MPR engineers have written numerous ASME, EPRI and NRC technical papers related to valve operation and maintenance. Further, we have prepared hundreds of specific technical reports, papers and presentations with regard to valve problems for our clients. These documents include:

MOV Documents

1. Wang, J. K., M. S. Kalsi, D. H. Harrison, and P. S. Damerell, Gate Valve Performance Modeling, Fourth EPRI Valve Technology Symposium, Dallas, TX: August 11-13, 1992.

2. Hosler, J., P. Damerell, M. Eidson, and N. Estep, EPRI MOV Performance Prediction Program, Third NRC/ASME Symposium on Valve and Pump Testing, NUREG/CP-0137, pp. 323-334.

3. Harrison, D., P. Damerell, J. K. Wang, M. Kalsi, and K. Wolfe, Gate Valve Performance Prediction, Third NRC/ASME Symposium on Valve and Pump Testing, NUREG/CP-0137, pp. 371-389.

4. Bonner, S., R. Coward, P. Damerell, and K. Wolfe, Globe Valve Performance Prediction, Third NRC/ASME Symposium on Valve and Pump Testing," NUREG/CP-0137, pp. 423-437.

5. Damerell, P., S. Daubresse, K. Wolfe, T. Dogan, and J. Gleeson, Effects of Dynamic Loading of Motor-Operated Valve Actuators, Third NRC/ASME Symposium on Valve and Pump Testing, NUREG/CP-0137, pp. 439-457.

6. Damerell, P., and D. McGowan, Required Stem Thrust for Parallel Double Disk Gate Valve with Internal Wedge, Fifth EPRI Valve Technology Symposium, Albuquerque, NM: June 13-15, 1995.

7. Damerell, P., D. Harrison, P. Hayes, J. Simons, and T. Walker, Effects of Pressure and Temperature on Gate Valve Unwedging, Fourth NRC/ASME Symposium on Pump and Valve Testing, NUREG/CP-0152, pp. 3C-49 to 3C-71.

8. Walker, T., P. Damerell, B. Harry and S. Gates, Test Results and Torque Requirements for Crane Flowseal Butterfly Valves, MOV User's Group Meeting, Huntsville, AL: February 1996.

9. Walker, T. and Damerell, P., Use of the EPRI MOV Methods, MOV Users' Group Meeting, February 1997.

10. Walker, T., P. Knittle and P. Damerell, Performance of Balanced Disk Globe Valves, AOV Users Group Meeting, June 1998

11. Warren G., S. Loehlein, F. Winter and P. Damerell, The Joint Owners Group Program for Motor-Operated Valve Periodic Verification, Fifth NRC/ASME Symposium on Valve and Pump Testing, NUREG/CP-0152, pp. 3A-23 to 3A-45.

12. Walker, T. and P. Damerell, Experience and Benefits From Using the EPRI Motor-Operated Valve Performance Prediction Methodology in Nuclear Power Plants, Fifth NRC/ASME Symposium on Valve and Pump Testing, NUREG/CP-0152, pp. 2A-11 to 2A-24.

13. Walker, T. and Burns, S., Gate Valve Thrust Uncertainty Method For EPRI MOV Performance Prediction Methodology (PPM), NRC/ASME Symposium on Valve and Pump Testing, May 1999.

14. Knittle, P. and Walker, T., Improved Method for Predicting Thrust in Balanced Disk Globe Valves, NRC/ASME Symposium on Valve and Pump Testing, July 2000.

15. Hosler, J and Walker, T., PPM For Windows, Air-Operated Valve Users' Group, June 2000.

16. Walker, T. and Burns, S., Lessons Learned in Plant AOV Programs, Air-Operated Valve Users' Group, June 2000.

17. Walker, T., et al., Predicting Capability and Stroke Time in dc Motor-Operated Valves, Sixth NRC/ASME Symposium on Valve and Pump Testing, NUREG/CP-0152, Volume 3, pp. 2B-37 to 2B-50.

AOV Documents

1. Caron, D, Walker, T., Knittle, P., et al., Air-Operated Valve Evaluation Guide, EPRI TR-107322, May 1999.

2. Walker, T., S. Burns and A. Wang, Guide for Evaluating Air-Operated Valve Uncertainties and Actuator Setup Parameters, EPRI 1006555, November 2001.

3. Walker, T. and Burns, S., Lessons Learned in Plant AOV Programs, Air-Operated Valve Users' Group, June 2000.

4. Walker, T., AOV Setup Parameters, Air-Operated Valve Users' Group, January 2001.

5. Walker, T., AOV Margins and Uncertainties, Air-Operated Valve Users' Group, January 2002.