Extruded Hot Tap fittings for safe & efficient repairs

Strength. Adaptability. Reliability.

When it comes to operational and performance safety, plant integrity, and minimizing production loss, Uni-Forge hot tap and line stop piping reinforcement products are the ideal solution.

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Hot Tap Tees
Hot Tap Tees

Rely on us to meet tight deadlines.

With extensive raw material in stock, including common size-on-size full-bore tees in semi-finished conditions, we can significantly reduce manufacturing lead times—ensuring you have the product you need—right when you need it..

Custom-built quality you can count on.

Uni-Forge hot tap fittings are designed for equipment tie-ins and line extensions with permanent full-bore valves. Available in sizes from 2″ to 48,″ fittings are equipped with a weld neck flange RF according to ANSI Class 150, 300, 600 or 900, with larger sizes and pressure ratings available.

Each manufactured Uni-Forge fitting comes with a Mill Test Report (MTR) package tailored to your specific requirements. Our level of Non-Destructive Evaluation (NDE) includes all design code required testing.

Uni-Forge will perform any of the following tests as requested:

  • Ultrasonic Testing (UT)
  • Liquid Penetrant Testing (PT)
  • Radiographic Testing (RT)
  • Magnetic Particle Inspection (MPI)
  • Product Analysis (Chemical Check)
  • Hydrogen Induced Cracking (HIC)
  • Sulfide Stress Cracking (SSC)
  • Full Body Hydrotesting

Based on pipeline size and specifications, Uni-Forge fittings can be provided with different reinforcements such as a weldolet or re-pad.

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Hot Tap Tees

Why Uni-Forge has been the right choice for over 25 years.

  • Personalized customer service and a commitment to on-time delivery
  • Fittings are manufactured with extruded outlets, eliminating stress risers in branches that are inherent in welded-type tees. Extrusion also eliminates difficulties when radiographing the weld
  • All products come with a Quality Assurance Data Package complete with material certificates, non-destructive test reports, heat treat reports and dimensional inspection reports, and are designed to meet ASME piping code requirements and DOT standards
  • Hot tap and line stop fittings are provided with ASME Class 150 to 900 flanges with options of Raised Face or RTJ grooves
  • All fittings are compatible with all industry standard Hot Tap and Line Stop equipment
  • We use qualified, in-house, third party approved welders and have WPS and PQRs covering most common welding processes and materials

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Size Range 2" to 48" - larger sizes available
Pressure Rating 150# - 900#
Wall Thickness Up to 4" depending on the size
Material Carbon steel, Alloy steel, and Stainless steel
Codes ASME B31.1, B31.3, B31.4, B31.8 and DOT compliant
Flange Type Standard ASTM A105 flanges to ASME B16.5/ 16.47

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