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Technical Briefing: Theory and Operation of Pressure-Reducing Regulators

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Swagelok field engineer and regulator expert Eric Kayla covers the basics of pressure-reducing regulators — from operating principles and key components to terminology like "droop", and "creep".
  • Regulator operating principles: the balance of forces
  • Key components: sensing and mechanisms, hard vs. soft seats 
  • How to improve the flow curve
  • Advantages of a two stage regulator
  • Common regulator terms
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About the presenter

Eric Kayla joined Swagelok 17 years ago. He started at the Solon, Ohio, headquarters as a laboratory engineer, working on high-purity fittings and pipe fittings. Then he switched over to new-product development. Eventually, he also put in some time in assembly engineering and assembly supervising. In 2005, after earning a master's degree in engineering at University of Akron, he moved to San Diego and became a field engineer.

Today Eric travels the West in three countries. In the United States, his territory includes everything from the Pacific Coast inland to New Mexico, Colorado and Wyoming. He handles Alaska and Hawaii too. In Canada, his territory is Manitoba and west. And to the south, he handles Mexico's Baja Peninsula. He spends at least half his life on the road, meeting customers and discussing their needs.

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