65 mm and 150 mm Variable Area Flow Meters |
| FL-3600 FL-3700 FL-3800 FL-3900 |
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65 MM AND 150 MM Variable Area Flow Meters
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The OMEGA™ precision variable-area variable area flow meters for air, water, and gases have up to ±2% of full scale
accuracy and 0.25% of full scale repeatability (models ending in "07" or "45" have ±5% FS accuracy). These units feature an easy-to-read millimeter scale and are
supplied with correlation charts for air and water. For correlation data for nitrogen, oxygen, hydrogen, helium, argon
and carbon dioxide, please refer to the FLT Series flow tubes. Please consult
the Engineering Department for details. The scale is fused on the metering tube in 1 mm (3⁄32")
increments, which enables a user to read the flow rate with the highest accuracy.
The special scale design, where a vertical line runs through the length of the scale and intersects the
horizontal scale divisions, reduces parallax and eye fatigue, thus insuring high-accuracy readings. The front
polycarbonate shield is also curved to act as a magnifying glass, all of which yields superior performance over
other variable area flow meters with standard design.
Easy Flow Tube Replacement
The important advantage of the FL-3600 through the FL-3900 variable area flow meters is their special locknut design, which
facilitates the installation and replacement of flow tubes in the field for easy flow range change. The knurled locking
nut on top of the tube is backed off with a small Allen wrench or a 1 mm (3⁄32")
diameter rod, thereby releasing the tube for replacement. The system is designed so that the tube does not rotate
while it is tightened into place. Only 2 different standard valves are used: one for flows up to 7000 cc/min of air, the
other for higher flow rates. Six different high-resolution valves are used; consult Engineering for details when changing tubes.
Shielded for Pressurized Systems
These variable area flow meters, with precision-bored borosilicate glass metering tubes, are fully shielded against breakage.
A white opaque rear shield provides a background to aid in discerning the float position for accurate readings.
Panel Mounting Design
These variable area flow meters are equipped with horizontal ports and NPT threads for easy panel mounting. The ports have external threads
and are equipped with panel retaining nuts. No additional mounting hardware is required. Simply drill two holes 131 mm (5.156") apart
(center to center) for 65 mm units, 240 mm (9.469") apart (center to center) for 150 mm units. Each hole should be 16 mm
(5⁄8") in dia.
SPECIFICATIONS
Scales: 65 or 150 mm arbitrary scale
Accuracy: ±2% full scale (±5% FS on FL3607/3707 and FL3845/3945 models)
Repeatability: ±0.25% full scale
Connections: 1/8 FNPT, horizontal
Flow Tube: Borosilicate glass
End Fittings: Anodized aluminum or 316 SS
Side Panels: Aluminum
Valve Orifice: Polyacetal for aluminum models, Kel-F in 316 SS models
O-Rings and Packings: Buna in aluminum models, FKM in 316 SS models
Packings: FKM
Float Stops: PTFE
Max Temperature: 121°C (250°F)
Max Pressure: 200 psig (13.8 bar)
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† Price are shown in RMB.
Note: Comes complete with correlation tables (one each for air and water) printed on the back of the instruction sheet.
Suffix "G" denotes glass float
Suffix "ST"
Suffix "C" denotes carboloy float
Suffix "SA" denotes sapphire float.
Models ending in "07" or "45" have ±5% FS accuracy.
For units without valve, add suffix "-NV" to model number; subtract $10 for aluminum; subtract $13 for for 316SS.
For 16 turn, high resolution non-rising stem valve for 150 mm variable area flow meters, add suffix "-HRV" to model number; consult Flow Engineering for price.
For NIST traceable certificate for air, add suffix "-NISTAIR" to model number; add $225 to price.
For NIST traceable certificate for water, add suffix "-NISTWATER" to model number; add $275 to price.
For oxygen cleaning add "-02CLEAN" to model number, add $125 to price.
Minimum flow rate is 10% of the maximum rate shown.
††New flow rate values effective on purchases after March 1, 2013 only.
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Part Number Builder |
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Option Descriptions
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(1)
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Variable Area Flow Meter Types
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Select
36 for 65 mm flowtube aluminum frame
37 for 65 mm flowtube 316 SS frame
38 for 150 mm flowtube aluminum frame
39 for 150 mm flowtube 316 SS frame
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(2)
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Flow Tube and Float by Range
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Select
07G for 65 mm 5.77 cc/mi air 0.07 cc/min water
07ST for 65 mm 16.77 cc/mi air 0.28 cc/min water
07C for 65 mm 32.99 cc/mi air 0.62 cc/min water
35G for 65 mm 48.7 cc/mi air 0.59 cc/min water
35ST for 65 mm 214.5 cc/mi air 2.38 cc/min water
13G for 65 mm 104 cc/mi air 1.75 cc/min water
13ST for 65 mm 298 cc/mi air 5.78 cc/min water
10G for 65 mm 202 cc/mi air 2.64 cc/min water
10ST for 65 mm 522 cc/mi air 12 cc/min water
10C for 65 mm 818 cc/mi air 20.8 cc/min water
51G for 65 mm 986 cc/mi air 20.5 cc/min water
51ST for 65 mm 1946 cc/mi air 55.6 cc/min water
92G for 65 mm 1249 cc/mi air 26.97 cc/min water
92ST for 65 mm 2520 cc/mi air 70.67 cc/min water
92C for 65 mm 3680 cc/mi air 103.5 cc/min water
88G for 65 mm 2040 cc/mi air 39.7 cc/min water
88ST for 65 mm 3980 cc/mi air 108.3 cc/min water
88C for 65 mm 5739 cc/mi air 169.8 cc/min water
65G for 65 mm 2678 cc/mi air 52 cc/min water
65ST for 65 mm 4922 cc/mi air 150 cc/min water
96ST for 65 mm 12058 cc/mi air 364 cc/min water
17ST for 65 mm 24680 cc/mi air 745 cc/min water
63ST for 65 mm 42094 cc/mi air 1261 cc/min water
63C for 65 mm 58500 cc/mi air 1866 cc/min water
45G for 150 mm 18.6 cc/mi air 0.196 cc/min water
45ST for 150 mm 61.8 cc/mi air 0.956 cc/min water
45C for 150 mm 110 cc/mi air 1.92 cc/min water
41G for 150 mm 48.5 cc/mi air 0.53 cc/min water
41ST for 150 mm 141.5 cc/mi air 2.45 cc/min water
61G for 150 mm 92 cc/mi air 0.85 cc/min water
61SA for 150 mm 140 cc/mi air 1.92 cc/min water
61ST for 150 mm 263 cc/mi air 4.7 cc/min water
61C for 150 mm 454 cc/mi air 8.5 cc/min water
02G for 150 mm 374 cc/mi air 5.5 cc/min water
02ST for 150 mm 814 cc/mi air 20.4 cc/min water
02C for 150 mm 1222 cc/mi air 33.7 cc/min water
03G for 150 mm 825 cc/mi air 16.5 cc/min water
03ST for 150 mm 1682 cc/mi air 46 cc/min water
04G for 150 mm 2313 cc/mi air 53.5 cc/min water
04ST for 150 mm 4562 cc/mi air 130.4 cc/min water
05G for 150 mm 3807 cc/mi air 84.3 cc/min water
05ST for 150 mm 7590 cc/mi air 216.6 cc/min water
39G for 150 mm 8678 cc/mi air 210 cc/min water
39ST for 150 mm 16737 cc/mi air 506 cc/min water
40G for 150 mm 22536 cc/mi air 541 cc/min water
40ST for 150 mm 41512 cc/mi air 1288 cc/min water
40C for 150 mm 59494 cc/mi air 1881 cc/min water
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(3)
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Options
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Select
Nothing(leave field blank) for no options (standard unit)
-NV for no valve option
-HRV for 16-turn high resolution non-rising stem valve (150 mm models only)
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NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
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Related Links -
Related Products
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Related Products
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FLT Series:
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ACCESSORY FLOWTUBES For Use with FL-3000 Series Variable Area Flow Meters, Multitube Assemblies and Gas Proportioners
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