Dimensions
Dimensions
Dimensions
Dimensions
04
Installation Requirements
Installation Requirements
Installation Requirements
Installation Requirements....
This fitting needs to be installed in accordance with the following Installation Requirements
and Notes (IRN) to ensure they meet the requirements of the Water Supply (Water Fittings)
Regulations 1999 and the Scottish Byelaws 2004. For further details contact your Local Water
Authority.
For
For
For
For backflow protection in premises or installations up to fluid category 5.
backflow protection in premises or installations up to fluid category 5.
backflow protection in premises or installations up to fluid category 5.
backflow protection in premises or installations up to fluid category 5.
The vertical distance of the outlet above the spill-over level shall be not less than 20 mm or
twice the diameter of the inlet pipe to the fitting, whichever is the greater. If the fitting cannot
be installed as indicated it shall be installed:-
a) With a backflow prevention arrangement suitable for the Fluid Category or
b) so that it draws water by gravity only from a cistern, cylinder or tank having a
permanently open vent pipe, the vertical distance between the point at which the
pipe or pipes supply water to the fittings is or are connected to the supply and the
spill-over level of any fixed appliances is not less than the dimensions stated above,
and the vent pipe or pipes supply(ies) no other fittings (other than a draining tap) at a
lower level.
