Table of Contents
Advertisement
Descaling procedure
1. Connect hoses to the back plate of the Scalebreaker
pump as previously illustrated.
2. Connect the outer ends of the flow and return hoses
securely to the plant or equipment to be descaled,
using BSP threaded adapters & PTFE tape if necessary.
3. Connect the power cable to a suitable earthed power
supply, according to model. As the pump will be used
in a damp location, we recommend that a residual
current circuit breaker be used.
4. Fill the tank using the water inlet tap, adding sufficient
descaling solution to ensure that the pump rotor
housing is submerged during use. The minimum liquid
level is shown on the tank.
Safety:
Caps should be kept securely on all chemical
containers whilst not in use. As a matter of prudence,
and to avoid splashes, operators should avoid
standing directly over the open neck of either
chemical containers or the filling neck of the descaling
pump whilst pouring or adding chemicals.
Checking progress of the descale.
The descale may be considered complete when there is
sufficient strength left in the solution and no further
reaction is taking place. This can be monitored in various
ways.
a). When removing hard water deposits, check for
bubbles within the return hose. Bubbles cease to be
created when all reaction has finished.
b). Scalebreaker chemicals have a built-in colour
change indicator which allows the strength to
monitored visually.
c). If the equipment being descaled has flow meters,
check the flow rate. The rate should increase as the
water ways are cleared.
______________________________________________________________________________
April 2022 edition
Kamco Descaling Pump Manual
C20 | C40 | C90 | C210
5. Switch on the pump, and check to ensure that the
liquid level does not fall below the minimum level
marked on tank, as some of the contents of the tank
enter the equipment being descaled, particularly
when the overall capacity of the system being
descaled is greater than the tank capacity of the
pump.
If necessary, add more descaling solution, or water.
6. Check all connections for leaks.
7. During use, the tank cap should remain loose and not
be screwed on by more than a quarter turn, to allow
for the passage and elimination of the gas evolved
during descaling.
8. Check that the foam level does not exceed the
maximum filling level. If necessary, carefully add
FOAMBREAKER to the solution.
9. The built-in flow reverser makes it possible to attack
scale from both directions. During descaling
periodically move the flow reverser handle from one
side to the other. This reduces descaling time
considerably, and is more effective in flushing out any
solid matter, which may accumulate on the
circumference of the base of the tank. By attacking
scale from each direction it is possible to clean piping
which is almost totally obstructed.
d). Use pH test equipment to check the strength of
the solution.
Check the pH value at the beginning of the process,
and continue to monitor at regular intervals.
If the pH value gradually increases towards 7
descaling / chemical cleaning is still taking place.
When the reading remains the same, either the
descaling is complete, or the solution strength has
been exhausted.
Check strength and if necessary top up the solution.
Kamco Descaling Pump Manual
20 |
P a g e
Advertisement
Table of Contents
