Coupling Housing Alignment ProjectSundyne Corporation

August 2008

LMV-801Max Flow: 380 gpm

Max Head: 720’

LMV-802Max Flow: 150 gpm

Max Head: 210’

LMV-806Max Flow: 380 gpm

Max Head: 760’

LMV-322Max Flow: 230 gpmMax Head: 3,000’

LMV-311Max Flow: 400 gpmMax Head: 6,300’

• Visit from Dennis Schrumpf / Matt Schaeffer, ConocoPhillips Wood River in January 2008

– Request of improvements with alignment of driver to pump.

– Request for elimination of dowel pinning or reworking procedures.

– Request was specific to Sundyne OH3 Bearing Box Pump (Sundyne LMV-80x Series).

– LMV 80x pumps shown in earlier slides are API OH5 designs with the impeller mounted directly on the driver shaft. Add a bearing housing (bearing box) to convert to OH3 design.

Timeline of Events

• Request for improvement well timed with Bearing Box redesign.

Bearing Box Change

Sundyne Bearing Housing for OH3 Design

• API OH3 Compliant• Back-to-Back Angular Contact

Bearings• More Modular

– Uses same coupling housing as Gear-Driven Units

Overview of Bearing Box Changes

Coupling Housing Change

• Previous Design:Fabricated from Steel

• New Design:Cast Aluminum

• Request for Improved Alignment Well Timed:– New Design Being Implemented

• One Piece Casting– All configurations with 3 castings– Ability to hold high tolerances

• Aluminum (Light Weight)• Non-Sparking• All DBSE Problems Addressed• Coupling Alignment Issues

Addressed

Overview of Coupling Housing Changes

Coupling Alignment Fix

• Change was Implemented Across All Sundyne LMxProducts – Direct Drive and Gear Driven– Fix was considered a global

product improvement.

Proposed Changes• Change:

– Dimensions– Tolerances

• 0.005 Unilateral to 0.004 Equilateral

Bearing Box / Gearbox

Coupling Housing

MotorNominal – 0.0015

±0.002

Nominal + 0.0015±0.002

Nominal – 0.0015±0.002

HO13AA03HO13AA04HO13AB03

HO06AA16HO06AA19HO06AB01HO06AA05HO06AG04HO06AW03

• To Date:– Data taken on 4 sets of

hardware, 16 combinations.– Data as Follows:

TIR Conc TIR AngAvg 0.007125 0.002625Max 0.014 0.005Min 0.0015 0.0005

Preliminary Results

TIR Conc TIR AngAvg 0.005542 0.002417Max 0.011 0.005Min 0.0015 0.0005

• To Date:– One housing appears to give

consistently bad values.– Inspection being performed to

determine cause. Without housing, data as follows:

Preliminary Results

• Sundyne feels confident it can achieve:

TIR Conc. TIR Ang.Avg. 0.005 0.003Max 0.010 0.005

• Future Plans: – Evaluate Per PN 41.25-52 30

units to see actual results– Revise, if necessary, assumptions

and design to achieve goal

Preliminary Results

• Process note 41.25-52 attached• ISO Form 2910 attached

– Alignment Verification Report – Included in Final Documentation

Documentation

Sundyne Process Note PN41.25-52

Sundyne Process Note PN41.25-52

Typical Coupling Drawing

Conclusion

Questions?