Bray 40_41 - Manual (Page 12)

Bray/McCannalok HPBV – Dynamic Torques
All information herein is proprietary and confidential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc.
The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application. Dynamic : 12
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Angle of Opening
Ct Down
0.15
0.10
0.05
0
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
-0.35
-0.40
Figure 4. Ct values with the Seat Retainer Up Stream
McCannalok Dynamic Torque Coefficient
Seat Retainer Upstream
Dynamic T
or
que
Coefficient
Dynamic T
or
que
Coefficient
0˚ 10˚ 15˚ 20˚ 25˚ 30˚ 35˚ 40˚ 45˚ 50˚ 55˚ 60˚ 65˚ 70˚ 75˚ 80˚ 85˚ 90˚
.012 .0 .022 .031 .044 .058 .073 .088 .114 .141 .176 .212 .260 .308 .370 .431 .496 .362
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
Figure 3. Ct values with the Seat Retainer Down Stream
McCannalok Dynamic Torque Coefficient
Seat Retainer Downstream
Angle of Opening
Ct up
0˚ 10˚ 15˚ 20˚ 25˚ 30˚ 35˚ 40˚ 45˚ 50˚ 55˚ 60˚ 65˚ 70˚ 75˚ 80˚ 85˚ 90˚
.015 .0 .018 .020 .023 .027 .037 .046 .055 .063 .078 .086 .093 .100 .084 .032 -.17 -.37