2. Gland Water requirements.
2014 MRO Technical Conference & Workshop
How to increase Slurry Pump seal and packing reliability while reducing
Gland Water requirements.

3. 2014 MRO Technical Conference & Workshop
Intro Text

4. Fluid flow dynamics for packed and sealed slurry pumps
Packed Stuffing Box
Mechanical Seal

5. Fluid flow dynamics for sealed slurry pumps

6. Fluid flow dynamics for sealed slurry pumps
15 ft/sec Velocity

7. Fluid flow dynamics for sealed slurry pumps

8. Fluid flow dynamics for packed and sealed slurry pumps
15 ft/sec Velocity

9. Slurry Pump Lantern Restrictors
Metal Lantern
Restrictor
1. Full Flow
Non-Metal Lantern
Restrictor
2. Low Flow
Lantern Ring
3. Ultra Low Flow
Neck Ring

10. Slurry Pump Lantern Restrictors
Metal Lantern
Restrictor
4. Forward Flush
Non-Metal or Metal Lantern
Restrictor
5. Low Flow
6. Throat Bushing
Bushing

11. Dirty Gland Water affects traditional Lantern Restrictors
Low Flow Lantern Restrictor

12. Dirty Gland Water affects traditional Lantern Restrictors
Low Flow Lantern Restrictor

13. Dirty Gland Water affects traditional Lantern Restrictors
Low Flow Lantern Restrictor

14. Flow Past Bushing Calculations
Radial Clearance of .003” (.006” total) – Flowrate Past Bushing = 0.80 GPM

15. Flow Past Bushing Calculations
Radial Clearance of .004” (.008” total) – Flowrate Past Bushing = 2.07 GPM

16. Flow Past Bushing Calculations
Radial Clearance of .005” (.010” total) – Flowrate Past Bushing = 4.27 GPM

17. “Active Throat Bushing” – Mechanical Seals

18. Computational Fluid Dynamics – Mechanical Seal Visual
Active Throat Bushing

19. Slurry Pump – Seal Cavity with “Active Throat Bushing”

20. Active Throat Bushing – Operating with a Mechanical Seal

21. Regular Stuffing Box
Active Throat Bushing

22. “Active Throat Bushing” – Mechanical Packing

23. Computational Fluid Dynamics – Mechanical Packing Visual
Active Throat Bushing

24. Computational Fluid Dynamics – Mechanical Packing Visual
Channel 1 flow vectors and contours at 0-deg position

25. Computational Fluid Dynamics – Mechanical Packing Visual
Channel 1 flow vectors and contours at Port 1

26. Computational Fluid Dynamics – Mechanical Packing Visual
1 gpm
1750 rpm
flow
Geometry 1 pressure contours displayed on bushing/groove flow surfaces (psi)

27. Typical flush rates based on shaft size with Active Throat Bushing

28. Active Throat Bushing – Packing and Seal Solution
Packed Stuffing Box
Mechanical Seal

29. 2014 MRO Technical Conference & Workshop
Questions?