Ssv 8600: Description, Resetting - ITRON RB 4000 Instruction Manual

SSV 8600 (FOR RB 4000 MODELS WITH INTEGRATED SSV 8600)
Shut-off valve with screw reset
The device consists of a valve body 1, a control unit 2 used to
compare the pressure, a lever system 3 and a stem-valve disc
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 preset values, thus moving from its
balancing position.
5
6
Shown body is for single SSV, for integrated SSV in one body
with the regulator all described items are identical.
2
3
9
10
In this action the diaphragm assembly 6 triggers the lever system
3 by releasing the stem-valve disc assembly 4. By effect of the
force of the closing spring 7, the assembly 4 comes immediately
into contact with the orifice 8 interrupts automatically the flow of
gas.
13
4
1
Item Description
1
Valve body
2 Control unit
3 Lever system
4 Stem-valve disc assembly
5 control chamber
6 Diaphragm assembly
7 Closing spring
8 Valve seat / Orifice
9
Screwing ring OPSO
10 Screwing ring UPSO
11 Resetting lever
12 Outlet chamber
13 By-pass
11
7
8
12
7