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

2014 MRO Technical Conference & Workshop Intro Text

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

Fluid flow dynamics for sealed slurry pumps

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

Fluid flow dynamics for sealed slurry pumps

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

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

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

Dirty Gland Water affects traditional Lantern Restrictors Low Flow Lantern Restrictor

Dirty Gland Water affects traditional Lantern Restrictors Low Flow Lantern Restrictor

Dirty Gland Water affects traditional Lantern Restrictors Low Flow Lantern Restrictor

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

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

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

“Active Throat Bushing” – Mechanical Seals

Computational Fluid Dynamics – Mechanical Seal Visual Active Throat Bushing

Slurry Pump – Seal Cavity with “Active Throat Bushing”

Active Throat Bushing – Operating with a Mechanical Seal

Regular Stuffing Box Active Throat Bushing

“Active Throat Bushing” – Mechanical Packing

Computational Fluid Dynamics – Mechanical Packing Visual Active Throat Bushing

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

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

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

Typical flush rates based on shaft size with Active Throat Bushing

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

2014 MRO Technical Conference & Workshop Questions?