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.
It is essential that all pipe work is flushed through to remove debris and swarf that could
otherwise damage the fitting. Once the pipe work has been flushed through, turn off the water
supply at the stop valve.
Important:
Important:
Important:
Important: Independent stop valves complying with the current water regulations should be
fitted as a means of isolating both water supplies to the fitting for servicing and/or
maintenance work.
05
General Specifications
General Specifications
General Specifications
General Specifications
Operating pressure range (bar)
Min
Max
1.0
8.0
Maximum static pressure – 10.0 bar
NOTE:
NOTE:
NOTE:
NOTE:---- Nominally equal (balanced) inlet supply pressures are recommended for optimum
Performance of mixer taps.
BS 6700 recommends the temperature of stored water should never exceed 65°C. A stored water
temperature of 60°C is considered sufficient to meet all nominal requirements and will minimise
the build up of lime scale in hard water areas.
