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WATER GAUGE & GAUGE GLASS INSTALLATION GUIDE
20100, 20200, 20300, 20400, 20600, 20700, 20800, 21100, 21200, 22000, 22100, 22200, 23400,
23600, 24300, 24400, 24600, 24700, 24800, 25200, 25400, 25500, 25600, 20LF SERIES
Only properly trained personnel should install and
maintain water gauge glass and connections.
Remember to wear safety gloves and glasses
during installation. Before installing, make sure
all parts are free of chips and debris.
1. Apply thread sealant or tape to pipe threads.
Install top gauge fitting (fitting without a drain
valve) into the uppermost tapping. Wrench
tighten the fitting until it is snug and the glass
outlet is pointing at five o'clock (about 1/8
turn from its final downward vertical position).
2. Install the bottom gauge fitting (the fitting with
a drain valve) until it is snug and the glass
outlet is pointing directly upward.
3. Remove glass packing nut, friction washer (or
packing gland, depending on the model),and
glass packing from each gauge fitting. Slide
the packing nut, then friction washer or packing
gland, then and glass packing onto each end of
glass.
4. Gently insert one end of the glass into the top
gauge fitting. Keeping the glass inside the top
fitting, gently rotate the top gauge fitting
clockwise until vertically aligned with the
bottom gauge fitting, then insert glass into
bottom fitting until glass bottoms out on the
shoulder inside the bottom fitting.
5. Carefully raise glass about 1/16" and slide
lower glass packing down until the glass
packing contacts the lower gauge fitting. DO
NOT allow the glass to remain in contact with
any metal!
6. Carefully slide upper glass packing up as far as
possible.
7. Hand tighten both glass packing nuts, then
tighten 1/2 turn more by wrench. Tighten only
enough to prevent leakage. DO NOT OVER
TIGHTEN! If any leakage should occur,
tighten slightly, a quarter turn at a time,
checking for leakage after each turn.
GUARD
ROD
PACKING
GLAND
(OR
FRICTION
WASHER)
BOTTOM
GAUGE
FITTING
NOTE: NOT ALL WATER GAUGES ARE
EQUIPPED WITH BALL CHECK VALVES
WARNING!
VALVE MUST BE USED IN THE FULLY
OPEN POSITION FOR PROPER
OPERATION OF BALL CHECK. FAILURE
TO DO SO COULD RESULT IN BODILY
INJURY AND/OR PROPERTY DAMAGE.
This product contains chemicals known to the State of California to
cause cancer and birth defects or other reproductive harm. (California
law requires that this warning be given to the consumers in the State
of California).
U.S. SAFE DRINKING WATER ACT WARNING:
It is illegal to use products that contain lead for potable water services
(Water intended for human consumption) in the United States.
TOP GAUGE FITTING
BALL
CHECK
VALVE
VESSEL
WALL
WASHER
GLASS
PACKING
GAUGE
GLASS
GLASS
PACKING
NUT
ASME
AUTOMATIC
BALL
CHECK
VALVE
DRAIN
VALVE
I-5334-00 REV. H
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