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Dwyer Series TVA All Teflon® Flowmeters

75 mm and 125 mm, 10:1 Turndown, ±5% FS Accuracy
Series TVA All Teflon® Flowmeters offer solutions for measuring flow rates of highly corrosive or ultra-pure liquids. Flowmeters are designed with 0 to 10 scale graduations denoting a discrete flow rate.
SPECIFICATIONS
Service: Compatible Gases or Liquids.
Wetted Materials:
Flowtube: Teflon® PFA.
Float and End Fittings: Teflon® PTFE.
Guide Rods: PCTFE.
Temperature Limits: 250°F (121°C).
Pressure Limits: 100 psig (6.9 bar).
Accuracy: ±5% FS @ 70°F (21.1°C) and 14.7 psia (1 atm absolute).
Repeatability: ±0.25%.
Leak Integrity: 1 x 10-7 sccs of Helium.
Scales: 0 to 10 markings, 75 mm or 125 mm lengths.
Turn-down Ratio: 10:1.
Mounting: Vertical.
DIMENSIONS
Model A B C D E F G
TVA11XX
TVA13XX
TVA22XX
TVA24XX
4.97 [126]
4.97 [126]
8.72 [221]
8.47 [215]
0.56 [14]
0.56 [14]
0.88 [22]
1.00 [25]
1.06 [27]
1.25 [32]
1.75 [44]
1.75 [44]
3.35 [85]
4.65 [118]
4.57 [116]
5.95 [151]
1.25 [32]
1.50 [38]
2.00 [51]
2.25 [57]
6.16 [156]
6.16 [156]
10.4 [264]
10.4 [264]
1/4
3/8
1/2
3/4
Panel Mounting: Drill two holes: 3/4" dia. at 4.97" apart for 1/4" NPT models, 7/8" dia. at 4.97" apart for 3/8" NPT models, 1" dia. at 8.72" apart for 1/2" NPT models, and 1-1/4" dia. at 8.47" apart for 3/4" models (center-to-center).
POPULAR MODELS LOW RANGE WITH VALVE
Model Number Length Connections Flow Rate (H2O) gph (ml/min)
 TVA1113  75mm  1/4" NPT (F)  6.34 (400)
 TVA1115  75mm  1/4" NPT (F)  15.9 (1000)
 TVA1317  75mm  3/8" NPT (F)  39.6 (2500)
 TVA1319  75mm  3/8" NPT (F)  79.2 (5000)
 
POPULAR MODELS LOW RANGE WITHOUT VALVE
Model Number Length Connections Flow Rate (H2O) gph (ml/min)
 TVA1103  75mm  1/4" NPT (F)  6.34 (400)
 TVA1105  75mm  1/4" NPT (F)  15.9 (1000)
 TVA1307  75mm  3/8" NPT (F)  39.6 (2500)
 TVA1309  75mm  3/8" NPT (F)  79.2 (5000)
POPULAR MODELS HIGH RANGE WITH VALVE
Model Number Length Connections Flow Rate (H2O) gpm (l/min)
 TVA22110  125mm  1/2" NPT (F)  3.43 (13)
 TVA24112  125mm  3/4" NPT (F)  7.93 (30)
 TVA24114  125mm  3/4" NPT (F)  11.9 (45)
POPULAR MODELS HIGH RANGE WITHOUT VALVE
Model Number Length Connections Flow Rate (H2O) gpm (l/min)
 TVA22010  125mm  1/2" NPT (F)  3.43 (13)
 TVA24012  125mm  3/4" NPT (F)  7.93 (30)
 TVA24014  125mm  3/4" NPT (F)  11.9 (45)