Adjustable I-Beam adapter from TPMC is a specialized fitting for rigid and non-rigid seismic sway brace systems. Its jaw grips one side of an I‑beam flange, while a back plate with a curved end locks the opposite flange. Two adjustable heavy‑duty tie rods connect the jaw and back plate beneath the beam, enabling fast installation on a wide range of steel I‑beams without drilling or welding.
Ready to use out of the box – no loose parts or field assembly required – it provides a strong attachment point. Cone‑point set screws with break‑off heads provide visual torque verification.
UL Listed and FM Approved, this seismic sway brace component resists differential movement between sprinkler piping and the building structure during seismic events or other dynamic building movements.
Available sizes
| I-Beam flange thickness | I-Beam width (A) | Mounting bolt (S1) | Tie rods size (S2) | Ref. No. |
|---|---|---|---|---|
| 1/4″ ~ 3/4″ | 4″ ~ 8.5″ | 1/2″ | 3/8″ | P7301 (UL/FM) |
| 1/4″ ~ 3/4″ | 4″ ~ 14.5″ | 1/2″ | 3/8″ | P7302 (UL/FM) |
| 3/4″ ~ 1-1/4″ | 4″ ~ 18″ | 1/2″ | 3/8″ | P7303 (UL/FM) |
Note:
1. UL Listed and FM Approved when the brace member is steel pipe NPS 1″ ~ 2″ SCH40. UL rated loads: 1500 lbs (1/4″ ~ 5/16″ flange), 1700 lbs (3/8″ ~ 3/4″ flange). FM lateral loads as shown – for longitudinal loads or brace angles 45° ~ 74°, consult TPMC.
2. This adapter can also be used as a cable structural attachment fitting for non‑rigid sway brace systems.
Email us at info@tpmcsteel.com or use the form below. Normally you will be replied within 2 hours during support hours.
