King Instrument 7330 Operating Manual

7330 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 modied. 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 teon 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 plastic ttings must be installed so that ttings are not
made to support any part of the associated plumbing. In addition,
meter frame should be fastened to bulkhead, panel or column.

7) Meters used in gas service should have suitable valves plumbed in
at the inlet and outlet of the meter. These valves should be no more
than 1-1/2 pipe diameters from the meter ports. The valve at the out­let should be used to create back pressure as required to prevent oat
bounce. It should be set initially and then left alone. The inlet valve
should be used for throttling purposes. Depending on the installation,
valves may not be essential, but they are most useful in many instal­lations. Remember: To get a correct reading of ow in gas service, it is
necessary to know the pressure right at the outlet of the meter (before
the valve).

8) Pressure and temperature maximums must never be exceeded.

ADDITIONALLY

•7330Seriesmetersaredesignedforverticalinstallationonly.(Inletat

bottom, Outlet at top)

When it comes to ow...we’re instrumental.

[phone] • www.kinginstrumentco.com

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7330 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 Instructions

Max Non-Shock Pressure and Temperature

Fitting Temperature Pressure

PVC 130°F 150psig(41W-72W)

130°F 125psig(90W-103W)

PVDF 200°F 150psig(41W-72W)

200°F 125psig(90W-103W)

AmbientTemp.33°F-125°F

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.

• 7330metersarenotoxygencleaned.Usewithincompatibleuids

may cause o-rings to swell and break.

CLEANING

Carefully remove the owmeter from piping system. Loosen and
remove the outlet union nut and remove the outlet end tting. With­draw the oat (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 oat (and guide rod assembly
where applicable) back into the tube. Reinstall the outlet end tting
and outlet union nut and tighten the union nut. Reinstall the instru­ment into the plumbing system after removing the old teon tape
(with a wire brush) and replacing with fresh teon tape.

*Do not use cleaning agents that will damage oat, tube or o-rings.

Meters should be cleaned with a mild soap solution. This will be an
eective 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

7330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 dicult
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 specic application.

FLOAT TYPES AND ORIENTATIONS

GV FLOAT SL FLOAT

When it comes to ow...we’re instrumental.

[phone] • www.kinginstrumentco.com

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