Types of Butt Weld Pipe Fittings

What is a butt weld pipe fitting ?

  • butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.
  • This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.
  • Other types of fittings can be threaded or socket welded.Butt weld pipe fittings

What are advantages of butt welding over flanges ?

  • Flanges connect pipes by bolting them together, whereas butt weld fittings connect pipes by welding them together.
  • Depending on size, butt weld fittings require 10% to 75% less material than a flanged connection, which means lower material cost and lower weight.
  • Welded construction permits greater freedom in designing a layout; this system uses less space, is more compact, and has greater strength.
  • Butt weld fittings provide optimum flow characteristics, without pockets or sharp corners, creating less frictional resistance, no pressure loss, less turbulence, …7FAQS_CS5

What is a seamless butt weld fitting ?

  • seamless butt weld pipe fitting is made directly from a section of seamless pipe material, by applying heat and pressure to transform pipe directly into an elbow or other shape.
  • A seamless fitting has no welded parts by itself, a characteristic demanded in some critical applications.
  • By comparison, a regular butt weld fitting has one, two or more welds, depending on dimension, shape and manufacturing method.
  • No weld means less risk of weld yield and porosities.7FAQS_CS5

What is PVF ?

  • PVF means Pipe, Valve and Fittings, and is widely used as short-hand to describe this industry.
  • PVFs can be made in a variety of metals or plastics.
  • Manufacturers typically specialize in special types of materials; distributors can carry narrow or very broad product lines.

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