Gaskets and Bolted Flange Connections

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Containing fluids (liquids and gases) is essential to both safe and efficient process operation. Leaky systems can be costly as well as dangerous. The US EPA has set down regulations aimed at limiting emissions of volatile organic compounds (VOC) in pumps, compressors, valves, and flanged equipment. This training shows you how to achieve a good flanged connection as well as the essentials of studs, bolts and nuts. Selected as a Finalist for the 2004 Product of the Year Award by Plant Engineering Magazine.

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The Physics of a Bolted Flange Connection

  • Fugitive Emissions and Moving Toward a Leak Free System
  • VOC’s (EPA 40 CFR Part 60)
  • Gasket Terminology and Selection Criteria
  • The Mechanics of a Gasketed Joint
  • ASME Boiler and Pressure Vessel Code
  • Minimum Seating Force
  • Minimum Operating Bolt Load
  • Pressure (P), Temperature (T), and PxT Ratings
  • Gasket Materials

The Function of Bolts, Studs, and Nuts

  • Hooke’s Law and the Physical Limits of Bolts
  • The Stress vs. Strain Relationship
  • Standard Bolt Components
  • Bolt and Stud Terminology
  • Bolt and Stud Size and Thread Standards
  • Stud, Bolt, and Nut Grades
  • Using a Torque Wrench
  • Determining Bolt Torque Values
  • Friction Factor and Nut Factor
  • Other Ways to Achieve Proper Bolt Load

Types of Flange Connections

  • Standard Pressure Ratings
  • Flange Faces and Connections
  • Types of Gaskets

Bolted Connection Maintenance

  • Establishing a Flange Connection Program
  • Flange Connection Guidelines
  • Flange Tightening Sequence and Torque Progression
  • Flange Leakage and Maintenance