AFRISO Flow-Control Series Operating Instructions Manual page 34

5 Mounting
Install the product upstream of the burner.
The product may be installed above or below the maximum tank level.
5.1 Determining the cross section of the suction line
When dual-pipe systems are converted to single-pipe operation, the flow rate
of the fuel in the suction line is reduced.
 Verify that the cross section of the suction line complies with DIN 4755-2
(flow rate 0.2 to 0.5 m/s) in order to help avoid air cushions in higher pipe
sections and pipes with gradients (shutdowns due to error conditions).
Consider the specifications and instructions of the system manufacturer.
5.2 Determining the suction line length
With the maximum possible suction line length, the maximum suction vac-
uum must not exceed -0.4 bar.
5.2.1 Maximum suction line length in the case of rising line
Mounting
A
1. Remove all check valves
at the tank and in the area
of a self-securing suction
line (A).
Flow-Control
EN
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