Unique Fire Stop Products Split Sleeve- (4-Hr) Block System

1. Wall Assembly — Min 7-5/8 in. thick reinforced lightweight or normal weight concrete wall. Wall may also be constructed of any nom 8 in. thick (or thicker) UL Classified Concrete Blocks* with Classification B-4.

See Concrete Blocks (CAZT) category in the Fire Resistance Directory for names of manufacturers.

2. Cables — Aggregate cross-sectional area of cables in sleeve to be min to 8 max 34 percent of the cross-sectional area of the sleeve. Cables to be tightly bundled. The annular space shall be min 1/4 in. to max 1-1/4 in. Cables to be rigidly supported on both surfaces of the wall assembly. Any combination of the following types and sizes of cables may be used:

A. Max RG59/U (or smaller) coaxial cable with fluorinated ethylene insulation and jacketing.

B. Max 62.5/48 fiber optic cable with PVC insulation and jacket.

C. Max 4 pair No. 24 AWG (or smaller) copper conductor data cable with PVC insulation and jacketing.

3. Firestop System — The firestop system shall consist of the following:

A. Firestop Device* — Threaded steel sleeve device incorporating flat washers secured by threaded couplers. Device shall be installed around cables in accordance with the accompanying installation instructions. Device provided in nom 1, 2 and 4 in. sizes. Max diam of opening in wall for 1, 2 and 4 in. size devices are 1-1/4, 2-7/16 and 4-1/2 in. respectively.

UNIQUE FIRE STOP PRODUCTS INC — Threaded Sleeve

A1. Firestop Device* — (Not Shown) — As an alternate to the threaded sleeve device in Item 3A, threaded steel sleeve halves incorporating split nuts and split washers sized to fit the specific diam of the opening may be used. Device shall be installed around cables in accordance with the accompanying installation instructions. Device provided in nom 1, 2 and 4 in. sizes. Max diam of opening in wall for 1, 2 and 4 in. size devices are 1-1/4, 2-7/16 and 4-1/2 in. respectively.

UNIQUE FIRE STOP PRODUCTS INC — Split Sleeve

B. Packing Material — Min 4 pcf mineral wool batt insulation firmly-packed into opening as a permanent form through full length of steel sleeve except for recess at each end of device to accommodate the required thickness of fill material.

C. Fill, Void or Cavity Materials* - Putty — Min 1 in. thickness of fill material applied within annulus, flush with both ends of firestop device.

UNIQUE FIRE STOP PRODUCTS INC —
 

*Bearing the UL Classification Mark