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The information contained in this document is subject to change without notice. BERMAD shall not be liable for any errors contained herein.
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IOM
Model: FP
-
730
-
UF
Sizes: 2"-
12
"
PI7PE09-730-UF
9. Monthly Inspection and Test
9.1
Complete Weekly Inspection.
9.2
During the monthly fire pump flow test, it shall be verified that the pressure relief valve is correctly adjusted and
set to relieve at the appropriate pressure and closes below the pressure setting
10. Abnormal Conditions - Troubleshooting
SYMPTOM PROBABLE
CAUSE
REMEDY
Filter screen (4) blocked.
Remove filter cap and
screen to clean. Filter might
be insufficient. See Note
below.
Pulsates or hunts.
Slowly adjust needle
valve (21) until pulsation
stops.
Needle valve (21) not
properly adjusted.
Factory set at ½ or 1½
open. Adjust.
Valve fails to regulate
Air trapped in main valve
cover.
Loosen cover tube fitting
at the highest point, allow
the air to escape and re-
tighten.
Insufficient inlet pressure. Check/create
inlet
pressure.
Valve fails to open
Pilot is adjusted to high.
Turn adjusting screw
CCW on
pilot (5).
Filter screen (4) blocked.
Remove filter cap and
screen to clean. Filter might
be insufficient. See Note
below.
Debris trapped in main
valve.
Remove and inspect
actuator assembly.
Check seat and disc seal.
Check for foreign bodies.
Rinse at high flow-rate.
Diaphragm in main valve
is leaking.
Valve fails to seal inlet
pressure
Diaphragm in pilot valve
is leaking.
Open the valve cover,
inspect diaphragm.
If damaged, replace.
Note:
Mark “F” – Large Filter
In cases where the filter screen frequently becomes blocked, install a filter with filtration capacity of at least 80 mesh,
250 μm.
We recommend replacing the standard filter with BERMAD’s Large Filter Mark “F”.
