KING 7910 Series - Manual (Page 2)

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7910 Series
Installation Instructions
caution
• O-rings should be replaced if meter is disassembled after it has been
in service
• Serious property damage and great personal injury could occur as
the result of a meter misused or used in an unsuitable application.
cleaning
Carefully remove the flowmeter from piping system. Remove the
shield cover screws from the back cover. Remove the back shield cover
and shield. Remove the end fitting retainer screws from the top end
fitting. Remove the top end fitting and end fitting retainer. Carefully
remove the glass meter tube from the top of the case. Pulling glass
tube at an extreme angle, or by excessive force will cause tube to
break. Do not allow float to fall out. Float damage may result in inac-
curacy. All necessary instrument components are now fully accessible
for cleaning with a bottle brush and appropriate mild soap solution*.
Before the meter is reassembled, inspect all parts for damage. O-rings
should be replaced during meter maintenance and cleaning.
*Do not use cleaning agents that will damage float, tube or o-rings.
To reassemble, carefully install the meter back into the case from the
top. Reinstall the top end fitting and end fitting retainer and tighten
end fitting retainer screws. Reinstall back shield and back shield cover
and tighten the shield cover screws. Reinstall flowmeter into piping
system.
Meters should be cleaned with a mild soap solution. This will be an
effective cleaner of rust stains. Caution must be used so that materials
of construction are not damaged by cleaning solutions. Hard water
deposIts can be removed with 5% acetic acid solution (vinegar).
repair
7910 meters that require repair should be sent to the factory. Please
call for a Return Merchandise Authorization (RMA) number and return
instructions.
warning:
Pressure and temperature ratings are based on a study of the engi-
neering data for particular materials used in construction and on the
design of individual models. This information is supplemented by
destructive test results. Meters with stainless enclosures must never be
operated without shields securely in place. Meters exposed to difficult
environments such as those created by certain chemicals, excessive
vibration or other stress inducing factors could fail at or below the
suggested maximums. Never operate meters above pressure and
temperature maximums. It is strongly recommended that all meter
installations utilize an appropriate pressure relief valve and/or rupture
disc. The pressure settings and locations of these devices should be
such that meters cannot be over pressurized. Meter failure could
result in damage to equipment and serious personal injury. Always
use suitable safety gear, including OSHA approved eye protection
when working around meters in service. We are happy to pass along
chemical compatibility information that has been published by the
manufacturer’s of raw materials used in our products; however, this
information should not be construed as a recommendation made by
King Instrument Company, Inc. for a specific application.
Maximum Non-Shock Pressure and Temperature
Fitting Temperature Pressure
PVC 115°F
150 psig (31W-89W)
125 psig
(94W-99W)
316LSS 200°F
300 psig (31W-46W)
250 psig (51W-613W)
150 psig (84W-89W)
125 psig (94W-99W)
Ambient Temp. 33° F -125° F