Series MTF Multitube Flow System

Customize to Fit Application, 65 mm or 150 mm Variable Area Flow Tubes

Customize flow systems to meet application requirements. Systems can be configured with up to six different flow tubes with various flow capacities and flow patterns. The Series MTF Multitube Flow Systems are ideal for multichannel metering, mixing, or monitoring applications.

To Customize your flow system:

Determine the flow pattern required for the application.
Select a 65 mm or 150 mm frame, along with the appropriate number of tubes required, flow pattern, and wetted parts. Choose a 150 mm Gas Proportioner Frame (Series MTP) to blend the 2 or 3 gases at required concentrations. Gas proportioner frames are typically used at 50 psi.
Choose the appropriate 65 mm or 150 mm correlated flow tubes, for air or water.
Select a valve cartridge if desired that matches the range of the flow tube.

Note: Refer to catalog page under Support Library tab in order to ensure the purchase of a complete part.

California Residents: Click Here for Proposition 65 WARNING.

Starting at $63.98

Ordering

Grouped product items
Model	Description	Availability*	Price
FT-123	150 mm correlated flow tube, max. flow rate 19 mL/min air (0.19 mL/min water), glass float.	7-8 Weeks*	$184.25
FT-124	150 mm correlated flow tube, max. flow rate 61 mL/min air (0.94 mL/min water), 316 SS float.	7-8 Weeks*	$184.25
FT-125	150 mm correlated flow tube, max. flow rate 49 mL/min air (0.53 mL/min water), glass float.	7-8 Weeks*	$184.25
FT-126	150 mm correlated flow tube, max. flow rate 137 mL/min air (2.45 mL/min water), 316 SS float.	7-8 Weeks*	$184.25
FT-127	150 mm correlated flow tube, max. flow rate 92 mL/min air (0.90 mL/min water), glass float.	7-8 Weeks*	$184.25
FT-128	150 mm correlated flow tube, max. flow rate 264 mL/min air (4.70 mL/min water), 316 SS float.	7-8 Weeks*	$184.25
FT-129	150 mm correlated flow tube, max. flow rate 374 mL/min air (5.50 mL/min water), glass float.	7-8 Weeks*	$184.25
FT-130	150 mm correlated flow tube, max. flow rate 814 mL/min air (20.4 mL/min water), 316 SS float.	7-8 Weeks*	$184.25
FT-133	150 mm correlated flow tube, max. flow rate 2313 mL/min air (54 mL/min water), glass float.	7-8 Weeks*	$184.25
FT-134	150 mm correlated flow tube, max. flow rate 4562 mL/min air (130 mL/min water), 316 SS float.	7-8 Weeks*	$184.25
FT-137	150 mm correlated flow tube, max. flow rate 8676 mL/min air (210 mL/min water), glass float.	7-8 Weeks*	$184.25
FT-138	150 mm correlated flow tube, max. flow rate 16737 mL/min air (506 mL/min water), 316 SS float.	7-8 Weeks*	$184.25
FT-139	150 mm correlated flow tube, max. flow rate 22536 mL/min air (541 mL/min water), glass float.	7-8 Weeks*	$210.10
FT-242	150 mm direct reading flow tube, max. flow rate 1.50 SCFM air, 316 SS float.	7-8 Weeks*	$213.20
FT-244	150 mm direct reading flow tube, max. flow rate 2.50 SCFH air, carboloy float.	7-8 Weeks*	$184.25
FT-245	150 mm direct reading flow tube, max. flow rate 5.00 SCFH air, glass float.	7-8 Weeks*	$184.25
FT-247	150 mm direct reading flow tube, max. flow rate 8.25 SCFH air, glass float.	7-8 Weeks*	$184.25
FT-249	150 mm direct reading flow tube, max. flow rate 16.5 SCFH air, 316 SS float.	7-8 Weeks*	$184.25
FT-251	150 mm direct reading flow tube, max. flow rate 23.0 SCFH air, carboloy float.	7-8 Weeks*	$193.55
FT-253	150 mm direct reading flow tube, max. flow rate 50.0 SCFH air, glass float.	7-8 Weeks*	$183.20
FT-254	150 mm direct reading flow tube, max. flow rate 90.0 SCFH air, 316 SS float.	7-8 Weeks*	$183.20
FT-255	150 mm direct reading flow tube, max. flow rate 94.0 SCFH air, 316 SS float.	7-8 Weeks*	$183.20
FT-61	65 mm correlated flow tube, max. flow rate 6 mL/min air (0.07 mL/min water), glass float.	7-8 Weeks*	$109.70
FT-611	65 mm correlated flow tube, max. flow rate 1249 mL/min air (27 mL/min water), glass float.	7-8 Weeks*	$131.45
FT-612	65 mm correlated flow tube, max. flow rate 2520 mL/min air (71 mL/min water), 316 SS float.	7-8 Weeks*	$131.45
FT-613	65 mm correlated flow tube, max. flow rate 2040 mL/min air (40 mL/min water), glass float.	7-8 Weeks*	$131.45
FT-614	65 mm correlated flow tube, max. flow rate 3990 mL/min air (108 mL/min water), 316 SS float.	7-8 Weeks*	$131.45
FT-617	65 mm correlated flow tube, max. flow rate 6318 mL/min air (147 mL/min water), glass float.	7-8 Weeks*	$131.45
FT-618	65 mm correlated flow tube, max. flow rate 12058 mL/min air (364 mL/min water), 316 SS float.	7-8 Weeks*	$131.45
FT-62	65 mm correlated flow tube, max. flow rate 17 mL/min air (0.28 mL/min water), 316 SS float.	7-8 Weeks*	$109.70
FT-621	65 mm correlated flow tube, max. flow rate 23168 mL/min air (522 mL/min water), glass float.	7-8 Weeks*	$157.30
FT-622	65 mm correlated flow tube, max. flow rate 42094 mL/min air (1261 mL/min water), 316 SS float.	7-8 Weeks*	$157.30
FT-63	65 mm correlated flow tube, max. flow rate 49 mL/min air (0.55 mL/min water), glass float.	7-8 Weeks*	$109.70
FT-64	65 mm correlated flow tube, max. flow rate 145 mL/min air (2.38 mL/min water), 316 SS float.	7-8 Weeks*	$109.70
FT-67	65 mm correlated flow tube, max. flow rate 202 mL/min air (2.6 mL/min water), glass float.	7-8 Weeks*	$109.70
FT-68	65 mm correlated flow tube, max. flow rate 522 mL/min air (12.0 mL/min water), 316 SS float.	7-8 Weeks*	$131.45
FT-741	65 mm direct reading flow tube, max. flow rate .60 SCFM air, carboloy float.	7-8 Weeks*	$158.35
FT-743	65 mm direct reading flow tube, max. flow rate 2.2 SCFH air, glass float.	7-8 Weeks*	$109.70
FT-746	65 mm direct reading flow tube, max. flow rate 6.0 SCFH air, glass float.	7-8 Weeks*	$109.70
FT-748	65 mm direct reading flow tube, max. flow rate 10.0 SCFH air, 316 SS float.	7-8 Weeks*	$109.70
FT-750	65 mm direct reading flow tube, max. flow rate 18.0 SCFH air, 316 SS float.	7-8 Weeks*	$109.70
FT-752	65 mm direct reading flow tube, max. flow rate 25.0 SCFH air, 316 SS float.	7-8 Weeks*	$109.70
FT-753	65 mm direct reading flow tube, max. flow rate 50.0 SCFH air, 316 SS float.	7-8 Weeks*	$109.70
FT-754	65 mm direct reading flow tube, max. flow rate 90.0 SCFH air, 316 SS float.	7-8 Weeks*	$157.30
FV-11	Standard valve, 6-turn, flow rate 0-5000 mL/min air (0-125 mL/min water).	3-4 Weeks*	$105.55
FV-12	Standard valve, 6-turn, flow rate 5001-10000 mL/min air (126-325 mL/min water).	7-8 Weeks*	$105.55
FV-13	Standard valve, 6-turn, flow rate 10001 and above mL/min air (326 and above mL/min water).	7-8 Weeks*	$105.55
FV-21	Standard valve, 6-turn, flow rate 0-5000 mL/min air (0-125 mL/min water).	7-8 Weeks*	$142.85
FV-22	Standard valve, 6-turn, flow rate 5001-10000 mL/min air (126-325 mL/min water).	7-8 Weeks*	$142.85
FV-23	Standard valve, 6-turn, flow rate 10001 and above mL/min air (326 and above mL/min water).	7-8 Weeks*	$142.85
FVH-11	High precision valve, 16-turn, flow rate 0-200 mL/min air (0-6 mL/min water).	7-8 Weeks*	$63.98
FVH-12	High precision valve, 16-turn, flow rate 201-400 mL/min air (7-12 mL/min water).	7-8 Weeks*	$193.55
FVH-13	High precision valve, 16-turn, flow rate 401-1000 mL/min air (13-26 mL/min water).	7-8 Weeks*	$193.55
FVH-14	High precision valve, 16-turn, flow rate 1001-2500 mL/min air (27-80 mL/min water).	7-8 Weeks*	$193.55
FVH-15	High precision valve, 16-turn, flow rate 2501-6200 mL/min air (81-200 mL/min water).	7-8 Weeks*	$193.55
FVH-16	High precision valve, 16-turn, flow rate 6201 and above mL/min air (201 and above mL/min water).	7-8 Weeks*	$193.55
MTF-1121	150 mm frame, isolated pattern, 2 tube capacity, aluminum wetted parts.	7-8 Weeks*	$426.40
MTF-1122	150 mm frame, common pattern, 2 tube capacity, aluminum wetted parts.	7-8 Weeks*	$495.75
MTF-1131	150 mm frame, isolated pattern, 3 tube capacity, aluminum wetted parts.	7-8 Weeks*	$510.25
MTF-1132	150 mm frame, common pattern, 3 tube capacity, aluminum wetted parts.	7-8 Weeks*	$657.20
MTF-1141	150 mm frame, isolated pattern, 4 tube capacity, aluminum wetted parts.	7-8 Weeks*	$741.05
MTF-1142	150 mm frame, common pattern, 4 tube capacity, aluminum wetted parts.	7-8 Weeks*	$1,603.20
MTF-1152	150 mm frame, common pattern, 5 tube capacity, aluminum wetted parts.	7-8 Weeks*	$994.65
MTF-1161	150 mm frame, isolated pattern, 6 tube capacity, aluminum wetted parts.	7-8 Weeks*	$1,038.10
MTF-1162	150 mm frame, common pattern, 6 tube capacity, aluminum wetted parts.	7-8 Weeks*	$1,168.50
MTF-1621	65 mm frame, isolated pattern, 2 tube capacity, aluminum wetted parts.	7-8 Weeks*	$309.45
MTF-1622	65 mm frame, common pattern, 2 tube capacity, aluminum wetted parts.	7-8 Weeks*	$371.55
MTF-1631	65 mm frame, isolated pattern, 3 tube capacity, aluminum wetted parts.	7-8 Weeks*	$384.00
MTF-1632	65 mm frame, common pattern, 3 tube capacity, aluminum wetted parts.	7-8 Weeks*	$484.40
MTF-1641	65 mm frame, isolated pattern, 4 tube capacity, aluminum wetted parts.	7-8 Weeks*	$495.75
MTF-1642	65 mm frame, common pattern, 4 tube capacity, aluminum wetted parts.	7-8 Weeks*	$580.65
MTF-1651	65 mm frame, isolated pattern, 5 tube capacity, aluminum wetted parts.	7-8 Weeks*	$596.15
MTF-1652	65 mm frame, common pattern, 5 tube capacity, aluminum wetted parts.	7-8 Weeks*	$710.00
MTF-1661	65 mm frame, isolated pattern, 6 tube capacity, aluminum wetted parts.	7-8 Weeks*	$692.40
MTF-1662	65 mm frame, common pattern, 6 tube capacity, aluminum wetted parts.	7-8 Weeks*	$853.85
MTF-2121	150 mm frame, isolated pattern, 2 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$864.20
MTF-2122	150 mm frame, common pattern, 2 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$885.95
MTF-2131	150 mm frame, isolated pattern, 3 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,293.75
MTF-2132	150 mm frame, common pattern, 3 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,381.70
MTF-2141	150 mm frame, isolated pattern, 4 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,681.85
MTF-2142	150 mm frame, common pattern, 4 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,824.70
MTF-2151	150 mm frame, isolated pattern, 5 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$2,078.30
MTF-2152	150 mm frame, common pattern, 5 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$2,227.30
MTF-2162	150 mm frame, common pattern, 6 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$2,785.20
MTF-2621	65 mm frame, isolated pattern, 2 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$795.90
MTF-2622	65 mm frame, common pattern, 2 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$841.45
MTF-2631	65 mm frame, isolated pattern, 3 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,083.65
MTF-2632	65 mm frame, common pattern, 3 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,199.55
MTF-2641	65 mm frame, isolated pattern, 4 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,439.70
MTF-2642	65 mm frame, common pattern, 4 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,582.50
MTF-2651	65 mm frame, isolated pattern, 5 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,799.85
MTF-2652	65 mm frame, common pattern, 5 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,941.65
MTF-2661	65 mm frame, isolated pattern, 6 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$2,149.70
MTF-2662	65 mm frame, common pattern, 6 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$2,296.65
MTP-113	150 mm gas proportioner frame, 3 tube capacity, aluminum wetted parts.	4-5 Weeks*	$697.00
MTP-212	150 mm gas proportioner frame, 2 tube capacity, 316 SS wetted parts.	4-5 Weeks*	$636.00
MTP-213	150 mm gas proportioner frame, 3 tube capacity, 316 SS wetted parts.	7-8 Weeks*	$1,092.95
VA81	High precision valve, 16-turn, flow rate 0-200 mL/min air (0-6 mL/min water).	7-8 Weeks*	$310.50
VA82	High precision valve, 16-turn, flow rate 201-400 mL/min air (7-12 mL/min water).	7-8 Weeks*	$310.50
VA83	High precision valve, 16-turn, flow rate 401-1000 mL/min air (13-26 mL/min water).	7-8 Weeks*	$310.50
VA84	High precision valve, 16-turn, flow rate 1001-2500 mL/min air (27-80 mL/min water).	7-8 Weeks*	$310.50
VA85	High precision valve, 16-turn, flow rate 2501-6200 mL/min air (81-200 mL/min water).	7-8 Weeks*	$310.50
VA86	High precision valve, 16-turn, flow rate 6201 and above mL/min air (201 and above mL/min water).	7-8 Weeks*	$309.60

Specifications

Scales:: Universal 65 mm or 150 mm scales with correlation charts.
Accuracy:: Accuracy: *Correlated Flow Tubes: +/- 2% FS @ 70 deg F (21.1 deg C) and 14.7 psia (1 atm absolute); Direct Reading Flow Tubes: +/- 5% FS @ 70 deg F (21.1 deg C) and 14.7 psia (1 atm absolute). *Models FT-61, FT-62, FT-123, and FT-124 have an accuracy of +/- 5% FS @ 70 deg F (21.1 deg C) and 14.7 psia (1 atm absolute).
Repeatability:: ±0.25% of scale reading.
Turn-down Ratio:: 10:1, 20:1 with combinations of two floats installed in meter.
Maximum Operating Pressure:: 200 psig (13.8 bar).
Maximum Operating Temperature:: 250°F (121°C).
Mounting:: Vertical.
Connection:: 1/8" female NPT.
Flowtube:: Borosilicate glass.
Float:: 316 stainless steel or black glass as indicated.
Float Stops:: PTFE.
End Fittings:: Anodized Aluminum or 316 stainless steel.
Front Shield:: Polycarbonate.
Side Panels:: Black, anodized aluminum.
O-rings:: Buna-N on aluminum models and Fluoroelastomer on stainless steel models.
Wetted Parts:: 6-turn Valves: For Aluminum Frames: aluminum body, 316 SS spindle, Acetal orifice, Buna-N o-rings; For 316 SS Frames: 316 SS body, 316 SS spindle, PCTFE orifice, fluoroelastomer o-rings. 16-turn Valves: For Aluminum Frames: brass body, 316 SS spindle, PCTFE orifice, Buna-N o-rings; For 316 SS Frames: 316 SS body, 316 SS spindle, PCTFE orifice, fluoroelastomer o-rings.
: Valve Cartridges
For metering or mixing applications, complete your multitube flow system by selecting a valve cartridge suitable for the flow range. Choose a standard 6-turn valve or high precision 16-turn valve.