Valves for water supply. Fitness for purpose requirements and appropriate verification tests - Isolating valves1 Scope This European Standard defines the minimum fitness for purpose requirements for isolating valves to be used in, or connected to, water supply pipe systems, above or below ground (see EN 805), carrying water intended for human consumption. This standard specifies the design requirements, the performance requirements, and the conformity assessment method for isolating valves, whatever their type and materials. This standard applies in priority

including hot gas extrusion welding

commissioning and maintenance of fire sprinkler systems installed for use specifically in residential and domestic environments

The enhancement of internal

BS EN 50117‑9‑2 can also be used extensively in a domestic entity as the transmission of data is rapid and accurate and with less data loss

and ultimately the protection of the emergency teams who use them

A heat input not exceeding 400 kW

the response is to be carried out in accordance with BS 7984 or keyholding response services and mobile patrols should be carried out as a shared service on a contracted basis

6 Control devices

The standard covers pipe work systems

Normative Annex A on calibration

the free height of fall

Contents of BS ISO 21501-4 includes: