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Fire Protection

FlameStopper
FlameStopper

If you need the integrity of a firewall, without adding caulk or putty after the cables have been installed, look to FlameStopper thru-wall fittings. Redesigned for both new installations and retrofits, these fittings combine a built-in fire-stopping intumescent material with an enclosed thru-wall penetration. They meet UL tests for flame, temperature and smoke, as well as for use in air handling spaces (plenums). Once installed, FlameStopper fittings allow you to add or remove cables easily, without risking unseen and potentially dangerous gaps or voids that can occur with caults or putty.

FlameStopper thru-wall fittings consist of two box assemblies, each with adjustable steel doors. The boxes are fitted to EMT conduit and cable pass through a block of intumescent material inside each assembly. At 375 the material expands, creating a hard char that fills voids around the cables and stops flames from penetrating the opening. FlameStopper thru-wall fittings are eay to install and inspect and work seamlessly with Legrand/Cablofil cable management products.

2 inch Capacity

  • Available in 2" and 4" capacities.
  • 4 hour rating for flame and temperature when tested to UL 1479 standards.
  • Highly effective smoke stop.
  • Can be ganged for additional capacity.
  • Bond both FlameStopper Fittings and Cable Trays together by attaching proper size wire to ground screw on fitting tops, through FlameStopper Sleeve, and to trays using either Cablofil GNDSB or GNDCL ground clamp in order to comply with NEC 250.96.

4 inch Capacity
To Install FlameStopper
Step 1

Determine the location for the fitting on the wall and cut a hole to fit FlameStopper EMT conduit.

Step 2

Install FlameStopper box to one side of the wall using adhesive strips. Insert the proper length of conduit thru the opening and press in place.

Step 3

Install the second FlameStopper box to the opposite side of the wall and tighten all bolts.

Product Descriptions

Firestop 4" Trade EMT Conduit Fitting

For transitioning cable through fire rated walls/floors for both new and retrofit applications. Available in red (RED) or G90 galvanized finish (GA). UL System W-L-3264 and W-J-3137.

Firestop 2" Trade EMT Conduit Fitting

For transitioning cable through fire rated walls/floors for both new and retrofit applications. Available in red (RED) or G90 galvanized finish (GA). System W-L-3264 and W-J-3137.

Product Information Chart

Precut Conduit 4" Trade Size EMT

Precut to 7 5/8" (194mm) to fit standard gypsum fire walls with a two-hour fire rating (6" (152mm) wall thickness).

Precut Conduit 2" Trade Size EMT

Precut to 7 5/8" (194mm) to fit standard gypsum fire walls with a two-hour fire rating (6" (152mm) wall thickness).

Heat Shield 4" Trade Size Conduit

Used only when an existing installed conduit extends 1" (25mm) to 6" (152mm) beyond the wall surface.

Heat Shield 2" Trade Size Conduit

Used only when an existing installed conduit extends 1" (25mm) to 6" (152mm) beyond the wall surface.

Retrofit Kit for Existing Installations

Kit includes 4" trade size split conduit sleeve to enclose existing cables, and 12" x 12" (305mm x 305mm) ceramic heat protected wall plate to cover irregular hole cuts. For use with FS4R Series Firestop.

Retrofit Kit for Existing Installations

Kit includes 2" trade size split conduit sleeve to enclose existing cables, and 8" x 8" (203mm x 203mm) ceramic heat protected wall plate to cover irregular hole cuts. For use with FS2R Series Firestop.