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| Model 500 Nutating Disc Flow Meter |
 Though
originally designed for flood water flow monitoring applications,
the Model 500, a rugged, moderately priced, positive displacement
flow meter, has gained a solid reputation for reliable
service in a growing range of rigorous industrial class
operations, where positive displacement flow monitoring
is desired. |
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| Model 500 Nutating Disc Flow Meter |
| Specifications |
| Material
of Construction: |
External
Housing is a two-part bronze body casting.
Internally, the nutating disc mechanism includes a fiberglass-filled
Ryton® measuring chamber and wobble plate assembly (composed
of graphite impregnated Neoprene of extremely high durameter). |
| Registration: |
7
Digit Display with Test Pointer |
| Flow
Range: |
103-635
BPD (42 Gal. Bbl)
3-20 GPM (U.S. Gal's)
16-109 (Cu. Meters) |
| Accuracy: |
±2%
of Reading |
| Pressure
Rating: |
2000
PSI Operating Pressure Max. |
| Operating
Temperature: |
-32°
F. to +200° F. |
| Connections: |
1.25"
Straight External Pipe Thread (1" NPT optional) |
| Overall
Dimensions: |
7.75"
Length x 5.5" Width x Width 8.25" Height |
| Weight: |
Approximately
21 lbs. |
| Operating
Principle |
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Fluid entering the flow meter
passes through the inlet port of the cylindrically-shaped
measurement chamber (1), filling the chamber directly
below the diagonally-mounted nutating disc. This action
causes the disc to wobble (or nutate) in a counterclockwise
direction (2), causing the spindle shaft, located
on the ball-shaped pivot, to rotate against the vertical
magnetic shaft. This rotating action is transmitted
through the magnetic drive assembly to the mechanical
register (or pulse register). This measurement chamber
actually contains two alternating positive displacement
compartments of equal capacity. On each rotational
cycle of the nutating disc, one compartment
is being filled (expanding capacity) while the other
is discharging fluid (contracting capacity), providing
a steady, continuous flow.
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