Aquaflush
Flush V
alves
Aquaflush
Installation Instructions
3. Remove the actuator end, coupling and mounting nut from the
actuator sleeve and insert the sleeve through the 1-1/2" hole
from the fixture side. Reinstall the mounting nut (hand tight),
coupling and actuator end to the sleeve.
3
1. Install the Zurn Control Stop to the supply line with the water
outlet positioned as needed. If using a sweat solder adaptor,
sweat the adaptor to copper tubing before installing control stop.
2. Attach vacuum breaker tube and elbows to fixture with spud
nut.
Note: When cutting scored pipe to fit, leave a minimum
of 1-1/4" of scoring to ensure proper engagement with
compression coupling.
Important:
• All plumbing is to be installed according to state and local codes
and regulations.
• Water supply lines need to allow proper water flow for each
fixture.
• Flush all lines of any
debris
before making connections.
• Do not use pipe sealant or plumbing grease on any fitting other
than the control stop inlet.
The Aquaflush valve is designed to operate under various water
pressures with a recommended range between 10 and 100 psi
(69 to 689 kPa). Each Zurn valve is tested for proper performance
at the factory before being shipped. Consult the product pages of
the catalog for available flow options.
Most low consumption valves (1.6 gallon) require a minimum of 25
psi running pressure through the valve to obtain proper evacuation.
When installing your quality Zurn valve, it is recommended that a
smooth jawed wrench be used. This will prevent gouges and
scratches on your valve.
Before starting the installation process, bore a 1-1/2" hole in
wall for actuator, and a 2" hole for piping if required.
4. Insert the adjustable tail piece into the control stop while installing
the valve.
Note: The adjustable tail piece allows for +/- 1/2" from
the standard 4-3/4" centerline to centerline rough in.
Lubricate
O-ring on adjustable tail piece with water if needed for installation.
Secure the valve by hand tightening the actuation coupling nut
and tail piece coupling nut. Position valve over flush tube and
secure with the flush tube coupling nut. After aligning the valve
securely tighten the actuator assembly, control stop and the flush
tube with a wrench.
A smooth jaw wrench is recommended to
protect special finishes.
4
5. Shut off the control stop, remove the valve cover and remove
the internal diaphragm kit. Reinstall the valve cover and open
control stop to flush lines of debris. After the lines are clear,
remove the cover and reinstall the diaphragm kit. Tighten the
cover back on and adjust flush flow using the control stop.
The stop cap screw cover should be replaced after final
adjustments have been made.
5
2
1
Control Stop
Sweat Solder Adaptor
with Copper Tubing
1-1/4" Min.
4-3/4"
± 1/2"
FV251 Page 3
