Common sizes kept in stock; stock orders ship the same day

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Lap-joint stub ends

Lap-joint stub ends for use with lap-joint flanges

  • Common sizes kept in stock; stock orders ship the same day
  • Carbon, low-alloy, stainless, duplex and alloy steel; see the materials table
Stub ends · Product illustration
Product illustration

A stub end works with a lap-joint flange. The flange does not touch the process fluid and can rotate to line up bolt holes, which is why stub ends are common on stainless lines where flange material is expensive.

We make stub ends to standard or to your drawing, and make the flanges too, so both can be supplied to the same standard.

Photos

Applications

Process lines that are taken apart often or that need to save on flange material.

Materials

GroupGradesEquivalent
Carbon steel
  • 20#
  • Q235
—
Low-alloy steel
  • 16Mn
  • Q345
—
Stainless steel
  • S30408
  • S30403
  • S31608
  • S31603
304, 304L, 316, 316L
Duplex stainless
  • 2205
  • 2507
UNS S32205 / S31803, UNS S32750
Alloy steel Supplied on request; state the grade in your inquiry —

Questions

Which flange goes with a stub end?

A lap-joint (loose) flange. We make flanges as well and can match them to the same standard.

What do you need for a stub end quote?

Nominal size, wall thickness, material, standard, pressure class of the matching flange and quantity.