KING 7750 Series - Manual (Page 3)

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7750 Series
Installation Instructions
SHIELD SCREW
SHIELD SCREW O-RING
SHIELD WITH GASKET
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.
Flange Connection: Carefully remove the flowmeter from piping system. Remove
the inlet float stop and outlet float stop and withdraw float from top of meter. 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.
To reassemble, carefully guide the magnetic float back into the tube. Reinstall
and tighten inlet float stop and outlet float stop. Reinstall the instrument into the
plumbing system.
*Do not use cleaning agents that will damage float or tube.
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).
7750 meters that require repair should be sent to the factory. Please call for a
Return Merchandise Authorization (RMA) number and return instructions.
-Serious property damage and great personal injury could occur as the result of a
meter misused or used in an unsuitable application.
1) Inspect meter for damage that may have occurred during shipping.
Report any damage to the container to the freight carrier immediately.
This is important information. Read it carefully
before beginning work.
2) Make sure your pressure, temperature, fluid and other
requirements are compatible with the meter and components.
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 flow 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 fluid leaks at the threaded connections.
4) Handle the meter carefully during installation.
a) Use an appropriate amount of teflon 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.
Meters are not specifically recommended for service other than
water or air. The user must determine meter suitability for use
with other fluids.
ADDITIONALLY:
-7750 Series meters are designed for vertical installation only. (Inlet at
bottom, Outlet at top)
-Do not remove or adjust the screws on the side of the indicator
housing. These screws were positioned during factory calibration and
represent the zero adjustment. If the pointer is set on zero, proceed
with installation. If the pointer is not set at zero, follow these steps:
Caution: Zero is factory set when meter is
calibrated. DO NOT loosen screws that fasten
indicator housing to meter body. If indicator
housing is moved, the meter will need to be
calibrated.
INDICATOR HOUSING/METER TUBE ASSEMBLY
POINTER NEEDLE SET SCREW
FLOAT
FLOAT STOP LOCK WASHER
OUTLET FLOAT STOP
INLET FLOAT STOP
FLOAT STOP SCREW
1) Remove front cover with gasket from indicator housing.
2) Loosen set screw at the base of the pointer hub.
3) Reposition pointer to zero line.
4) Tighten set screw with a 1
16
" allen wrench by holding the pointer
hub and gently tightening the set screws.
5) Replace front cover with gasket on indicator housing.
-Do not loosen nuts that fasten indicator housing to metering tube. If the
relationship of meter tube and indicator housing are changed, meter must be
calibrated.
8X
8X
6) Meters with stainless steel fittings will support several feet of pipe
as long as significant vibration or stress resulting from misaligned pipe
are not factors.
FNPT Connection: Carefully remove the flowmeter from piping system. Remove
the inlet float stop and outlet float stop by twisting and withdrawing from the top.
Remove the float from top of meter. 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.
To reassemble, carefully guide the magnetic float back into the tube. Reinstall
and tighten inlet float stop and outlet float stop. Reinstall the instrument into the
plumbing system.
Maximum Non-Shock
Pressure and
Temperature
The maximum ambient
temperature for the indicator
housing is 158°F.
300#
psig
150#
psig
Temp.
°F
600 225 200
540 200 300
515 180 400
7750 series asseMbly
parts list:
1. Shield Screw
2. Shield Screw O-Ring
3. Shield With Gasket
4. Indicator Housing/Meter Tube Assembly
5. Pointer Needle Set Screw
6. Float
7. Float Stop Lock Washer
8. Outlet Float Stop
9. Inlet Float Stop
10. Float Stop Screw
Flange Connection
FnPt Connection