Piusi Cube 70/33 - Mechanical Installation; Hydraulic Connections; Suction Hose Length and Diameter

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Installation, use and maintenance
M0097D rev.00 ENIT
. Mechanical installation
. Hydraulic connections
Before installation, verify that no packing material has been trapped in the tubing.
Prepare suitable stilts or fixing brackets depending on the fixing position of CUBE. The hose
coming from the tank must be aligned to the threaded inlet of the pump filter which is located
under CUBE.
Maximum length
of suction hose
The maximum length of the tubing, the diameter of the tubing, the
difference in height, are parameters that are tightly linked to creating
suction conditions. The laer must not be such as to create backpressure
greater than . bar. It follows as a consequence that, aer respecting
the minimum diameter of the tubing specified in the "Aention" box
below, the length of the tubing decreases as the difference in height that
the diesel fuel must overcome increases and vice versa: in fact, the back
pressure progressively increases by . bar for every meter increase in
the static height of the pump with respect to the level of the diesel fuel in
the tank.
¦ Suction tubing must resist a pressure of at least 10 bar and must be of a diameter NOT LOWER than '';
¦ tubing must be suitable to functioning under backpressure;
¦ use tubing and accessories suitable for use with diesel fuel. Materials that are not suitable
for use with diesel fuel can cause damage to the pump, harm people and cause pollution;
¦ any curves in the suction hoses must be of the widest radius possible to limit the loss of head;
¦ make sure that the suction tubing is clean and free of scum.
ATTENTION