3
3 - DESCRIPTION
Vertical axis pump with tank and on-off valves for cleaning and flushing
small systems or parts of big systems by circulating specific non-acid
flushing chemicals and/or acid descaling solutions.
Exclusive pump design with tank. Highly portable format, with handle and
wheels for easy transportation.
Thanks to the automatic flow reverser function (Rothenberger patent), it
attacks scale in both directions, thus making descaling more effective and
fast (as the chemical dissolving action is combined with the removal of
flakes of scale, which is aided by the two way flow), even when pipes and
exchangers are almost totally blocked.
Deposits which can be removed with the pump ROCAL PRO 2:
- scale deposits.
- calcium and silica deposits.
- iron and/or manganese oxides.
- iron bacteria and/or sulfate-reducing bacteria .
- organic substances and/or mucilages and algae.
4 - TECHNICAL FEATURES
Vertical axis pump
Motor: Hp 0,75
Power supply: 230 V - 50 Hz
Degree of protection: IP 54
Max. temperature: 50° C
Flow rate: 102 l/min.
Head: 18 m
Connections: 1” F
Tank capacity: 40 l
Dimensions (LxHxZ): 40 x 95 x 70 cm
Weight: 19 Kg
*BOILER FLUSHING
Please consult boiler manufacturer prior to flushing,regarding warranties
and suitability of use.
5 - USE
DESCALING WITH FLOW REVERSER
For descaling boilers and heat exchangers.
Fill the tank with the correct volume of
descaling chemical according to the size and
type of system, and enough water to ensure
that the liquid level is between the minimum
“MIN” and maximum “MAX” level.
TEMPERATURE OF THE DESCALING
SOLUTION MUST NEVER EXCEED 50 °C.
Connect the outer ends of the flexible
reinforced hoses to the equipment to be
descaled.
Connect the power cable to a single-phase
230 V - 50 Hz power supply.
During operation, the tank cap should remain
open to allow for the venting of the fumes
produced during descaling. Check that the
foam level does not exceed the maximum filling level.
Set the 2 three-way valves as shown in the figure below, close the clean
water inlet tap and switch on the pump.
Rotate the flow reverser lever right and left regularly to aid descaling and
make flushing more effective.
When water colour starts changing, immediately refill, as the solution is
exhausted.
Scale removal can be considered complete when bubbles no longer form
in the return pipe and the solution is still acidic.
After descaling flush the system with the product NEUTRALIZING for
removing residual acidity, once the pump has been emptied of the
product.
Important: Do not leave the descaling solution inside the tank for any
reason.
5.1 POWER FLUSHING
Pre-flushing with water
Pump is suitable for power flushing and descaling boilers*, heat
exchangers as well as radiator, underfloor and solar heating systems.
To carry out the pre-flushing with water (and then the power flushing),
operate as follows:
1) Connect the ends of the flexible hoses to the system to be flushed.
2) Connect the overflow hose to a suitable drain.
3) Connect the power supply cable to a single-phase 230 V / 50 Hz
socket.
4) Open the tank cap to visually check water level in the tank.
5) Set the valves and flow reverser as per Figure 1, open the clean water
inlet tap, open the dump and switch on the pump.
Clockwise
circulation
Counterclockwise
circulation
Overflow
Three-way
valve
Flow
reverser
lever
Dump Hose
Water
Inlet Hose
Supply &
Return Hose
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