| Design standard | MSS SP-97 (integrally reinforced forged branch outlet fittings) |
|---|---|
| Connection type | Butt-weld branch outlet |
| Branch angle | 90° |
| Header end | Contoured base to suit run pipe outside diameter |
| Branch end | Butt-weld bevel (ASME B16.25) |
| Wall thickness | Matched to pipe schedule (STD, XS, SCH 40, SCH 80, SCH 160 and others subject to availability) |
| Pressure rating | Same as seamless pipe of the matching schedule |
| Size range | Size-on-size and reducing; stocked run × branch combinations on enquiry |
| How to order | Please state the run (header) size × branch size, olet type, material grade, schedule or pressure class and end connection when requesting a quote. Stocked sizes, schedules and grades vary, so please confirm availability. Material test certificates (MTC) are provided with every shipment. |
Weldolet
Weldolet is a forged, integrally reinforced butt-weld branch outlet that creates a 90° branch from a run pipe. MSS SP-97 design, stocked and supplied by SJS Enersol for high-pressure process and utility piping.
- Carbon steel – ASTM A105
- Low-temperature carbon steel – ASTM A350 LF2
- Alloy steel – ASTM A182 F11 / F22
- Stainless steel – ASTM A182 F304 / F304L / F316 / F316L
- Other grades subject to availability
- Branch lines off main headers in oil and gas, petrochemical, power and chemical plants
- High-pressure and high-temperature process and utility piping
- Branch sizes NPS 2 and above, or wherever the piping specification calls for butt-weld branch connections
- Lines where the branch weld must be radiographed or ultrasonically tested
A Weldolet (butt-weld branch outlet) is a forged branch connection fitting welded directly onto the run pipe to form a 90° branch. Its contoured base sits flush on the header and its beveled outlet is butt-welded to the branch pipe. Because the body is integrally reinforced, no separate reinforcing pad is needed, and the funnel-shaped bore keeps the flow transition smooth. This makes the Weldolet the most widely used olet for high-pressure and high-temperature lines, particularly for larger branch sizes.
SJS Enersol – Stockist & Supplier of Weldolets
SJS Enersol stocks and supplies Weldolets to contractors, EPC companies and fabricators across the UAE, GCC and wider region. Size-on-size and reducing outlets are available, with wall thickness to suit the run and branch pipe schedule, so one fitting replaces a cut-in tee or a pad-reinforced branch.
