
3. SERVICE RING
When the process of flushing filter is completed, set
the number on service ring to the current month as a
reminder by mea ns of rotating the service ring on top.
3.1. Applied on model KF-B 3/4”, KF-B 1”, KF-BP 1”
3.2. Applied on models KF-B 1 1/4”, KF-BPT 1 1/4”
4. PRESSURE REDUCING VALVE
The pressure reducing valve installed on P-series pro-
ducts can effectively prevent the damage to water
equipments caused by high pressure or water hammer.
The pressure reducing valve is factory set to 4 bar and
can be adjusted in a range from 1 to 6 bar, follow the
instructions below to adjust the outlet pressure.
1. Use flathead screwdriver to unfasten the locking
screw.
2. To in crease the pressure: turn the adjustment knob
in the direction of the plus symbol (+) and observe the
outlet pressure gauge. (Outlet pressure is always lower
than inlet pressure)
3. To reduce the pressure: turn the adjustment knob in
the direction of the minus symbol (-).
4. When the desired outlet pressure is reached, tighten
the locking screw again.
Note: ensure the water equipment are all closed
befare you start to adjust the pressure reducing
valve, in the process of adjusting outlet pressu-
re, drainage ball valve need to be open&close man y
times, observe the oulet pressure gauge when the ball
valve is closed.
5. INSTALLATION
Close the inlet valve, release the pressure in pipes.
- lnstall the pre-filter as the figure indicated above.
- When installing, make sure to observe the correct di-
rection of flow. An arrow on the brass head indicates
the direction of flow.
- lnstall the filter with main axis in vertical position.
- Pre-filter must be installed by a qualified person.
Check to ensure the accessories are complete befare
installation.
- Special welding machine is required if the PPR pipe
line are used for plumbing, ensure the pipes are welding
securely.
- Extra pipe lines are required if metal pipe line are used
far plumbing, please fallow the local plumbing codes.
- Do not install the pre-filter outdoors, which are exposed
to UV radiation(sunlight), heat, oil or various chemicals.
- Use enough thread tape and make sure it is winding
evenly.
- Make sure the other parts are not rotating when you
tighten the thread nut.
- After the plumbing work is done, check it thoroughly
to make sure if there is any leakage.