8
3.Receiving and Installation
ED. 2010/11
3.8.
INSPECTING AND CHECKING
Check the following before use:
Check that the clamp and the adjusting nuts
are well tightened.
If it has a handle, turn it several times to
ensure that it works. (the seat of the valve
must lift and fall)
3.9.
WELDING.
The welding work can only be carried out by people qualified, trained and equipped with the
necessary means to carry out this work.
Disassemble the valve before starting the welding work.
3.9.1.
Welding ende overflow valve . 74700
Disassemble the valve as indicated in the
Assembly and disassembly
section.
Weld the valve body to the pipes.
When welding the valve body, it is very important to maintain the minimum distance (dimension A) enabling disassembly
of the valve for later checks and replacement of internal valve parts (seals, shafts, springs). This distance is also
important when the valves are supplied with a handle.
DN
A
No
handle
With
handle
25-1”
250
325
32
260
335
40-1 ½”
275
345
50-2”
300
360
65-2 ½”
355
425
80-3”
380
445
