Devices to prevent pollution by backflow of potable water - Automatic diverter - Family H, type C
This document specifies:
a) field of application;
b) requirements for automatic diverters;
c) dimensional and the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of automatic diverters;
d) test method and requirements for verifying these properties. For sanitary tapware (see Clause 2) with integrated devices, the automatic diverter is only considered to be a backflow protection device if it has passed the requirements of this document and additionally those of the applicable product standard for the draw off tap or mixing valve;
e) marking and presentation;
This document specifies the characteristics of automatic diverters suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C. They are intended only for installation with no downstream closing device.
This document is applicable to the product type indicated as follows:
i) integrated in spout (outlet);
ii) integrated in the mixing body;
iii) non-integrated (part of a set) above the maximum water level.
This document is not applicable to the product type non-integrated below the maximum water level.