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Product Code: BO-04

Branched Outlets Fittings

Weldolets, sockolets and threadolets for branch connections on process piping runs.

MSS SP-97WeldoletSockoletThreadolet

Technical Information

Branch outlet fittings create a branch connection on an existing run pipe without a full tee, saving weight and cost on smaller branch lines while maintaining code-compliant reinforcement.

Material GradeASTM A105, A182 F304/F316
Run Size Range2" NB to 48" NB
Branch Size Range1/2" NB to 24" NB
Design StandardMSS SP-97
End TypesWeld / Socket / Thread
TestingDPT / MPT / UT as required

Applications

  • Instrument and vent/drain branch connections
  • Small-bore take-offs from main process headers
  • Utility and steam distribution branches
  • Skid and package unit branch piping
Weldolets
  • Butt-weld branch outlet
  • Full reinforcement for main run
  • Most common branch fitting
Sockolets
  • Socket weld branch outlet
  • For small-bore branch lines
  • Fillet weld to branch pipe
Threadolets
  • Threaded branch outlet
  • For instrument connections
  • NPT / BSPT threads available
ItemTypeSize RangeWall ThicknessStandard
Weldolet Forged 1/2" – 24" NB branch Matched to run schedule MSS SP-97
Sockolet Forged 1/8" – 4" NB branch Class 3000 – 9000 MSS SP-97
Threadolet Forged 1/8" – 4" NB branch Class 3000 – 9000 MSS SP-97
Ferrous Materials
  • Carbon Steel — ASTM A105
  • Stainless Steel — ASTM A182 F304/F304L/F316/F316L
  • Alloy Steel — ASTM A182 F11/F22/F91
Non-Ferrous Materials
  • Duplex — ASTM A182 F51/F53
  • Nickel Alloys — on request
01
Forging
02
Machining
03
Bevel/Socket Prep
04
Inspection
05
Marking & Dispatch