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Socket Weld Flange (SW)

Pipe Flange

Socket Weld Flange (SW)

Mainly for small-bore (≤DN50) high-pressure instrument and hydraulic lines.

Category
Pipe Flange
Specification
RF / ASME B16.5 / NPS 1/2-2 in
Product code
SW-RF
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Product details

Socket weld flanges are machined with a socket recess to receive the pipe end, and the pipe is fillet welded externally. The type is normally reserved for small bore pipe (NPS 2 / DN50), and provides a smooth internal bore with good alignment.

Structural Features in Detail

Machined socket recess

  • Machined socket recess to receive pipe end.
  • Fillet welded externally.
  • Normally reserved for small bore pipe (NPS 2 / DN50).
Socket weld flange with machined socket recess

Smooth internal bore

  • Smooth internal bore.
  • Good alignment.

Reserved internal gap

  • A small gap is reserved inside socket for thermal expansion.

Available faces

  • RF
  • FF
  • MFM
  • T&G
CNC rough and finish machining of flange faces

Usage Limitations

  • Crevice may exist inside socket.
  • Not suitable for slurry or corrosive media that causes crevice corrosion.

Application

  • Small-bore, high-pressure instrument lines.
  • Hydraulic tubing.
  • Small chemical sampling piping.

Applicable Standards

  • ASME: ASME B16.5
  • EN: EN1092-1 Type13
  • GB: GB/T9117, HG/T20615
  • JIS: JIS B2220
  • GOST: GOST 33259