Positive Displacement Flow Meters
BiRotor Plus Series

Sizes: 3", 4" , and 6"

Flow Ranges: 65 GPM - 1000 GPM Normal, 40 GPM - 1200 GPM Extended

Flange Connections: 3", 4" & 6" ANSI

Pressure Ratings: 150/285; 300/740 ANSI

Materials of Construction:
Meter Housing: Aluminum, Steel-ASTM A-216
Meter Internals: Aluminum
Seal Materials: Buna, Viton
Bearing Material: Stainless Steel

Accuracy: +/- 0.075% or better over 30:1 Flow Range

Repeatability: +/- 0.01% or better over 30:1 Flow Range

BiRotor Plus Design Specification Sheets (DS Sheets)

Other Design Specification Sheets

Size Model Number Normal Max Flow Connection/Max Pressure
DS Sheet
2" B261

250 GPM
964 LPM

150#/285
2" B264 300#/740
3"
B271
425 GPM
1,608 LPM
150#/285
3"
B274
300#/740
4"
B281
1,000 GPM
3,785 LPM
150#/285
4"
B284
300#/740
6"
B291
1,000 GPM
3,785 LPM
150#/285

Other Design Specification Sheets

Please contact us for more information.