Tapping fittings are full-branch split tees designed for use when connecting branch lines. They are offered in sizes 4- through 8-inch and meet B31.3 specifications for use in refinery and chemical plant piping systems. Fittings are equipped with RF or RTJ flanges.
Flange-to-sleeve weld joints and sleeves are designed to meet pressure and reinforcement requirements of ASME codes, and are available in Class 150, 300 and 600. Other ASME Class ratings available upon request.
Fittings are manufactured with a controlled carbon equivalent to make welding easier in harsh environments. Back-up strips are provided for all fittings.
All pressure-containing welds on the fittingshave undergone X-ray inspection per ASME requirements.
Fitting sleeves are an extruded type design. They are manufactured from a pressure-vessel quality, normalized, killed carbon steel plate with hardness below Rc22.
The Charpy impact value of the sleeves at -50°F is 15 ft-lbs average with 12 ft-lbs minimum.
Options:
- Rapid delivery: If the desired fitting meets standard specifications, it can be shipped from stock within two weeks in most cases.
- Choice of flanges.
- Available also to ASME B31.4 and B31.8 specifications
