Design; Advantages And Equipment - GOK FL 90-4 Montage- Und Bedienungsanleitung

DESIGN

Type FL 90-4
Inlet connection
Outlet connection
Safety overpressure shut-off valve
(OPSO)
Low pressure regulator with integrated
pressure relief valve PRV

ADVANTAGES AND EQUIPMENT

Safety overpressure shut-off valve OPSO
The OPSO - (Over-Pressure Shut Off) is an automatic safety device that protects connected
devices against excessive high pressure. The outlet pressure is monitored constantly. If the
outlet pressure is exceeded, the OPSO responds and the gas feed is interrupted. The visual
display switches from GREEN to RED.
When it has responded, the OPSO must be opened manually. If the OPSO responds, the
gas feed can be restarted again by following the steps in "Restarting the safety overpressure
shut-off valve OPSO / UPSO". If an OPSO is installed, the pressure regulator is also marked
"OPSO" on the type label.
Test connector option
16 / 36
Low pressure regulator Type FL 90-4, Type FL 91-4
A leak tester can be connected to the test connector
for pressure and leak tests on the outlet side.
First, loosen the set screw in the test connector.
When you have used it, tighten the set screw again
and check for leaks again. See LEAK CHECK.
Type FL 91-4
Breather, insect protection device
Test connector (not shown in picture)
Regulator support or attachment to the
support rail
Protection cap/Visual indicator for OPSO
Push button
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