9
Shut-off valve with lever reset (SSV 8600)
This device consists of a valve body 1, a pressure
switch used to compare the pressure 2, a control
lever 3 and a stem-valve plug assembly 4� The
shut-off valve is triggered when the pressure value
to be checked in the control chamber 5 increases
or decreases beyond the established values, mov-
ing from its balancing position the diaphragm as-
sembly 6; as a consequence the control lever 3
triggers, releasing the stem-valve plug assembly 4�
By effect of the force of the spring 7, the assembly
4 comes immediately into contact with the valve 8
cutting automatically the flow of the gas�
SSV 8600 (for RB 4000 models with integrated SSV 8600)
Item Description
1 Valve body
2 Pressure switch
3 Levers system
4 Stem-valve disc assembly
5 Motorisation chamber
6 Diaphragm assembly
7 Valve seat spring
8 Valve seat
9 Screwing ring
10 Screwing ring
11 Resetting lever
12 Body outlet
13 By-pass
shown body is for single SSV, for integrated SSV
in one body with the regulator all described items
are identical
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