Operating Guide

www.QuARTzbyACO.com
16
Technical & planning considerations
Accumulation and slopes
ASME A112.6.3-2001 requires a 2“ outlet
for shower applications. QuARTz by ACO
channels have this as standard. The flow
value for a 2" outlet varies depending upon
the head of water above the grating.
In the case of shower channels, a head
of water is not typical in practice, due to
shallower floor grades. Floor drains can
have a head of water due to ‘basin’ profile
of floor grades.
Flow values without any accumulation (head
of water) should be used when shower
channels are placed around the perimeter
of the shower and no shower threshold step
is used.
If the shower channel is installed against
a wall, there may be a small amount of
accumulation (head of water) depending
on the layout of the shower area. Grade
of shower floor will determine depth of
build-up.
Installation against the wall.
Outlet flow rate up to 9.51 GPM based on floor
grades such that 0.2” (5 mm) head of water
possible.
Installation at the entrance
Outlet flow rate up to 6.65 GPM based on no
water accumulation (head of water).
Outflow performance
The choice of shower channel generally
depends on the flow values of the shower
fitting. 70 % of shower heads have a
maximum capacity of less than 3 GPM.
The QuARTz by ACO shower drain standard
channel has an outflow of 6.65 GPM. This
value assumes no head of water above
drain.
Based upon these flow rates the QuARTz
by ACO shower drain standard channel can
be used in conjunction with the majority of
shower head fittings.
A number of custom solutions are available
to cope with shower heads with higher flow
rates (see page 12).
GPM Outlet flow rates
Accumulation (head of water)
Grate 0“ (0mm) 0.2“ (5mm) 0.6“ (15mm)
No Grate
6.65 9.51 11.60
Tile
6.49 9.28 11.32
Quadrato
6.34 9.07 11.06
Flag
6.34 9.07 11.06
Wave
6.00 8.58 10.47
Note: Based on 900mm shower drain with standard 2” outlet