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Replacement Flow Tubes for Flow Meters & Gas Proportioners

ACCESSORY FLOWTUBES For Use with FL-3000 Series Variable Area Flow Meters, Multitube Assemblies and Gas Proportioners
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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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Data Sheet (PDF)

$444.20

Item# FLT-02ST-NISTAIR

In stock

Lead Time (If not in stock): 5 weeks
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ACCESSORY FLOWTUBES For Use with FL-3000 Series Variable Area Flow Meters, Multitube Assemblies and Gas Proportioners FLT-02ST-NISTAIR FLT-02ST-NISTAIR
  • Multitube Assemblies
  • Gas Proportioners

FLT-02ST-NISTAIR Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Flow Rate
Media Type
Material
Works With
Connection Size


The flow tubes shown on this page can be installed into the FL3000, gas proportioning FL-1GP Series or multiple tube FL-2AA Series 150 mm Variable Area Flow Meters. Flow capacities shown are based on calibrations with air and water at 21°C (70°F) and 14.7 psia. For other fluids or conditions, the following equations provide rough approximations.

GAS
Qa = Qg x [G x (Ta/T0) x (P0/Pa)]1/2

where:
Qa = equivalent air flow scale reading at Standard Conditions
Qg = true flow of metered gas
G = specific gravity of metered gas
Ta = absolute temperature at flow conditions (Kelvin or Rankine)
T0 = absolute temperature at standard conditions (294 K or 530°R)
Pa = pressure at flow conditions (psia)
P0 = pressure at Standard Conditions (14.7 psia)

LIQUID
Qw = QL x [(df - dw)/(df - dL)) x (dL/dw)]1/2

where:
Qw = equivalent water flow capacity at Standard Conditions
QL = max flow of metered liquid
df = density of float selected
   Glass: 2.53 g/ml
   Sapphire: 3.98 g/ml
   Stainless Steel: 8.04 g/ml
   Carboloy: 14.98 g/ml
   Tantalum: 16.58 g/ml
dL = density of metered liquid, g/ml
dw = density of water at Standard Conditions (1.0 g/ml)
(note: does not include viscosity effect)

150 mm Flowtube, Gas Flow Capacities of Routine Gases
Ranges in cc/min, flowtubes have 10:1 range
Model No. Air Water Argon CO2 He H2 N2 O2
FLT-45G 19 0.196 15 23 16 37 20 17
FLT-45SA 30 0.392 24 37 26 59 31 27
FLT-45ST 60.6 0.94 49 72 53 123 62 54
FLT-45C 110 1.91 90 127 101 232 114 99
FLT-45T 121 2.13 99 139 112 256 125 109
FLT-41G 49 0.49 44 56 46 94 48 42
FLT-41SA 73 0.98 60 84 69 149 76 70.4
FLT-41ST 143 2.34 113 150 133 301 143 131
FLT-41C 247 4.7 202 251 260 567 255 228
FLT-41T 264 5.1 222 263 288 602 274 244
FLT-61G 93 0.9 75.6 103 90 208 92 81
FLT-61C 444 8.5 373 445 519 1120 462 407
FLT-61T 484 9.2 393 470 555 1225 495 433
FLT-02G 374 5.5 305 355 450 1021 382 340
FLT-02SA 513 10.0 429 472 681 1497 520 472
FLT-02ST 814 20.4 676 728 1290 2496 824 753
FLT-02C 1222 33.7 1020 1072 2221 3876 1220 1131
FLT-02T 1331 36.1 1085 1134 2356 4257 1310 1206
FLT-03G 844 16.5 687 725 1490 2620 827 772
FLT-03SA 1093 26.1 910 944 2059 3546 1110 1024
FLT-03ST 1682 44.6 1380 1420 3397 5547 1662 1545
FLT-03C 2423 70.5 1996 2039 5120 8170 2405 2246
FLT-03T 2576 75.6 2131 2163 5437 8717 2575 2364
FLT-04G 2313 54 1949 2048 4880 7817 2395 2169
FLT-04SA 3079 78 2605 2620 6458 10,455 3142 2860
FLT-04ST 4562 133 3903 3990 9770 15,855 4685 4341
FLT-04C 6621 201 5665 5743 14,500 22,790 6845 6307
FLT-04T 6932 212 6040 6018 15,420 24,252 7080 6690
FLT-05G 3922 84 3151 3374 7803 13,105 3868 3485
FLT-05SA 5188 126 4175 4388 10,336 16,108 5090 4652
FLT-05ST 7825 217 6384 6308 15,960 27,804 7722 6992
FLT-05C 11,154 329 9460 9222 23,509 37,553 10,973 10,082
FLT-05T 11,965 353 9627 9475 25,131 39,998 11,628 10,741
FLT-39G 8678 210 7366 7485 19,426 29,840 8916 8269
FLT-39SA 11,357 306 9539 9557 25,400 40,006 11,524 10,706
FLT-39ST 16,737 506 14,131 14,051 38,576 59,995 17,021 15,710
FLT-39C 23,752 747 20,166 19,854 56,220 83,052 24,071 22,432
FLT-39T 25,252 790 21,414 21,115 60,596 90,410 25,709 23,790
FLT-40G 23,742 541 19,761 18,989 53,100 85,812 23,512 21,350
FLT-40SA 30,711 806 24,563 23,855 70,100 110,100 29,930 27,181
FLT-40ST 45,227 1288 35,300 34,287 103,647 159,699 43,000 39,567
FLT-40C 66,346 1881 47,890 46,311 146,500 221,872 59,580 54,902
FLT-40T 69,940 2001 51,997 49,009 189,826 234,423 63,826 57,960
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