Laying Connections; Assembling The Tank Dome And Drinking Water Telescopic Dome Shaft; Assembling The Tank Dome - Graf Carat XL Notice D'installation

5.4

Laying connections

All connections should be fitted to the flat surfaces
below the tank dome to ensure that the maximum
water level in the tank is below the tank/tank dome
connection.
The required holes can be produced with a circular
cutter or hole saw. When doing this, please note
that the maximum hole size is DN 110 (bottom of
end face) or 160 DN (top of end face and at tank
dome).
All inlet and overflow pipes must be laid with an
incline of at least 1% in the direction of flow (remember that subsequent settling may occur). All intake,
pressure and control lines must be routed in an empty pipe, which must be laid at an angle to the tank, as
straight as possible without any sagging. Any bends that are needed should be produced using 30°
adapters.
Important: The empty pipe must be connected to an opening above the max. water level.
Please note: In order to fit the connections, please always use materials which are suitable for drinking
water (PE screw connections, special seals, connection pipes and connection fittings).
6.

Assembling the tank dome and drinking water telescopic dome shaft

6.1

Assembling the tank dome

Prior to assembly, the enclosed seal is locked onto
the tank neck's profile „B". The tank dome is then
locked to the tank neck. It is essential to make sure
that the upper seal "A" (pre-assembled) is correctly
installed.
A
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5. Installation and assembly
B
maximum
water level
A
B
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