Brass valves and fittings

Brass: Standards, safety, and solutions for drinking water networks

Brass, an alloy of copper and zinc, is defined by its chemical composition (such as CW614N or CW602N) and compliance with European standards (indicated by the letter N).

Low-lead brass (L) and dezincification-resistant brass (DW) are specifically designed for drinking water systems, meeting strict sanitary requirements, including the lead migration limit set at 5 µg/L by 2036.

Hylands recommends lead-free brass (such as CW511L and CW510L) and DZR brass (such as CW602N or CW625N-DW) to prevent corrosion and maintain water quality. These materials ensure increased durability and reduce maintenance costs.

Threading, whether metric (Petit Bossage and Grand Bossage) or imperial (Gas Thread), follows precise standards to ensure tightness and compatibility of installations.

Standards and compliance

Valve : Design, performance, and testing according to EN 13828

Compression fitting: Design, performance, and testing according
to EN 1254-3

Brass CW617N, CW625N according to EN 12165

Sealing gasket EN 681-1

Manufacturers are ISO 9001 and ISO 14001certified

WRAS or ACS certification

IDENTIFICATION