®
DUAL Page 15 of 28
Integrated Fire Protection System
OWNER'S OPERATION & MAINTENANCE MANUAL
FM-0860-0-31F
4.10 OPTIONAL SHUT-OFF VALVE AND SIGHT GLASS
The shut-off valve & sight glass option is intended to be used
for applications where testing of the system operation without
filling the sprinkler piping network is desirable and where it is
critical that all functions of the preaction system be tested
under actual discharge conditions.
Operation of the shut-off valve
Inspection of the system can be implemented without filling the
sprinkler piping system with water.
1. CLOSE the shut-off valve (D4).
2. OPEN the main drain valve (D3).
3. Simulate the operation of the system to open the deluge
valve (A1) (refer to chapter 4.8.6). Verify that water
flows through the sight glass assembly (D5).
4. Once tests are completed, make sure the main drain
valve (D3) is completely CLOSED. Reset the system
(refer to chapter 4.6).
5. FULLY OPEN the system shut-off valve (D4). Reset the
remote releasing control panel.
Figure 4.7 - Shut-off valve option
4.11 OPTIONAL SEMI-FLANGED INLET/OUTLET
When required by the user,
FIREFLEX
®
DUAL unit can be
provided in a semi-flanged configuration.
The semi flanged option provides flanged fittings only on
the water inlet pipe (left side) and on the system riser
outlet. The drain manifold is provided with a threaded
connection (left side). The rest of the fittings are the same
as usual with the main components being provided in the
standard flanged / grooved configuration.
Figure 4.8 - Semi-flange option
Vanne de drain
principal (D3)
Vanne deluge (A1) ou
de contrôle de débit (A2)
Vannes d'essais (D4)
Verre de visée (D5)
Clapet
anti-retour (D2)
Pointer lampe
de poche ici
Vanne principale
d'entrée d'eau (D1)
FM-061H-1-64A
Raccord bridé
à l'extérieur du cabinet
Raccord bridé
à l'extérieur du cabinet
Connection vers
alimentation d'eau
(spécifier le côté)
Bout fileté
Connection vers drain
ouvert (spécifier le côté)
FM-061H-1-66A
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