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Blue-White
Industries, Ltd.
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F-451 Flowmeter
Instruction Manual
Your Blue-White F-451 Series
In-Line Flowmeter
This flowmeter was designed to be easily
installed. Please read this Instruction guideline
before installing your flowmeter.
Do not install the meter in direct sunlight.
The meter can be damaged by UV light.
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®
Page 2 Page 3
Scale
Permanent dual scale silkscreen
Max Pressure
See Temperature vs. Pressure chart*
Max Temperature
See Temperature vs. Pressure chart*
Height
14.5” (368mm)
Width
3.1875” (81mm)
Accuracy
± 2% of full scale reading
F-451
INSTALLATION GUIDE
1 The flowmeter must be installed in a
ver tical plane to e nsure accura c y.
Misalignment may damage the flowmeter
and also may cause the o-ring seals to leak.
2 Use only PTFE tape on the threaded
adapters. Pipe dope and glue will damage
the polysulfone meter body and fittings. Or
install the flowmeter after all glued fittings
have dried and fumes have been purged
from the system.
3 Mounts and supports must be sturdy
enough to support the plumbing and
prevent vibration. Vibration and heavy
loads will damage the meter.
3
1
2
4 Avoid imposing a sudden burst of flow
to the meter. Solenoid valves will damage
the meter. Such a burst will cause the float to
impact the top float stop with destructive
force.
5 The Maximum fluid temperature is
dependant on the working pressure. High
pressure and temperature with damage the
meter. (see temperature VS pressure chart)
TEMPERATURE vs PRESSURE
Temperature
230°F / 110°C
210°F / 98.9°C
190°F / 87.7°C
170°F / 76.6°C
150°F / 65.6°C
130°F / 54.4°C
110°F / 43.3°C
90°F / 32.2°C
70°F / 21.1°C
MODELS WITH POLYSULFONE ADAPTERS
MODELS WITH POLYSULFONE ADAPTERS
MODELS WITH PVC ADAPTERS
0 / 0 30 / 2.1 60 / 4.1 90 / 6.2 120 / 8.3 150 / 10.3
MODELS WITH BRASS ADAPTERS
MODELS WITH BRASS ADAPTERS
PSIg / BAR
3
4
5
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F-451
Scale
Permanent dual scale silkscreen
Max Pressure
See Temperature vs. Pressure chart*
Max Temperature
See Temperature vs. Pressure chart*
Height
14.5” (368mm)
Width
3.1875” (81mm)
Accuracy
± 2% of full scale reading
EXPLODED VIEW, PARTS LIST AND SPECS
PARTS LISTEXPLODED VIEW
Catalog Description QtyItem
F-45038N
1
2
3
4
5
6
7
8
5
9
1
F-45030N
2
F-45036
F-45025
3
F-45025-2
2-136V
4
2-006A
5
2-008V
F-45028
8
F-450028-2
F-45046
9
F-45054
*Hastelloy C-276 Option Available
**EP Option Available
Shading indicates item not sold separately
Adapter, vertical, 1” F/NPT (PSF)
Adapter, vertical, 1-1/2” M/NPT (PVC)
Wireholder 1-10, 2-20 (PSF)
LG Wireholder 3-30, 4-40 (PSF)
Float Stop .5-6, 1-10, 2-20 (Aflas)
Large Float Stop, 3-30, 4-40 (Aflas)
Guide Wire, .5-6, 1-10, 2-20, (SS)*
Guide Wire, 3-30, 4-40 (SS)*
Wireholder, .5-6, 1-10, 2-20 (PSF)
Wireholder, 3-30, 4-40 (PSF)
METER SPECS
O-Ring 2-136 (Viton)**
Union Nut 2
PSF= polysulfone
SS = # 316 Stainless Steel
PP = polypropolyne
PVC = Polyvinyl chloride
2
2
2
1
1
1Float (SS)*6 -
1Meterbody (PSF)7 -
1
1
APPLICATION NOTES
Although meters may be suitable for other chemicals, Blue-White cannot
guarantee their suitability. It is the responsibility of the user to determine the
suitability of the flowmeter in their application. Flowmeters are tested and
calibrated for water only.
MAINTENANCE
The “Exploded View” drawing illustrates assembly of the F-451N series
meter. If your flowmeter needs to be cleaned refer to this drawing when
reassembling the unit. The tapered tube may be cleaned with a soft bottle
brush. Use a MILD soap and water solution for cleaning purposes. Note the
float’s “up” position.
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BLUE-WHITE INDUSTRIES
LIMITED WARRANTY
FLOWMETERS are warranted to be free of defects in material and workmanship
for up to 12 months from the date of factory shipment. Warranty coverage is limited to
repair or replacement of the defective flowmeter only. Blue-White Industries does not
assume responsibility for any other damage that may occur.
This warranty does not cover damage to the flowmeter that results from misuse or
alterations, nor damage that occurs as a result of: meter misalignment, improper
installation, over tightening, use of non- recommended chemicals, use of nonreccomended adhesives or pipe dopes, excessive heat or pressure, or allowing the
meter to support the weight of related piping. Flowmeters are tested and calibrated
with water only. Although meters may be suitable for other chemicals, Blue-White
cannot guarantee their suitability.
Flowmeters are repaired at the factory only. Call or write the factory to receive a
Return Authorization Number, carefully pack the flowmeter to be returned, including a
brief description of the problem. Note the RA number on the outside of the carton.
Prepay all shipping costs. The factory does not accept COD Shipments. Damage that
occurs during shipping is the responsibility of the sender.
We are not satisfied
until you are!
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