| Connection type | Threaded branch outlet (half-coupling style) |
|---|---|
| Branch angle | 90° |
| Thread | Female NPT |
| Header end | Contoured base, welded to run pipe |
| Typical service | Low-pressure piping, 300# service |
| Size range | Please enquire for run × branch combinations |
| 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. |
Coupolet
Coupolet is a forged half-coupling style branch fitting with female NPT threads for fire protection sprinkler and other low-pressure piping. Stocked and supplied by SJS Enersol.
- Forged carbon steel – ASTM A105
- Other grades subject to availability
- Fire protection sprinkler system branches
- Low-pressure water and utility piping
- Threaded take-offs for drains, vents and instruments
A Coupolet is a half-coupling style branch fitting with a contoured base that is welded to the run pipe, providing an integrally reinforced outlet with female NPT threads. It is designed for fire protection sprinkler systems and other low-pressure piping (typically 300# service), and because the branch is threaded, no welding is needed on the branch side.
SJS Enersol – Stockist & Supplier of Coupolets
SJS Enersol stocks and supplies Coupolets for sprinkler and utility piping contractors who need quick, reliable threaded take-offs from steel headers.

