Valves are a fundamental part of most hydraulic systems. When properly selected, they can provide many years of trouble-free operation controlling flow or pressure, controlling transients, handling trapped air problems, preventing backflow, avoiding cavitation, noise and vibrations and many other tasks. However, all too often, valves create operational problems.

Valves

Publications










Books

  • Section 3.4 -"Hydraulics of Pipe Systems". The Handbook of Mechanical Engineering, ed. Frank Krieth and D. Yogi Goswami, CRC Press 2004, pgs. 3-40 to 3-65 (J. Paul Tullis and Blake. P. Tullis)
  • Section 40 - Valves, (2004). The Engineering Handbook, Second Edition, ed. Richard C. Dorf, CRC Press. January, pgs. 40-1 to 40-40. (Blake P. Tullis and J. Paul Tullis)
  • Section 2.4 "Hydraulics of Pipe Systems" The CRC Handbook of Thermal Engineering, ed. Frank Krieth, CRC Press LLC 2000, pgs 2-44 to 2-60. (J. Paul Tullis)
  • Chapter 4, "Hydraulics of Pipe Systems"Fluid Mechanics, ed. Frank Krieth, CRC Press LLC 2000, pages 47-63.(J. Paul Tullis)
  • Section 3.4 - Hydraulics of Pipe Systems, (1998). The Handbook of Mechanical Engineering, ed. Frank Krieth, CRC Press., pgs. 3-44 to3-60. (J. Paul Tullis)
  • Section 38 - Valves, (1996). The Engineering Handbook, ed. Richard C. Dorf, CRC Press. January, pgs. 403-408. (J. Paul Tullis)
  • Control Valve Cavitation Guide. NUREG/CR-6031. Prepared for the Nuclear Regulatory Commission (NRC), 1993. (J. Paul Tullis)
  • Application Guidelines for Check Valves in Nuclear Power Plants. Electric Power Research Institute, 1993. (Kalsi Engineering, Inc., and J. Paul Tullis)
  • Hydraulics of Pipelines--Pumps, Valves, Cavitation, Transients. John Wiley & Sons 1989. (J. Paul Tullis)
  • Closed Conduit Hydraulics. Utah State University, Logan, UT, 1982. (J. Paul Tullis)
  • Cavitation in Hydraulic Systems. Sao Paulo, Brazil, July 1982, (for short course) (J. Paul Tullis)
  • Control of Flow in Closed Conduits. Litho-Crafters, Ann Arbor, Michigan, 1971, 557 p. (J. Paul Tullis, ed.)

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Refereed Journal Publications

  • Modeling Cavitation for Closed Conduit Flow. Journal of the Hydraulics Division, Proceedings of the American Society of Civil Engineers, ASCE, Vol. 107, No. HY11, November 1981. (J. Paul Tullis)
  • Cavitation Limits for Butterfly Valves. Presented and published in Cavitation Erosion in Fluid Systems, ASME, June 1981. (W. J. Rahmeyer, and J. Paul Tullis)
  • Cavitation in Butterfly Valves. Journal of the Hydraulics Division, ASCE, Vol. 99, No. HY9, Proc. Paper 9993, September, 1973, pp. 1303-1318. (J. W. Ball and J. Paul Tullis)
  • Cavitation Scale Effects for Valves. Journal of the Hydraulics Division, ASCE, Vol. 99, No. HY7, Proc. Paper 9874, July, 1973, pp. 1109-1128. (J. Paul Tullis)
  • Cavitation and Size Scale Effects for Orifices. Journal of the Hydraulics Division, ASCE, Vol. 99, No. HY3, Proc. Paper 9605, March, 1973, pp. 417-430. (J. Paul Tullis and R. Govindarajan)
  • Choking and Supercavitating Valves. Journal of the Hydraulics Division, ASCE, Vol. 97, No. HY12, Proc. Paper 8593, December, 1971, pp. 1931- 1945. (J. Paul Tullis)
  • Needle Valves as Pressure Regulators. Journal of the Hydraulics Division, ASCE, Vol. 95, No. HY5, Proc. Paper 6787, September, 1969, pp. 1633-1649. (J. Paul Tullis and M. L. Albertson)
  • Reducing Cavitation in Valves. Journal of the Hydraulics Division, ASCE, Vol. 94, No. HY6, Proc. Paper 6255, November, 1968, pp. 1475- 1488. (J. Paul Tullis and M. M. Skinner)
  • A Review of Cavitation Research on Valves. Journal of the Hydraulics Division, ASCE, Vol.94, No. HY1, Pro. Paper 5705, January, 1968, pp. 1-16. (J. Paul Tullis and B. W. Marschner)

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Journal Discussions

  • Cavitation Parameters for Outlet Valves. Journal of the Hydraulics Division, ASCE, Vol. 97, No. HY9, September 1971, pp. 1547-1552. (J. Paul Tullis)
  • Flow and Cavitation Characteristics of Control Valves. Journal of the Institution of Water Engineers, Vol. 23, No. 7, October 1969, London. (J. Paul Tullis)
  • Flow Characteristics of Butterfly and Spherical Valves. Journal of the Hydraulics Division, ASCE, Vol. 95, No. HY1, 1969. pp. 557-559. (J. Paul Tullis)
  • Fluctuations of Pressure in Conduit Expansions. Journal of the Hydraulics Division, ASCE, Vol. 93, No. HY3, 1967, pp. 197-201. (J. Paul Tullis and Maurice L. Albertson)

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Conference Proceedings

  • Valve Selection and Application, Key note address at the International Conference on Pumps, Electromechanical Devices and Systems, April 21-24, 2003, Valencia Spain (J. Paul Tullis)
  • Selecting Controls for Water Distribution Systems. Presented at the International Conference on "Hydraulics of Pipelines", June 12-15, 1994, Phoenix, Arizona. (J. Paul Tullis)
  • Selection and Use of Control Devices in Water Distribution Networks. Presented at the International Conference on "Water Supply Systems State of the Art and Future Trends," October 13-19, 1992, Valencia, Spain. (J. Paul Tullis)
  • Cavitation Damage Characteristics of Valves. Proceedings of the ASME Conference on "Pressure Vessels and Piping," June 19-23, 1988, Pittsburgh, Pennsylvania. (J. Paul Tullis)
  • Valve Sizing to Avoid Cavitation. Proceedings of the Symposium on "EPRI Power Plant Valves", August 1987, Palo Alto, California. (J. Paul Tullis)
  • Modifications based on Stability and Wear Studies. Presented at the INPO "Check Valve Workshop," October 29-31, 1986, Atlanta, Georgia. (Jeff Statton, Brian Watts, and J. Paul Tullis )
  • Cavitation in Cone Valves. Proceedings of the ASCE Conference on "Advancements in Aerodynamics, Fluid Mechanics, and Hydraulics," June 3-6, 1986, Minneapolis, Minnesota. (Bart L. Mumford and J. Paul Tullis)
  • Aeration Scale Effects (for cavitating valves). In "Frontiers in Hydraulic Engineering" edited by Hung Tao Shen, p. 413-418, 1983. (Eric S. Clyde and J. Paul Tullis)
  • Cavitation-Free, High Energy Loss Valve. Presented at National Engineering Laboratory Silver Jubilee Conference, Glasgow, Scotland, November 1979. (R. W. Barnes, J. Paul Tullis, and B. Dewart)
  • Modeling Cavitation for Closed Conduit Flow. Presented at the 24th Annual ASCE Hydraulics Division Specialty Conference, Purdue University, W. Lafayette, Indiana, August 4-6, 1976. (James W. Ball and J. Paul Tullis)
  • Incipient Cavitation Damage and Scale Effects for Sudden Enlargement Energy Dissipators. Presented at the ASCE Hydraulics Division Specialty Conference, Knoxville, Tennessee, July 31-August 3, 1974. (J. W. Ball, J. Paul Tullis, and T. E. Stripling)
  • Cavitation Data for Valves and Its Application. Proceedings for the Conference on Cavitation, The Institution of Mechanical Engineers, Heriot-Watt University, Edinburgh, Scotland, September 3-5, 1974. pp. 55-63. (J. Paul Tullis and James W. Ball)
  • Testing Valves for Cavitation. Proceedings for the Conference on Cavitation, The Institution of Mechanical Engineers, Heriot-Watt University, Edinburgh, Scotland, September 3-5, 1974, pp. 45-54. (J. Paul Tullis)
  • Application of Cavitation Information for Design and Analysis of Closed Conduit Systems. Presented at the Institute on Control of Flow in Closed Conduits, Colorado State University, Fort Collins, Colorado, August 9-14, 1970. (J. Paul Tullis)
  • Predicting Cavitation in Valves. Presented at the IAHR Symposium, Stockholm, Sweden, Transactions, IAHR, Part 1, G5, August, 1970. (J. Paul Tullis, R. A. Hoggan, and N. C. Whittington)
  • Flow Characteristics of Valves. Presented at the IAHR Symposium at Lausanne, Switzerland, September, 1968, pp. H1 3/1 - 3/12. (J. Paul Tullis, M. L. Albertson, and B. W. Marschner)

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Consulting Reports and Unpublished Papers (Partial listing)

  • Design of Gate Structure and Energy Dissipator for Piute Dam, Franson Noble, Springville, UT, Feb, 2003, (J. Paul Tullis)
  • Design Review of avitation in the Arresting Gear Valve Assembly for Aircraft Carrier Landing System, Marotta Scientific Controlls, Montville NJ, Feb. 2003, (J. Paul Tullis)
  • Evaluation of Injector Nozzle Cavitation, Prepared for Caterpillar, Pontiac IL. May, 2002, (J. Paul Tullis)
  • Cavitation analysis of Plug Valves for Swan Island Pump Station, Portland OR., Carollo Engineers, Nov. 2001 - July 2002, (J. Paul Tullis)
  • Analysis of Pressure Relief Valve Mal-function Leading to the Failure of the Olympic Pipeline. Prepared for Susman Godfrey LLP and Jacobs Engineering Feb 2002, (J. Paul Tullis)
  • Evaluation of Cavitating Orifices at a Nuclear Power Plant in Korea, Prepared for Westinghouse, May 2001, (J. Paul Tullis)
  • Comanche Peak 18" Butterfly Valve Cavitation Analysis. Prepared for Altran Corp. Oct. 2000, (J. Paul Tullis)
  • Safe Closing and Opening Times for Pipeline Valves. Prepared for San Francisco Public Utilities Commission, Sept. 2000 (J. Paul Tullis)
  • Analysis of the Yanbu-Madina Pipeline Ball Vaves. Prepared for the Techint, Saudi Arabia, July 2000. (J. Paul Tullis)
  • Safe Closing and Opening Times for Pipeline Valves. Prepared for San Francisco Public Utilities Commission, Sept. 2000 (J. Paul Tullis)
  • Analysis of the Yanbu-Madina Pipeline Ball Vaves. Prepared for the Techint, Saudi Arabia, July 2000. (J. Paul Tullis)
  • Cavitation in Closed Conduits. Presented to the Boston section of ASCE, January 1980. (J. Paul Tullis)
  • Design of a Pressure-Reducing Structure for the Soldier Canyon Water Treatment Plant. Report prepared for the City of Fort Collins CO., March 1974. (J. Paul Tullis)
  • Predicted Cavitation Performance and Testing Procedures for 60-Inch Butterfly Valves. Report prepared for the Department of the Army Waterways Experiment Station Corps of Engineers, Vicksburg, Mississippi, March 1974. (J. Paul Tullis)
  • Cavitation and Vibration Analysis of a 3-Meter Butterfly Valve. Prepared for Rockwell International, August, 1973. (J. Paul Tullis)
  • Cavitation Characteristics of Ball and Butterfly Valves. Presented at the ASCE Annual Meeting and National Meeting on Environmental Engineering, Chicago, Illinois, October 1969. (Raymond A. Hogan and J. Paul Tullis)
  • Recommended Modifications to the Cheesman Outlet Works. Prepared for Denver Board of Water Commissioners, Denver, Colorado, September 1969. (J. Paul Tullis, M. L. Albertson and Sellards and Grigg, Inc.)
  • Study of the Raw Water Throttling Valves at Ralston Treatment Plant. Prepared for the City of Arvada, Colorado, February 1969. (J. Paul Tullis, Sellards and Grigg, Inc.)
  • Proposed Modifications to the Gross Dam Outlet Works. Prepared for Denver Board of Water Commissioners, Denver, Colorado, November 1968. (M. L. Albertson, J. Paul Tullis, and Sellards and Grigg, Inc.)

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Valve Reports (Utah State University)

  • Hydraulic Testing of a 6-Inch Fixed Cone Valve. Conducted for Hartman Valve Corp. March 1997. (Robert E. O'Dell and J. Paul Tullis)
  • Evaluation of Nonintrusive Diagnostic Technologies for Check Valves (NIC-03-STEAM). March 1996. (J. Paul Tullis)
  • Evaluation of Nonintrusive Diagnostic Technologies for Check Valves (NIC-02-AIR). February, 1993. (J. Paul Tullis)
  • Evaluation of Nonintrusive Diagnostic Technologies for Check Valves (NIC-01). Volume 1, Summary. February 1991. (J. Paul Tullis, W.J. Rahmeyer, Muin S. Baasiri and Steven L. Barfuss)
  • 2-1/2-inch Angle Lift Check Valve Test. Conducted for Anchor/Darling. April 1996. (Steven L. Barfuss and J. Paul Tullis)
  • Flow and Pressure Drop Tests for a 24-inch Komax Mixer. Conducted for Komax Systems. February 1996. (J. Paul Tullis and Steven L. Barfuss)
  • Calibration of 14-inch Sleeve Valve. Conducted for Lindsey Fabricators. September 1995. (J. Paul Tullis)
  • Flow Calibration of a Cla-Val 24-inch Globe Valve. Conducted for Cla-Val Company. June 1995. (J. Paul Tullis, Steven L. Barfuss)
  • Performance Flow Tests on a Three-Inch 300 lb. Globe Valve. Conducted for Anchor/Darling Valve Co. July 1994. (Steven L. Barfuss, and J. Paul Tullis)
  • Flow and Torque Tests on 8- and 30-inch C & S Butterfly Valves. Conducted for Duke Power, C & S Valve Company and Vectra, March 1994. (J. Paul Tullis, and Steven L. Barfuss)
  • Model Study of a 14-inch Sleeve Valve. Conducted for Kvaerner Hydro Power, April 1994. (J. Paul Tullis, and Steven L. Barfuss)
  • Cavitation Testing of a Singer 6-inch 100-PG-AG Power Operated Globe. Conducted for Singer Valve Co., November 1993. (Michael C. Johnson, and J. Paul Tullis)
  • Flow Calibration of a 6-inch Check Valve, Serial #ET491-1-1. Conducted for Anchor Darling Valve Co., November 1993. (Steven L. Barfuss, and J. Paul Tullis)
  • Calibration of a 6-inch Swing Check Valve. Conducted for Anchor Darling Valve Co., November, 1993. (Steven L. Barfuss, and J. Paul Tullis)
  • Cavitation Analysis of the Isolation Valve at Kirkwood Power Plant. Conducted for Hetch Hetchy Water District, October, 1993. (J. Paul Tullis)
  • Analysis of Moccasin By-Pass Valves. Conducted for City of San Francisco Public Utilities Commission, May 13, 1993. (J. Paul Tullis)
  • Testing of 10" and 42" Fisher (Posi-Seal) Butterfly Valves. Conducted for Fisher Controls and Duke Power Company, March 1993. (J. Paul Tullis)
  • Calibration of a 28" Globe Valve. Conducted for Cla-Val, February 1993. (J. Paul Tullis)
  • -Inch Anchor Darling Check Valve. Conducted for Duke Power, June 1992. (J. Paul Tullis)
  • Calibration of 1.5-inch and 2-inch Orifice Plates. Conducted for New York Power Authority, April 1992. (J. Paul Tullis)
  • Hydraulic Testing of a 12-inch Swing Check Valve. Conducted for Atwood and Morrill Co., Inc., February 1992. (J. Paul Tullis and Steven L. Barfuss)
  • Hydraulic Tests on APCO Check Valves and Control Valves. Conducted for APCO Valve and Primer Corporation, November 1991. (J. Paul Tullis)
  • Flow and Torque Tests on a 24-inch Butterfly Valve. Conducted for ENPRO Systems Inc., June 1991. (J. Paul Tullis)
  • Flow Testing of 1.5-inch Piston Check Globe Valve. Conducted for Anchor/Darling Valve Company, May 1991. (J. Paul Tullis)
  • Flow and Torque Tests on a 12-inch Ball Valve. Conducted for Hartman Valve Company, May 1991. (J. Paul Tullis)
  • Hydraulic Testing of a 14-inch Y-Pattern Lift Check Valve. Conducted for Anchor/Darling Valve Company, September 1990. (J. Paul Tullis and Steven L. Barfuss)
  • Evaluation of Non-Intrusive Diagnostic Technologies for Check Valves. Conducted for NIC/EPRI, August 1990. (J. Paul Tullis and William J. Rahmeyer)
  • A Model Study of Control Valves for Lake Youngs Dam. Conducted for Ebasco, May 1990. (J. Paul Tullis and Blake P. Tullis)
  • Flow, Cavitation, Torque and Performance Tests on a 16-inch Ball Valve. Conducted for Williamette Valve Co., January 1990. (Blake P. Tullis, Muin Baasiri and J. Paul Tullis)
  • Hydraulic Testing of a 12-inch Sleeve Valve. Conducted for Hartman Valve Company, October 1989. (J. Paul Tullis)
  • Performance Flow Tests on an 8-inch 600 lb. Globe Valve. Conducted for Anchor/Darling Valve Co., July 1989. (J. Paul Tullis)
  • Performance Flow Tests on an 8-inch 600 lb. Globe Valve. Conducted for Anchor/Darling Valve Co., May 1989. (J. Paul Tullis)
  • Flow Calibration, Cavitation and Sound Tests of a 2-inch 1878 lb. Reduce Port Globe Valve. Conducted for Anchor/Darling Valve Co., March 1989. (J. Paul Tullis)
  • Flow Calibration, Cavitation and Sound Tests of a 2-foot 1878 lb. Full Port Globe Valve. Conducted for Anchor/Darling Valve Co., March 1989. (J. Paul Tullis)
  • Calibration of 6-inch Free Discharge Valve. Conducted for Hartman Valve Corporation, February 1989. (J. Paul Tullis, and Steven L. Barfuss)
  • Gate Valve Tests. Conducted for Stockham Valve Company, January 1988. (J. Paul Tullis)
  • Pipeline and Pumpstation Analysis. Conducted for Northglenn City, Colorado, May 1988. (J. Paul Tullis)
  • Yough Hydro Model Study. Conducted for D/R Hydro, March 1988. (J. Paul Tullis)
  • Control Valve Calibrations. Conducted for Ross Valve Manufacturing Company, December 1987. (Steven L. Barfuss and J. Paul Tullis)
  • Control Valve Calibrations. Conducted for Ross Valve Manufacturing Company, December 1987. (Steven L. Barfuss and J. Paul Tullis)
  • Globe Valve Tests. Conducted for Anchor/Darling Valve Company, November 1987. (J. Paul Tullis and Steven L. Barfuss)
  • Hytrol Valve Cavitation Tests. Conducted for Cla-Val Company, November 1987. (J. Paul Tullis and Blake P. Tullis)
  • Fire Hydrant Calibration. Conducted for Long Beach Iron Works, Inc., October 1987. (J. Paul Tullis and Blake P. Tullis)
  • Fire Hydrant Calibration. Conducted for Long Beach Iron Works, Inc., October 1987. (J. Paul Tullis and Blake P. Tullis)
  • Fire Hydrant Calibration. Conducted for Long Beach Iron Works, Inc., October 1987. (J. Paul Tullis and Blake P. Tullis)
  • Calibration of a Model B125N Fire Hydrant With Clutch Assemblies. Conducted for Long Beach Iron Works, Inc., September 1987. (J. Paul Tullis and Blake P. Tullis)
  • Calibration of a Model B125N/110N Fire Hydrant. Conducted for Long Beach Iron Works, Inc., September 1987. (J. Paul Tullis and Blake P. Tullis)
  • Calibration of a Model B125N Fire Hydrant. Conducted for Long Beach Iron Works, Inc., September 1987. (J. Paul Tullis and Blake P. Tullis)
  • Calibration of a Model B125 Fire Hydrant. Conducted for Long Beach Iron Works, Inc., September 1987. (J. Paul Tullis and Blake P. Tullis)
  • Flow Calibration, Cavitation and South Tests of a 0.5 inch 1878# Globe Valve. Conducted for Anchor/Darling Valve Company, August 1987. (J. Paul Tullis and Blake P. Tullis)
  • Performance Tests of a Hartman 14" x 16" Split Volute Multijet Sleeve Valve. Conducted for Progressive Fabricators/Hartman Valve Corp (Joint Venture), June 1987. (J. Paul Tullis)
  • Flow Calibration, Cavitation, and Sound Tests of a 1.5", 1878# Swing Check Value. Conducted for Anchor/Darling Valve Company, December 1986. (J. Paul Tullis)
  • Flow Calibration, Cavitation, and Sound Tests of a 1.5", 1700# Double Disc Gate Valve. Conducted for Anchor/Darling Valve Company, December 1986. (J. Paul Tullis)
  • Flow Calibration, Cavitation, and Sound Tests on a 10", 300 lb. Globe Valve with Standard Disc. Conducted for Anchor/Darling Valve Company, October 1986. (J. Paul Tullis)
  • Flow Calibration, Cavitation, and Sound Tests on a 10", 300 lb. Globe Valve with Parabolic Disc. Conducted for Anchor/Darling Valve Company, October 1986. (J. Paul Tullis)
  • Performance Tests on the Feed Water Check Valves for the San Onofre Unit I Nuclear Power Plant, Phase B. Conducted for Bechtel Power Corporation, Norwalk, California, January 1987. (J. Paul Tullis)
  • Performance Tests on the Feed Water Check Valves for the San Onofre Unit I Nuclear Power Plan Phase A. Conducted for Bechtel Power Corporation, Norwalk, CA, May 1986. (J. Paul Tullis and William J. Rahmeyer)
  • Qualification Testing of 4 and 8 Inch Butterfly Valves. Conducted for XOMOX Corporation, August 1985. (J. Paul Tullis)
  • Performance Test of an 8" Gate Valve. Conducted for Mueller Valve Company, April 1985. (J. Paul Tullis)
  • Qualification Testing of 4, 8, and 14 Inch Butterfly Valves. Conducted for XOMOX Corporation, February 1985. (J. Paul Tullis)
  • Calibration of a 16 x 20 Inch Channelstream Angle Valve. Conducted for Valtek, Springville, Utah. (J. Paul Tullis)
  • Performance Test of an 8" Gate Valve. Conducted for Mueller Valve Company, December 1984. (J. Paul Tullis)
  • Seat Performance Tests of a 14-Inch Class 250 Cone Valve. Conducted for McNally-Pittsburg Corporation, November 1984. (J. Paul Tullis)
  • Cavitation Intensity Testing on a Sectional Model of Channelstream Valve. Conducted for Valtek and Carolina Power and Light, October 1984. (J. Paul Tullis)
  • Cavitation, Sound, Torque and Cv Tests on a 6" Butterfly Valve. Conducted for Copes-Vulcan, July 1984. (J. Paul Tullis)
  • Seat Performance Tests on 24" Butterfly Valves. Conducted for Mueller Valve Company, January 1984. (Revised August 1984) (J. Paul Tullis)
  • Cavitation and Sound Testing on a 1.5" 2500# Gate Valve. Conducted for Anchor/Darling Valve Company, January 1984. (J. Paul Tullis)
  • Flow Calibration of a 16-Inch Tilt Disc Check Valve. Conducted for Anchor/Darling Valve Co., November 1983. (J. Paul Tullis)
  • Torque and Cv Tests on a 24-Inch Ball Valve. Conducted for McNally- Pittsburg, Inc., Pittsburg, Kansas, November 1983. (J. Paul Tullis)
  • Cavitation and Sound Tests on a 10-Inch 1500# Tilt Disc Check Valve. Conducted for Anchor/Darling Valve Company, September 1983. (J. Paul Tullis)
  • Torque Cavitation, Flow Calibration of a 36" Butterfly Valve. Conducted for Mueller Valve Co., August 1983. (J. Paul Tullis)
  • Cavitation and Sound Tests on a 20-inch 150# Stop/Lift Check Valve. Conducted for Anchor/Darling Valve Company, July 1983. (J. Paul Tullis)
  • Cavitation and Sound Tests on an 8-inch 150# Stop/Lift Check Valve. Conducted for Anchor/Darling Valve Company, July 1983. (J. Paul Tullis)
  • Cavitation and Sound Tests on a 6-inch 900# Tilt Disk Check Valve. Conducted for Anchor/Darling Valve Company, July 1983. (J. Paul Tullis)
  • Cavitation Tests on a Four-Inch Valve with Various Internal Trims. Conducted for Valtek, May 1983. (J. Paul Tullis)
  • Flow Calibration of Keystone Butterfly Valves. Conducted for Keystone Valve Company, April 1983. (J. Paul Tullis)
  • Calibration of a 24-Inch Valtek Butterfly Valve. Conducted for VALTEK, March 1983. (J. Paul Tullis)
  • Cavitation and Sound Test on a 16" 150 psi Swing Check Valve without Counter Weight. Conducted for Anchor/Darling Valve Company, November 1982. (J. Paul Tullis)
  • Cavitation and Sound Test on a 16" 150 psi Swing Check Valve with Counter Weight. Conducted for Anchor/Darling Valve Company, November 1982. (J. Paul Tullis)
  • Calibration of a 30-Inch Tiger Tooth Sodium Valve. Conducted for Valtek, Springville, Utah, August 1982. (J. Paul Tullis)
  • Cavitation and Sound Test on a 16" 900 psi Tilting Disc Check Valve. Conducted for Anchor/Darling Valve Company, June 1982. (J. Paul Tullis)
  • Cavitation and Sound Test on a 6" 150 psi Swing Check Valve. Conducted for Anchor/Darling Valve Company, June 1982. (J. Paul Tullis)
  • Hydraulic Flow Tests on a 24, 12, and 6 Inch Motionless Mixers. Conducted for Keystone Valve Company, March 1982. (J. Paul Tullis and W. D. South)
  • Torque Cavitation, Flow Calibration of a 36" Butterfly Valve. Conducted for Keystone Valve Company, March 1982. (J. Paul Tullis and Wm. Darrell South)
  • Cavitation and Sound Test on a 6" 1500 PSI Globe Valve. Conducted for Anchor Darling Valve Company, July 1981. (J. Paul Tullis)
  • Cavitation and Sound Test on a 16" 300 PSI Globe Valve with Throttling Disc. Conducted for Anchor Darling Valve Company, July 1981. (J. Paul Tullis)
  • Cavitation and Sound Test on a 16" 300 PSI Globe Valve. Conducted for Anchor Darling Valve Company, July 1981. (J. Paul Tullis)
  • Cavitation and Sound Test on a 12" 150 PSI Swing Check Valve. Conducted for Anchor Darling Valve Company, May 1981. (J. Paul Tullis)
  • Torque Cavitation and Flow Calibration of a 6" Butterfly Valve. Conducted for Keystone Valve Company, May 1981. (W. D. South and J. Paul Tullis)
  • Cavitation and Sound Test on a 8" 150 PSI Globe Valve. Conducted for Anchor Darling Valve Company, February 1981. (J. Paul Tullis)
  • Cavitation and Sound Test on a 4" 900 PSI Tilt Disk Check Valve. Conducted for Anchor Darling Valve Company, March 1981. (J. Paul Tullis)
  • Cavitation and Sound Tests on a 2.5" 150 psi Gate Valve. Conducted for Anchor/Darling Valve Company, September 1980. (J. Paul Tullis)
  • Cavitation and Sound Test on a 4" 900 psi Globe Valve. Conducted for Anchor/Darling Valve Company, August 1980. (J. Paul Tullis, D. G. Chadwick, and Wm. Darrell South)
  • Hydraulic Tests on Cla-Val Company 6-Inch HYTROL Valves. Conducted for Cla-Val Company, April 1980. (J. Paul Tullis and Hebert Riehl)
  • Cavitation of Perforated Orifices Plates - Phase B. Conducted for Stone & Webster Engineering Corp., April 1980.
  • Comparison of Torque and Cv Characteristics of Several Leaf Designs for a 24-Inch Butterfly Valve. Conducted for McNally-Pittsburg Corp., January 1980. (J. Paul Tullis)
  • Hydraulic Tests of a 24-Inch Class 900 MCC Pacific Check Valve. Conducted for Pacific Valve Company, December 1979. (W. J. Rahmeyer and J. Paul Tullis)
  • Cavitation Damage Tests on Multi-Hole Orifice Plates. Conducted for Stone & Webster Engineering Corp., November 1979. (J. Paul Tullis)
  • Cavitation Damage Tests on 16-Inch Butterfly Valve and 90o Elbow. Conducted for Stone & Webster Engineering Corp., November 1979. (J. Paul Tullis)
  • 6-Inch Cavitating Venturi Performance Test. Conducted for Stone and Webster Engineering Corp., November 1979. (J. Paul Tullis and Wm. Darrell South)
  • Calibration of a 30-Inch Tiger Tooth Sodium Valve. Conducted for Valtek Company, October 1979. (J. Paul Tullis)
  • Cavitating Venturi Performance Test. Conducted for Stone & Webster Engineering Corporation, August 1979. (J. Paul Tullis, Wm. Darrell South and Herbert Riehl)
  • Analysis of the Control Valves for the Sound Suppression System at the Shuttle Launch Pad. Conducted for Reynolds, Smith and Hill, August 1979. (J. Paul Tullis)
  • Calibration of Waeco Valves. Conducted for Waeco Division of Powell Industries, July 1979. (J. Paul Tullis, Herbert Riehl and Wm. Darrell South)
  • Cavitation and Discharge Calibration of Media Butterfly Valves. Conducted for Media Valve Company, April 1979. (J. Paul Tullis)
  • Model Study of 60-Inch Turbine Shut-Off Plug Valve for Pyramid Power Plant. Conducted for Bingham-willamette Company, March 1979. Volumes 1 and 2. (J. Paul Tullis)
  • Calibration Tests on Xomox 16-Inch Equal and Unequal Venturis. Conducted for Xomox Corporation, January 1979. (J. Paul Tullis)
  • Calibration of a 1/2-Inch Waeco Valve. Conducted for Powell Industries, Waeco Division, January 1979. (J. Paul Tullis)
  • Flow Tests of a 24-Inch Flanged Butterfly Valve. Conducted for Center Line, Inc., April; 1978. (Calvin G. Clyde and J. Paul Tullis)
  • Torque and Discharge Calibration of a 12-Inch Diameter McNally-Pittsburg Cone Valve. Conducted for McNally-Pittsburg Manufacturing Corporation, November 1978. (J. Paul Tullis)
  • Hydraulic Tests on Cla-Val Company Hytrol Valves. Conducted for Cla-Val Company, March 1978. (J. Paul Tullis and Wm. Darrell South)
  • Hydraulic Tests on Series C Valves. Conducted for the Clarkson Company, February 1978.
  • Torque and Discharge Calibration of a 24-Inch Diameter McNally-Pittsburg Butterfly Valve. Conducted for McNally-Pittsburg Manufacturing Corporation, June 1977. (J. Paul Tullis)

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Valve Reports (Colorado State University)

  • Flow and Torque Calibration of 6-Inch Flow Seal Butterfly Valves. Conducted for Flow Seal Corp., October 1979. (W. J. Rahmeyer and J. Paul Tullis)
  • Flow Tests of a 30-Inch Double Disc Gate Valve. Conducted for Anchor Darling, October 1979. (J. Paul Tullis)
  • Flow Tests on 20 and 24-Inch Recirculating Flow Control Valves. Conducted for ITT Hammel-Dahl Conoflow, June 1979. (J. Paul Tullis)
  • Cavitation Damage Tests on a Sectional Model of a 30-Inch Sodium Valve. Conducted for Valtek, January 1979. (J. Paul Tullis)
  • Report on Model Tests for the Improvement of Flow Control at Kensico South Effluent Chamber of the Delaware Aqueduct. Conducted for the New York Board of Water Supply, New York, July 1978. (J. Paul Tullis)
  • Cavitation, Torque and Discharge Calibration of a 6-Inch HPB Valve. Conducted for Xomox Corporation, Cincinnati, Ohio, August 1978. (J. Paul Tullis)
  • Cavitation and Torque of 6- and 12-Inch Center Line Butterfly Valves. Conducted for MCC Center Line, Tulsa, Oklahoma, April 1978. (J. Paul Tullis)
  • Report of Hydraulic Tests on 1:5.333 Scale Model of the Modification to the Flow control System at Kensico. Conducted for the City of New York Board of Water Supply, October 1976. (James W. Ball, J. Paul Tullis, and W. J.Rahmeyer)
  • Progress Report of Hydraulic Tests on 1:5.333 Scale Model of the Modification to the Flow Control System at Kensico. Prepared for the City of New York Board of Water Supply, January 1976. (James W. Ball and J. Paul Tullis)
  • Report of Hydraulic Tests, 16-Inch Cold Leg Check Valve. Conducted for Foster Wheeler Corporation and Atwood Morrill Company, June 1974. (James W. Ball and J. Paul Tullis)
  • Flow Test of the 28-Inch HLI Valve. Conducted for Foster Wheeler Corporation, November 1973. (J. Paul Tullis)
  • Report of Hydraulic Tests, 10-Inch Articulated Swing Check Valve. Conducted for Westinghouse Electric Corporation, November 1973. (James W.Ball, J. Paul Tullis, and Charles E. Sweeney)
  • Report of Hydraulic Tests, 14-Inch Articulated Swing Check Valve. Conducted for Westinghouse Electric Corporation, November 1973. (James W.Ball, J. Paul Tullis, and Charles E. Sweeney)
  • Performance of a 24-Inch Wafer Sphere Valve. Prepared for Jamesbury Corporation, September 1973. (J. Paul Tullis)
  • Model Study of a 48-Inch Needle Valve. Conducted for the City of New York Board of Water Supply, March 1973. (J. Paul Tullis and James W. Ball)
  • Report of Flow Tests - 18-Inch Stainless Steel Gate Valve. Conducted for Crane Company, October 1972. (J. Paul Tullis and James W. Ball)
  • Hydraulic Tests on 8- and 12-Inch Ball Valves. Conducted for Jamesbury Corporation, July 1972. (J. Paul Tullis)
  • Flow Tests on a 24-Inch Stainless Steel Gate Valve. Conducted for Crane Company, March 1972. (J. Paul Tullis)
  • Calibration of 6- and 14-Inch Ballast Valves. Conducted for Golden Anderson Valve Specialty Company, March 1972. (J. Paul Tullis)
  • Hydraulic Testing of a 6-Inch Butterfly Valve. Conducted for Center Line Inc., August 1971. (J. Paul Tullis)
  • Hydraulic Testing of a 16-Inch Butterfly Valve. Conducted for Clow Corporation, October 1971. (J. Paul Tullis)
  • Hydraulic Testing of 6- and 10-Inch Xomox Butterfly Valves. Conducted for Xomox Corporation, October 1971. (J. Paul Tullis)
  • Hydraulic Tests on 2-, 3-, and 4-Inch Ball Valves and 4- and 6-Inch Butterfly Valves. Conducted for Jamesbury Corporation, October 1970. (J. Paul Tullis)
  • Torque, Cavitation and Discharge Calibration of 6- and 12-Inch Butterfly Valves. Conducted for DeZurik Corporation, January 1970. (J. Paul Tullis)
  • Flow Tests on a 24-Inch Swing Check Valve. Conducted for Blaw-Knox Company, February 1969. Not available for distribution. (J. Paul Tullis)
  • Discharge Calibration of a 12-Inch Model Butterfly Valve. Conducted for Willamette Iron and Steel Company, January 1969. (J. Paul Tullis)
  • Cavitation and Discharge Characteristics of a 16-Inch Willamette Ball Valve. Conducted for Willamette Iron and Steel Company, January 1969. (J. Paul Tullis)
  • Flow Characteristics of a 12-Inch Surge Arrestor Valve. Conducted for Golden Anderson Valve Specialty Company, January 1969. (J. Paul Tullis)
  • Torque, Cavitation and Discharge Calibration of a 12 x 10-Inch Larner Johnson Needle Valve. Conducted for Darling Valve and Manufacturing Company, August 1968. (J. Paul Tullis)
  • Torque, Cavitation and Discharge Calibration of a 12-Inch Butterfly Valve. Conducted for Jamesbury Corporation, August 1968. (J. Paul Tullis)
  • Torque, Cavitation and Discharge Calibration of 6, 12, and 20-Inch Butterfly Valves. 2 vols. Conducted for DeZurik Corporation, July 1968.(J. Paul Tullis)
  • Torque and Discharge Calibration of an 8-inch Butterfly Valve. Conducted for Jamesbury Corporation, May 1968. (J. Paul Tullis)
  • Discharge Calibration and Cavitation Investigation of a 12-inch Needle Valve. Conducted for Darling Valve and Manufacturing Co., September 1967. (J. Paul Tullis)
  • Hydraulic and Cavitation Characteristics of Valves. 2 Vols. Conducted for the Metropolitan Water District of Southern California through Bechtel Corporation, June 1967. (M. L. Albertson, J. Paul Tullis, and Charles W. Thomas)

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