Now showing items 1-20 of 22

    • Shiels, Stan T. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      The essential elements to be reviewed when considering a centrifugal pump application are highlighted. The purpose is to ensure the procurement and/or application of a centrifugal pump which optimizes reliability, energy ...
    • Patel, Vinod P.; Bro, James R. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      The general requirements for inspection and testing of centrifugal pumps are presented. The successful completion of inspection and testing verifies pump design and specification compliance prior to release of pump for ...
    • Pellin, Johnny J.; McCollough, William J. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      A mechanical seal improvement program was initiated at a major oil refinery. The program was intended to improve seal reliability, reduce emissions, improve safety, and reduce costs. A partnership agreement was reached ...
    • Lavelle, Kenneth E.; Key, William E.; Holman, Al C. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      Dual mechanical seals are operated on pressurized barrier fluid systems when the pump product properties do not support reliable single seal operation. This provides added protection against environmental release of the ...
    • Vetter, Gerhard; Schlucker, Eberhard; Horn, Waldemar; Neis, William E. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      The application of diaphragm pumps for metering and conveying the fluids are continuously expanding because they provide zero-leakage, can run dry, have superior efficiency, offer high reliability, maximize safety and ...
    • Engstrom, Reid W.; Casucci, David P.; Kotlyar, Michael (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      Dry running bellows seal technology, where the secondary (outer) seal operates in a dry condition, was originally developed in the UK and Europe for protection against primary seal failure. Over the past three years, it ...
    • Stavale, Anthony E. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      As users continue to turn to sealless pumps to solve their leakage (emission) problems they are demanding robust designs that are more tolerant of system upsets and have the ability to survive short periods of dry running. ...
    • Adams, William V.; Dingman, Randy R.; Parker, Joseph C. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      Dual gas seals are gaining acceptance by industrial users as a product that offers advantages over conventional liquid lubricated seals. These advantages are measured in terms of controlling emissions, minimizing product ...
    • Nelik, Lev; Jackson, Charles (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      The effect of rotor mechanical unbalance on pump vibrations was tested for a typical ANSI pump. It was found that significant damping of vibrations occurs at actual (wet) operations as compared to dry run. Rotor forces and ...
    • Price, Stephen M.; Smith, Donald R.; Tison, James D. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      Compared to leading edge technologies such as high speed turbomachinery, reciprocating pumps may appear to be a simple technology: A reciprocating plunger causes liquid to be drawn from a low pressure manifold through the ...
    • Sloteman, Donald P.; Wotring, Timothy L.; March, Patrick; McBee, Dan; Moody, Larry (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      The suction-impeller (single-suction) of a 33,500hp, four-stage barrel pump used in boiler feed service at a fossil fuel steam plant experienced operating life ranging from 6.0 to 19 months. Cavitation erosion on the suction ...
    • Spring, Hans (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      A few well established hydraulic design parameters define the internal quality of an impeller design. Becoming familiar with those parameters and understanding their limits will enable pump buyers to make better pump buying ...
    • Dolniak, Joseph F. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      Many facilities do not obtain the expected life out of ANSI and other centrifugal pumps, seals, and bearings that need to be obtained to be competitive in today’s market place. The analysis of this situation leads to two ...
    • Guinzburg, Adiel; Buse, Frederic W. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      The technique of measuring steady loads on centrifugal pump impellers via magnetic bearings is demonstrated and shown to be reliable way of clarifying loads, which have been traditionally difficult to determine both ...
    • Riegger, Helmut; Nicklas, Alexander (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      Both fluid dynamics and manufacturing technology have seen rapid progress over the last few years. Vane profiles need no longer be developed in cavitation demonstration experiments, but can be optimized by computerized ...
    • Nelson, William E. (Ed) (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      Many centrifugal pumps are doomed to premature failure because the total pump installation was not evaluated or the repair activity coordinated to correct the basic cause of the initial failure. Pump users have a great ...
    • Karassik, Igor J. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
    • Monroe, Perry C. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
    • Essinger, Jack (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)
      Proper alignment of rotating equipment has long been recognized as a prerequisite to safe, reliable operation. Achieving proper alignment, however, involves much more than merely adjusting the machines so that the shafts ...
    • International Pump Users Symposium (12th : 1995) (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1995)