Products Covered:
U.S. Smoke & Fire Corp Model Hose Stream 120 Steel-Tex Fire Shutter (Smoke & Draft Curtain Assemblies) tested in accordance with UL 1784 . No fire rating is implied or granted.
Product Description:
The U.S. Smoke & Fire Corp Model Hose Stream 120 Steel-Tex Fire Shutter systems consist of a filament glass fabric, which is wound onto a tube containing an internal drive system. Contained in a sheet metal housing, the curtain assembly is comprised of support rollers and associated electronics. The curtain edges are captured in vertical side guides during system deployment and the bottom edge of the curtain is attached to a weighted bottom bar. If the system encounters an alarm, the releasing device activates deploying the curtain. Should main and backup power systems fail, the curtain will deploy in a controlled manner under the influence of gravity (Gravity Fail Safe). If required, wall switches are provided on each side of the curtain, allowing occupants to momentarily raise the curtain to egress.
Maximum size
Drop height 40'0"
Opening Width 25'0"
Minimum Size **
Drop height 6'6"
Opening Width 7'0"
**
(size tested)
AIR LEAKAGE RATINGS
| Test Standard |
Test Type |
Rating |
| UL 1784 |
Ambient Temperature |
≤3.0 cfm/ft2 at up to 0.10 in. of w.c. |
| UL 1784 |
Elevated Temperature |
≤3.0 cfm/ft2 at up to 0.10 in. of w.c. |
This assembly was tested without an artificial bottom seal. The assembly may be installed in areas where pressurization is provided to control smoke movement in accordance with Section 4.3.2 of NFPA 105 (2019) and for hoistway opening protection and lobby doorways as allowed in Chapter 30 of the 2018 IBC.
