4.1
Function
The burner pump draws the fuel oil from the tank via the filter and the check
valve installed in the housing and delivers it to the nozzle. The excess oil (i.e.
the 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 chamber, 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 floats begin to operate and actuate 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 com-
bustion. This considerably prolongs the filter service life.
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.
A
4.2
Approvals, conformities, certifications
The product is TÜV-tested (report number S 133 2013 E2).
Product description
B
C
D
A. Q
= Q
Tank
B. Q
Return
C. Q
Flow
D. Q
Nozzle
FloCo-Top-1K
EN
Nozzle
8