APPLICATION
Model K75-D is approved for use in walls, floors and partitions with fire resistance ratings less than 3 hours.
STANDARD CONSTRUCTION
• FRAME.
2” (51mm) maximum x 22 (0.85mm) gauge galvanized steel channel.
• BLADES.
22 (0.85mm) gauge Galvanized steel curtain type in the air stream.
• FINISH.
Mill.
• CLOSURE SPRINGS.
301 Stainless Steel Spring.
• FUSIBLE LINK.
Standard 165° F ( 74° C). Other available.
• MOUNTING.
Vertical or Horizontal .
• MINIMUM SIZE.
Vertical installation :
4"W x 4"H (100 x 100mm).
Horizontal installation:
4"W x 4"H. (100 x 100mm).
• MAXIMUM SIZE.
Single section
Vertical installation:
48" W x 44" H. (1219 x 1118mm)
Horizontal installation:
41" W x 32" H. (1041 x 813mm)
FEATURES
*Slim profile design for minimum clearance applications.
*Each damper is marked with a 1-1/2 hours UL 555 Classified fire damper label.
*Meets all UL and NFPA criteria for primary fire dampers in walls and floors with fire resistance ratings of less than 3 hours.
VARIATION
All UL Classified fire dampers must be fabricated in accordance with UL procedures. Available variation are limited to those incorporated in the approved procedures.
Approved variations available at additional cost are :
*Factory furnished sleeves.
Sleeves are available in 10 (3mm) through 20 (1mm) gauge steel and in lengths required for the specific application.
NOTES
* Dampers furnished approximately 1/4"(6mm) smaller than given duct dimension
* Refer to the KBE Installation Instruction and supplements for complete installation details.