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.
MTF Multitube Flow Systems
To Customize your flow system:
1) Determine the flow pattern required for the application (see below).
2) 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 gasses at required concentrations. Gas proportioner frames are typically used at 50 psi.
3) Choose the appropriate 65 mm or 150 mm correlated flow tubes, for air or water.
4) Select a valve cartridge if desired that matches the range of the flow tube.
 |
Isolated
parallel channels |
Common
exhaust with parallel inlets |
Common
inlet with parallel exhausts
|
DIMENSIONS
| DIM "A" Scale Length |
DIM "H" |
DIM "O" |
DIM "W" |
| 1 tube |
2 tubes |
3 tubes |
4 tubes |
5 tubes |
6 tubes |
65 mm
|
5-½
[139.70] |
4-½
[114.30] |
1-¼
[31.75] |
2-¼
[57.15] |
3-¼
[82.55] |
4-¼
[107.95] |
5-¼
[133.35] |
6-¼
[158.75] |
| 150 mm |
9-13/16
[249.25] |
8-13/16
[223.85] |
1-¼
[31.75] |
2-¼
[57.15] |
3-¼
[82.55] |
4-¼
[107.95] |
5-¼
[133.35] |
6-¼
[158.75] |
PHYSICAL DATA
Scales: Universal 65 mm or 150 mm scales with correlation charts.
Accuracy: ±2% FS @ 70°F (21.1°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: Teflon®.
End Fittings: Anodized Aluminum or 316 stainless steel.
Front Shield: Polycarbonate.
Side Panels: Black, anodized aluminum.
O-Rings: Buna-N on aluminum models and Viton® on stainless steel models.
65 mm Frames
| Model Number |
Pattern |
Tube Capacity |
Wetted Parts |
| MTF-1621 |
Isolated |
2 |
Aluminum |
| MTF-2621 |
Isolated |
2 |
316 SS |
| MTF-1622 |
Common |
2 |
Aluminum |
| MTF-2622 |
Common |
2 |
316 SS |
| MTF-1631 |
Isolated |
3 |
Aluminum |
| MTF-2631 |
Isolated |
3 |
316 SS |
| MTF-1632 |
Common |
3 |
Aluminum |
| MTF-2632 |
Common |
3 |
316 SS |
| MTF-1641 |
Isolated |
4 |
Aluminum |
| MTF-2641 |
Isolated |
4 |
316 SS |
| MTF-1642 |
Common |
4 |
Aluminum |
| MTF-2642 |
Common |
4 |
316 SS |
| MTF-1651 |
Isolated |
5 |
Aluminum |
| MTF-2651 |
Isolated |
5 |
316 SS |
| MTF-1652 |
Common |
5 |
Aluminum |
| MTF-2652 |
Common |
5 |
316 SS |
| MTF-1661 |
Isolated |
6 |
Aluminum |
| MTF-2661 |
Isolated |
6 |
316 SS |
| MTF-1662 |
Common |
6 |
Aluminum |
| MTF-2662 |
Common |
6 |
316 SS |
150 mm Frames
| Model Number |
Pattern |
Tube Capacity |
Wetted Parts |
| MTF-1121 |
Isolated |
2 |
Aluminum |
| MTF-2121 |
Isolated |
2 |
316 SS |
| MTF-1122 |
Common |
2 |
Aluminum |
| MTF-2122 |
Common |
2 |
316 SS |
| MTF-1131 |
Isolated |
3 |
Aluminum |
| MTF-2131 |
Isolated |
3 |
316 SS |
| MTF-1132 |
Common |
3 |
Aluminum |
| MTF-2132 |
Common |
3 |
316 SS |
| MTF-1141 |
Isolated |
4 |
Aluminum |
| MTF-2141 |
Isolated |
4 |
316 SS |
| MTF-1142 |
Common |
4 |
Aluminum |
| MTF-2142 |
Common |
4 |
316 SS |
| MTF-1151 |
Isolated |
5 |
Aluminum |
| MTF-2151 |
Isolated |
5 |
316 SS |
| MTF-1152 |
Common |
5 |
Aluminum |
| MTF-2152 |
Common |
5 |
316 SS |
| MTF-1161 |
Isolated |
6 |
Aluminum |
| MTF-2161 |
Isolated |
6 |
316 SS |
| MTF-1162 |
Common |
6 |
Aluminum |
| MTF-2162 |
Common |
6 |
316 SS |
150 mm Gas Proportioner Frames
| Model Number |
Tube Capacity |
Wetted Parts |
| MTP-112 |
2 |
Aluminum |
| MTP-212 |
2 |
316 SS |
| MTP-113 |
3 |
Aluminum |
| MTP-213 |
3 |
316 SS |
65 mm Correlated Flow Tubes
| Model Number |
Max. Flow Rate (mL/min)* |
Float |
| Air |
Water |
| FT-61 |
6 |
0.07 |
Glass |
| FT-62 |
17 |
0.28 |
316SS |
| FT-63 |
49 |
0.55 |
Glass |
| FT-64 |
145 |
2.38 |
316SS |
| FT-67 |
202 |
2.6 |
Glass |
| FT-68 |
522 |
12.0 |
316SS |
| FT-611 |
1249 |
27 |
Glass |
| FT-612 |
2520 |
71 |
316SS |
| FT-613 |
2040 |
40 |
Glass |
| FT-614 |
3990 |
108 |
316SS |
| FT-617 |
6318 |
147 |
Glass |
| FT-618 |
12058 |
364 |
316SS |
| FT-621 |
23169 |
522 |
Glass |
| FT-622 |
42094 |
1261 |
316SS |
* Flow Rates are given for standard pressure and
temperature 70°F (21°C) @ 760 mm Hg.
150 mm Correlated Flow Tubes
| Model Number |
Max. Flow Rate (mL/min)* |
Float |
| Air |
Air (50 PSI) |
Water |
| FT-123 |
19 |
83 |
0.19 |
Glass |
| FT-124 |
61 |
242 |
0.94 |
316SS |
| FT-125 |
49 |
192 |
0.53 |
Glass |
| FT-126 |
137 |
460 |
2.45 |
316SS |
| FT-127 |
92 |
324 |
0.9 |
Glass |
| FT-128 |
264 |
825 |
4.7 |
316SS |
| FT-129 |
374 |
1086 |
5.5 |
Glass |
| FT-130 |
814 |
2024 |
20.4 |
316SS |
| FT-133 |
2313 |
5528 |
54 |
Glass |
| FT-134 |
4562 |
10813 |
130 |
316SS |
| FT-137 |
8678 |
19767 |
210 |
Glass |
| FT-138 |
16737 |
38995 |
506 |
316SS |
| FT-139 |
22536 |
49374 |
541 |
Glass |
| FT-140 |
41512 |
89880 |
1288 |
316SS |
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.
PHYSICAL DATA
Wetted Parts 6-turn Valves: For Aluminum frames: Aluminum body, 316 SS spindle, Delrin® orifice, Buna-N O-rings; for 316 SS frames: 316 SS body, 316 SS spindle, Kel-F® orifice, Viton® O-rings.
Wetted Parts 16-turn Valves: For Aluminum frames: Brass body, 316 SS spindle, Kel-F® orifice, Buna-N O-rings; for 316 SS frames: 316 SS body, 316 SS spindle, Kel-F® orifice, Viton®.
| Model Number Standard Valve 6-turn |
| Aluminum |
SS |
Flow Rate (Air) |
Flow Rate (H2O) |
| |
|
mL/min |
mL/min |
| FV-11 |
FV-21 |
0 to 5000 |
0 to 125 |
| FV-12 |
FV-22 |
5001 to 10,000 |
126 to 325 |
| FV-13 |
FV-23 |
10,001 and above |
326 and above |
| Model Number Standard Valve 16-turn |
| Aluminum |
SS |
Flow Rate (Air) |
Flow Rate (H2O) |
| |
|
mL/min |
mL/min |
| FVH-11 |
VA81 |
0 to 200 |
0 to 6 |
| FVH-12 |
VA82 |
201 to 400 |
7 to 12 |
| FVH-13 |
VA83 |
401 to 1000 |
13 to 26 |
| FVH-14 |
VA84 |
1001 to 2500 |
27 to 80 |
| FVH-15 |
VA85 |
2501 to 6200 |
81 to 200 |
| FVH-16 |
VA86 |
6201 and above |
201 and above |