12
Product description
EN
FloCo-Top-2
4.3
Function
The burner pump draws the fuel oil from the tank via the filter and the check
valve in the housing and delivers it to the nozzle. The amount of oil exceeding
the nozzle capacity is pumped via the connection piece of the return line into
the float chamber. While the liquid level gradually increases in the float cham-
ber, the oil is de-aerated by the de-aeration valve.
When the oil reaches a level of approximately 20-30 mm above the bottom,
the operating float begins to operate and actuates the bypass valve, thus
delivering the de-aerated return oil to the suction pipe. This way, the system
only withdraws the amount of oil from the tank via the filter which is actually
needed for combustion. This increases the service life of the filter.
The major part of the volume flow to the tank consists of de-aerated fuel oil
and a small portion of fuel oil from the tank which still contains air.
4.4
Approvals, conformities, certifications
The product is TÜV-tested (report number A 133 2013 E2).
A. Q
Tank
= Q
Nozzle
B. Q
Return
C. Q
Flow
D. Q
Nozzle
Fig. 7: Switching from single to multiple filtration
A
D
B
C
