50 Hz
Screw Spindle Pumps BFS2
Screw Spindle Pumps
Screw spindle pumps with their silicon carbide spindle housing and highly wear resistant spindles are capable of achieving extremely high pressures.
Brinkmann high pressure screw pumps are designed for pumping filtered and lubricating fluids such as coolant oils and watersoluble coolants.
High pressure screw pumps are NOT designed for dry-running.
Screw spindles
BFS2
Technical drawing
Screw Spindle Pumps - BFS2
*) Dimensions for 4-pole standard
motor upon request.
L = Leakage hole
S = Mounting plate, please refer to
the cut-out of mounting hole
Dimensions in Inches / mm
All corners must be deburred!
According to ISO 2768-m
| Power 2-poles | A | B | C |
| HP | Inch | Inch | Inch |
| B 1.7 / 2 | 16.34 | 6.93 | 5.12 |
| B 2.3 | 17.36 | 6.93 | 5.12 |
| B 2.5 / 2.9 / 3.5 | 18.66 | 6.93 | 5.12 |
| B 4 / 4.4 / 5.4 | 20.20 | 8.58 | 5.91 |
| B 6.7 / 7.4 | 21.38 | 10.16 | 7.48 |
| B 8 / 8.7 | 22.99 | 10.16 | 7.60 |
| B 10.1 / 12.1 | 24.49 | 10.16 | 7.60 |
| B 14.7 / 17.4 | 24.80 | 12.20 | 9.45 |
Applications
| Types of fluid | coolants cooling/cutting oils Oils |
| Kinematic viscosity | 4.6...200 SSU (1...45 mm²/s) higher viscosity upon request |
| Max. air content | 3 - 5 vol. % |
| Pumping temperature | max. 140 °F (60° C) higher temperatures upon request |
| Recommended filtration levels | General Machining (Turning, milling, drilling) < 50 µm Grinding and machining of aluminum < 20 µm For additional information please refer to mechanical features within the technical information section. |
Construction
| Pressure and | Cast iron |
| Spindle Housing | Silicon Carbide, one-piece, highly wear resistant and precision |
| Screw spindles | Hardened tool steel specially treated, alloy; highly wear resistant and precision ground |
| Gasket | Viton ® |
| Motor 2-poles rotation speed 2900 min-1 |
Motor 4-poles rotation speed 1450 min-1 |
||||||||||||||
| Pressure max. | Flow at viscosity | Power consumption of viscosity | Motor | Weight | Flow at viscosity | Power consumption of viscosity | Motor | Weight | |||||||
| 5 SSU | 90 SSU | 5 SSU | 90 SSU | 5 SSU | 90 SSU | 5 SSU | 90 SSU | ||||||||
| Type / bar / PSI | GPM | GPM | HP | HP | HP | Lbs | GPM | GPM | HP | HP | HP | Lbs | |||
| BFS232/ | QTh1)6.9 | - | - | - | - | QTh1)3.5 | - | - | - | - | |||||
|
6.4 | 6.7 | 0.9 | 1.1 | B 1.7 | 88 | 3.0 | 3.3 | 0.4 | 0.7 | 1 | 68 | |||
|
6.2 | 6.7 | 1.5 | 1.7 | B 2 | 88 | 2.8 | 3.2 | 0.8 | 0.9 | 1.5 | 73 | |||
|
6.1 | 6.6 | 2.0 | 2.3 | B 2.5 | 99 | 2.6 | 3.1 | 1.1 | 1.2 | 1.5 | 73 | |||
|
5.9 | 6.5 | 2.7 | 3.0 | B 3.5 | 101 | 2.5 | 3.1 | 1.3 | 1.6 | 2 | 77 | |||
|
5.8 | 6.4 | 3.2 | 3.6 | B 4 | 128 | 2.3 | 3.0 | 1.6 | 1.9 | 2 | 77 | |||
|
5.6 | 6.4 | 3.8 | 4.2 | B 4.4 | 128 | 2.2 | 2.9 | 1.9 | 2.1 | 3 | 101 | |||
|
5.4 | 6.3 | 4.4 | 4.8 | B 5.4 | 130 | 2.0 | 2.9 | 2.3 | 2.5 | 3 | 101 | |||
|
5.3 | 6.2 | 5.0 | 5.4 | B 6.7 | 141 | 1.8 | 2.8 | 2.5 | 2.8 | 3 | 101 | |||
|
5.2 | 6.2 | 5.5 | 6.0 | B 6.7 | 141 | 1.7 | 2.7 | 2.8 | 3.1 | 4 | 101 | |||
|
5.0 | 6.1 | 6.2 | 6.6 | B 7.4 | 141 | 1.5 | 2.6 | 3.1 | 3.4 | 5.4 | 101 | |||
|
4.9 | 6.1 | 6.7 | 7.2 | B 7.4 | 165 | - | - | - | - | - | - | |||
|
4.7 | 6.0 | 7.4 | 7.8 | B 10 | 207 | - | - | - | - | - | - | |||
|
4.6 | 5.9 | 7.9 | 8.4 | B 10 | 207 | - | - | - | - | - | - | |||
|
4.4 | 5.8 | 8.4 | 9.0 | B 10 | 207 | - | - | - | - | - | - | |||
|
4.3 | 5.8 | 9.1 | 9.7 | B 10 | 207 | - | - | - | - | - | - | |||
| BFS238/ | QTh1)8.2 | - | - | - | - | QTh1)4.1 | - | - | - | - | |||||
|
7.6 | 8.0 | 0.9 | 0.9 | B 1.7 | 88 | 3.5 | 3.9 | 0.5 | 0.5 | 1 | 68 | |||
|
7.4 | 7.9 | 1.7 | 1.7 | B 2 | 88 | 3.3 | 3.8 | 0.8 | 0.8 | 1 | 68 | |||
|
7.2 | 7.8 | 2.4 | 2.4 | B 2.9 | 99 | 3.1 | 3.7 | 1.2 | 1.2 | 1.5 | 73 | |||
|
7.1 | 7.7 | 3.1 | 3.2 | B 3.5 | 101 | 3.0 | 3.6 | 1.6 | 1.6 | 2 | 77 | |||
|
6.9 | 7.6 | 3.8 | 3.9 | B 4.4 | 128 | 2.8 | 3.5 | 1.9 | 2.0 | 3 | 101 | |||
|
6.7 | 7.6 | 4.4 | 4.7 | B 5.4 | 130 | 2.6 | 3.5 | 2.3 | 2.4 | 3 | 101 | |||
|
6.5 | 7.5 | 5.1 | 5.4 | B 6.7 | 141 | 2.4 | 3.4 | 2.5 | 2.7 | 3 | 101 | |||
|
6.3 | 7.4 | 5.9 | 6.0 | B 6.7 | 141 | 2.2 | 3.3 | 3.0 | 3.1 | 4 | 101 | |||
|
6.1 | 7.3 | 6.6 | 6.8 | B 7.4 | 141 | 2.0 | 3.2 | 3.4 | 3.5 | 4 | 101 | |||
|
5.9 | 7.3 | 7.2 | 7.5 | B 8 | 192 | 1.8 | 3.2 | 3.6 | 3.9 | 4 | 101 | |||
|
5.8 | 7.2 | 7.9 | 8.3 | B 8.7 | 192 | - | - | - | - | - | - | |||
|
5.6 | 7.1 | 8.6 | 9.1 | B 10 | 207 | - | - | - | - | - | - | |||
|
5.4 | 7.1 | 9.3 | 9.8 | B 12.1 | 221 | - | - | - | - | - | - | |||
|
5.3 | 7.0 | 10.1 | 10.6 | B 12.1 | 221 | - | - | - | - | - | - | |||
|
5.1 | 6.9 | 10.7 | 11.3 | B 12.1 | 221 | - | - | - | - | - | - | |||
| BFS250/ | QTh1)10.8 | - | - | - | - | QTh1)5.4 | - | - | - | - | |||||
|
10.0 | 10.5 | 1.2 | 1.2 | B 1.7 | 88 | 4.6 | 5.1 | 0.7 | 0.7 | 1 | 68 | |||
|
9.8 | 10.4 | 2.1 | 2.1 | B 2.5 | 99 | 4.4 | 5.0 | 1.1 | 1.1 | 1.5 | 73 | |||
|
9.5 | 10.3 | 3.1 | 3.1 | B 3.5 | 101 | 4.1 | 4.9 | 1.6 | 1.6 | 2 | 77 | |||
|
9.3 | 10.2 | 4.0 | 4.2 | B 4.4 | 128 | 3.9 | 4.8 | 2.0 | 2.1 | 3 | 101 | |||
|
9.1 | 10.1 | 4.8 | 5.1 | B 5.4 | 130 | 3.7 | 4.7 | 2.4 | 2.5 | 3 | 101 | |||
|
8.9 | 10.0 | 5.8 | 6.0 | B 6.7 | 141 | 3.5 | 4.6 | 3.0 | 3.1 | 4 | 101 | |||
|
8.6 | 9.9 | 6.7 | 7.0 | B 7.4 | 141 | 3.2 | 4.5 | 3.4 | 3.5 | 4 | 101 | |||
|
8.4 | 9.8 | 7.6 | 7.9 | B 8.7 | 192 | 3.0 | 4.4 | 3.9 | 4.0 | 5.4 | 110 | |||
|
8.2 | 9.7 | 8.6 | 8.9 | B 10 | 207 | 2.8 | 4.3 | 4.3 | 4.4 | 5.4 | 110 | |||
|
8.1 | 9.6 | 9.4 | 9.9 | B 12.1 | 221 | 2.6 | 4.2 | 4.7 | 5.0 | 5.4 | 110 | |||
|
7.7 | 9.5 | 10.3 | 10.9 | B 12.1 | 221 | - | - | - | - | - | - | |||
|
7.4 | 9.4 | 11.3 | 11.8 | B 14.7 | 269 | - | - | - | - | - | - | |||
|
7.0 | 9.3 | 12.2 | 12.7 | B 14.7 | 269 | - | - | - | - | - | - | |||
|
6.7 | 9.2 | 13.1 | 13.7 | B 14.7 | 269 | - | - | - | - | - | - | |||
|
6.4 | 9.1 | 13.9 | 14.8 | B 17.4 | 269 | - | - | - | - | - | - | |||
| BFS260/ | QTh1)12.9 | - | - | - | - | QTh1)6.5 | - | - | - | - | |||||
|
12.0 | 12.5 | 1.3 | 1.5 | B 2.3 | 90 | 5.5 | 6.1 | 0.7 | 0.8 | 1 | 68 | |||
|
11.7 | 12.4 | 2.5 | 2.7 | B 3.5 | 101 | 5.3 | 5.9 | 1.2 | 1.3 | 2 | 77 | |||
|
11.4 | 12.2 | 3.6 | 3.9 | B 4.4 | 128 | 4.9 | 5.8 | 1.9 | 1.9 | 3 | 101 | |||
|
11.1 | 12.1 | 4.7 | 5.1 | B 6.7 | 141 | 4.6 | 5.6 | 2.4 | 2.5 | 3 | 101 | |||
|
10.8 | 11.9 | 5.8 | 6.2 | B 6.7 | 141 | 4.3 | 5.5 | 3.0 | 3.1 | 4 | 101 | |||
|
10.5 | 11.8 | 6.8 | 7.4 | B 8 | 192 | 4.0 | 5.3 | 3.5 | 3.8 | 5.4 | 101 | |||
|
10.2 | 11.6 | 7.9 | 8.6 | B 10 | 207 | 3.7 | 5.1 | 4.0 | 4.3 | 5.4 | 110 | |||
|
9.9 | 11.4 | 9.1 | 9.8 | B 12.1 | 221 | 3.4 | 5.0 | 4.6 | 5.0 | 7.5 | 110 | |||
|
9.6 | 11.3 | 10.2 | 10.9 | B 12.1 | 221 | 3.1 | 4.8 | 5.1 | 5.5 | 7.5 | 181 | |||
|
9.2 | 11.1 | 11.4 | 12.1 | B 14.7 | 269 | 2.8 | 4.6 | 5.8 | 6.0 | 7.5 | 181 | |||
|
8.8 | 10.9 | 12.5 | 13.3 | B 14.7 | 269 | - | - | - | - | - | - | |||
|
8.4 | 10.8 | 13.4 | 14.5 | B 14.7 | 269 | - | - | - | - | - | - | |||
|
8.0 | 10.4 | 14.6 | 15.7 | B 17.4 | 269 | - | - | - | - | - | - | |||
|
7.5 | 10.1 | 15.7 | 16.8 | B 17.4 | 269 | - | - | - | - | - | - | |||
1) QTh: Theoretical flow rate ; Viscosity > 90 SSU more power consumption.
Higher pressure for water soluble coolants (up to 2900 psi / 200 bar) upon request.