King Instrument 7310 Operating Manual
7310 Series
Installation Instructions
Flow Meter liMited warranty
Meters are warranted against defects in materials and workmanship to the original user for a period of thirteen (13) months from the date of factory shipment, provided the meter is installed, operated and maintained
in accordance with King Instrument Company’s instructions and recommendations.
This warranty does not apply if failure is caused or contributed to by any of the following: improper handling,
improper storage, abuse, unsuitable application of the product, lack of reasonable and necessary maintenance, use exceeding suggested pressure and temperature maximums, improper packaging for return, or
repairs made or attempted to be made by anyone other than King Instrument Company, Inc.
KING INSTRUMENT COMPANY, INC. MAKES NO WARRANTY AS TO THE FITNESS OF ITS PRODUCTS FOR SPECIFIC
APPLICATIONS.
This warranty is valid for the original end-user only and does not apply to products that have been damaged
or modied. This warranty is non-transferrable and is limited to replacement or repair. The liability of King Instrument Company arising out of its supply of the products, or their use, shall not in any case exceed the cost
of correcting defects in the products as set forth above.
THIS WARRANTY IS A LIMITED WARRANTY AND SHALL BE IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. THERE ARE NO OTHER WARRANTIES WHICH EXIST BEYOND THE DESCRIPTION OR FACE
HEREOF.
IN NO EVENT SHALL KING INSTRUMENT COMPANY BE LIABLE FOR LOSS OF PROFITS, INDIRECT, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
Products should be returned, prepaid, to King Instrument Company, Inc. with proof of purchase. Call factory
for Return Merchandise Authorization (RMA) number and return instructions.
this is iMportant inForMation.
read it careFully beFore beginning work.
1) Inspect meter for damage that may have occurred during shipping.
Report any damage to the container to the freight carrier
immediately.
2) Make sure your pressure, temperature, uid and other requirements
are compatible with the meter (including o-rings.)
3) Select a suitable location for installation to prevent excess stress on
the meter which may result from:
a) Misaligned pipe.
b) The weight of related plumbing.
c) “Water Hammer” which is most likely to occur when ow is
suddenly stopped as with quick closing solenoid operated valves.
(If necessary, a surge chamber should be installed. This will also
be useful in pressure start-up situations.)
d) Thermal expansion of liquid in a stagnated or valve
isolated system.
e) Instantaneous pressurization which will stress the meter and
could result in tube failure.
note: In closed thermal transfer or cooling systems, install the meter
in the cool side of the line to minimize meter expansion and contraction and possible uid leaks at the threaded connections.
4) Handle the meter carefully during installation.
a) Use an appropriate amount of teon tape on external pipe
threads before making connections. Do not use paste or stick
type thread sealing products.
5) Install the meter vertically with the inlet port at the bottom.
6) Meters with stainless steel ttings will support several feet of pipe
as long as signicant vibration or stress resulting from misaligned
pipe are not factors.
additionally
7310 Series meters are designed for vertical installation only. (Inlet at
bottom, Outlet at top)
Max Non-Shock Pressure and Temperature
Fitting Temp Pressure
316LSS
PVC & PVDF
Ambient Temp. 33° F -125° F
200° F
130° F
200 psig (41W-103W)
150 psig (41W-72W)
125 psig (90W-103W)
When it comes to ow...we’re instrumental.
(714) 891-0008 • www.kinginstrumentco.com
1
7310 Series
Pressure and temperature ratings are based on a study of the engineering 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.
*Do not use cleaning agents that will damage float, tube or o-rings.
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).
7330 meters that require repair should be sent to the factory. Please call for a
Return Merchandise Authorization (RMA) number and return instructions.
-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.
O-Ring
Temperature
Meters are not specifically recommended for service other than
water or air. The user must determine meter suitability for use
with other fluids.
-7330 meters are not oxygen cleaned. Use with incompatible fluids may cause
o-rings to swell and break.
Carefully remove the flowmeter from piping system. Loosen and remove the
outlet union nut and remove the outlet end fitting. Withdraw the float (and guide
rod assembly where applicable) from the top. All necessary instrument
components are now fully accessible for cleaning with an appropriate mild soap
solution*. Before the meter is reassembled, inspect all parts for damage. O-rings
should be replaced during meter maintenance and cleaning.
To reassemble, carefully guide the float (and guide rod assembly where
applicable) back into the tube. Reinstall the outlet end fitting and outlet union nut
and tighten the union nut. Reinstall the instrument into the plumbing system after
removing the old teflon tape (with a wire brush) and replacing with fresh teflon
tape.
EPR
225 °F
Buna-N
Viton
Kalrez
275 °F
350 °F
400 °F
150 psig (41W-72W)
150 psig (41W-72W)
33° F - 125° F
O-Ring
Material
Maximum
Temperature
130°F
200°F
130°F
200°F
125 psig (90W-103W)
125 psig (90W-103W)
Installation InstructionsInstallation 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 owmeter from piping system. Remove the 4
end tting retainer screws. Carefully remove the end tting and end
tting retainer. Carefully remove the polysulfone tube from the top.
Be sure to not let the internals fall out. Use caution when removing
the polysulfone tube. Do not allow oat to fall out. Float damage may
result in inaccuracy. 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 oat, tube or o-rings.
To reassemble, carefully guide the polysulfone tube back into the case.
Reinstall the top end tting and end tting retainer. Tighten the 4
end tting retainer screws. Reinstall the instrument into the plumbing system after removing the old teon tape (with a wire brush) and
replacing with fresh teon tape.
Meters should be cleaned with a mild soap solution. This will be an
eective 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
7310 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 engineering 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 dicult
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 specic application.
Float types and orientations
When it comes to ow...we’re instrumental.
GV FLOAT SL FLOAT
(714) 891-0008 • www.kinginstrumentco.com
2
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