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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)

$125.61

Item# FLT-40SA

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Lead Time (If not in stock): 3 weeks

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Multitube Assemblies
Gas Proportioners

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FLT-40SA 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

Material

Media Type

Connection Size

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Specs

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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
Q_a = Q_g x [G x (T_a/T₀) x (P₀/P_a)]^1/2

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

LIQUID
Q_w = Q_L x [(d_f - d_w)/(d_f - d_L)) x (d_L/d_w)]^1/2

where:
Q_w = equivalent water flow capacity at Standard Conditions
Q_L = max flow of metered liquid
d_f = 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
d_L = density of metered liquid, g/ml
d_w = 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