Powers Watts Industries 300 Serie Instructions D'installation

The series 300 flush valves are shipped partially assembled, see figure 1. Refer to figure 2 for item
numbers. Angle stop (item 4) is preset to the fully opened position. Timing screw (item 11) is preset
for minimum flush time. To ensure correct installation, we suggest the following.
Remove angle stop (item 4) from valve body by
unscrewing the clamping nut (item 7) and sliding
angle stop off tailpiece.
I n l e t c o n n e c t i o n c a n b e m a d e b y u s i n g s o l d e r
adaptor (item 1) or IPS threaded pipe.
Slide sleeve (item 2) and escutcheon (item 3) over
the inlet supply pipe. Thread the angle stop onto the
inlet supply connection. Protect hex area of angle
stop while tightening to avoid damage to the chrome
plated surface. Once angle stop is tight and inline,
reinstall flush valve body assembly onto the angle
stop. Do not tighten clamping nut at this point.
Adjust position of flush valve body so that the outlet
is directly over the spud connection. Centre of stop
to centre of flush valve is adjustable from 4 1/2" to 5
1/2" (114mm to 140mm). Tighten the clamping nut
(item 7) to sercure flush valve in place.
Install vacuum breaker (item 13), flush pipe (item 14),
and cowl nut (item 15) on the outlet of the valve, see
figure 3. Only hand tightening is required. Connect
the other end of the tube to the fixture spud.
piping. With the angle stop in the closed position, unscrew
bonnet (item 10) and remove piston assembly (item 9), replace
cover. Open angle stop and flush piping. Once flushing of
Figure 3
www.wattscanada.ca Ph 888-208-8927 Fax 888-479-2887 Revision A 08/27/05
supply system is complete close angle stop and replace piston
assembly. Do not use pipe compound or dope on cover
threads.
The flush cycle is adjustable by the timing screw (item 11) in
the flush valve cover. Remove cover cap (item 12) on top of
the flush valve cover, turn the timing screw clockwise to
shorten flush cycle or counterclockwise to lengthen.
Ideal operating pressure should be in the range of 30 to 60 PSI
(207 to 414 kPA). Rated pressure is 20 to 100 PSI (138 to 689
kPA). At pressures above 75 PSI (517 kPA) the use of a
pressure reducing valve in the supply line is recommended.
The use of air chambers and/or water hammer arrestors as
close as possible to fixture is also recommended.
Series 300 Flush Valve
Installation Instructions
Figure 1
2
3
4
5
6
7
1
12
11
10
9
8
13
14
15
Figure 2
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