation codes.
• Material characteristics: Requirements for PP fitting materials (including PP-RCT), metallic components and influence on water intended for human consumption.
• Geometrical characteristics: Dimensions, socket lengths and tolerances for socket fusion and electrofusion fittings (extended up to 160 mm for electrofusion), and dimensions for metallic fittings.
• Mechanical and physical performance: Tests and acceptance criteria for resistance to internal pressure, mechanical behavior of fittings made from identical or differing PP compounds and for plastics other than PP. Parameters for referenced test methods are specified.
• Sealing elements and joining performance: Requirements for seals and for joint fitness-for-purpose in conjunction with EN ISO 15874-5.
• Marking and traceability: Minimum and additional marking requirements to ensure correct identification and compliance.
• Test methods referenced: ISO/EN test methods for dimensions, melt flow, pressure resistance and assembly preparation are normatively referenced.

Applications and users

• Practical applications: Design, manufacture, testing and installation of polypropylene fittings in building water supply and heating systems - including domestic potable water where allowed by national rules.
• Who uses it: Manufacturers of PP fittings, component suppliers, system designers, installers, building services engineers, conformity assessors and standards bodies. It is essential for product specification, procurement and conformity assessment within Europe and internationally where ISO/CEN standards are adopted.

Related standards

• EN/ISO 15874-1 (General), -2 (Pipes), -5 (Fitness for purpose of the system), -7 (Conformity guidance)
• Comparable series for other materials: ISO 15875 (PE-X), ISO 15876 (PB), ISO 15877 (PVC‑C), ISO 22391 (PE‑RT)

Keywords: EN ISO 15874-3:2013, polypropylene (PP) fittings, plastics piping systems, hot and cold water installations, socket fusion, electrofusion, mechanical fittings, fittings standard.