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P.O Box – 1038,

Street No. 41, New Industrial area,

Doha - Qatar.

Tel: +974 4411 4635

Tel:+974 4437 8777

© 2018 by Khalid Manufacturing Company.

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VISITORS

LA1

Combination Fire / Smoke Damper

Class I • Airfoil Blade • 3 Hour • 250°F or 350°F • Galvanized Steel • UL Classified Damper

STANDARD CONSTRUCTION

Frame

Frame Type

Blade 

Blade Type

Axle materials

Axle Bearings

Linkage

Blade Seal

Jamb Seal

Closure Device

Closure Temp.

: 16-GA galvanized steel

: 5½" X ⅞" Galvanized steel Hat Channel

: 20-GA Double skin ( equivalent to 14-GA )

: Airfoil type

: Plated Solid Steel stub

: Oil impregnated bronze

: Plated steel angle & crank plates with stainless steel
pivots; In-jamb type

: Silicone

: Stainless steel

: Electric heat responsive device

: 165º F (73ºC)

OPTIONS

  • Exact Size (No Undercut)

  • Sleeve - Transitions

  • Actuators - 120V, 24V, 230V or Pneumatic

  • Right Hand and/or Internal Actuator Mounting Locations (Restrictions Apply)

  • Dual Position Indication (IDPI) Switches

  • Sensotherm Re-Openable Heat Response Device (ESOT) for Electric Actuator

  • Sensotherm Re-Openable Heat Response Device (PSOT) for Pneumatic Actuator

  • Model SM-501 Flow-Rated Smoke Detector

  • Model 2151 No-Flow Smoke Detector (12” Minimum Damper Height)

  • Momentary Test Switch Remote Test Box Transformers

  • Tab-Lock Retaining Angles

  • Stainless Steel Bearings Stainless Steel Axle Security Bars

  • Copper Tubing (for Pneumatic Actuators)

  • Sleeves Of Various Depth And Gauge Thickness (restriction apply)

  • No Sleeve (restrictions apply)

  • Round or Oval Transitions.

  • Short-Width (<8”) and/or Short-Height (<6”) Transitions

DATA SHEETS

  • Installation Instruction

  • Supplementry Information

NOTES

  • Damper frames are provided approximately ¼” undersized. The addition of a sleeve will increase the size of the assembly.

  • Damper >=12” in height with factory mounted SM-501 smoke detectors require a minimum 19” deep sleeve (10.5” on the actuator side); detectors will be mounted on the side of the damper opposite actuator. 

  • Damper <12” in height with factory mounted SM-501 smoke detectors require a minimum 20 deep sleeve (11.5” on the actuator side); detectors will be mounted on the bottom or top of damper.

  • Smoke Detectors can be ordered for field mounting with standard 18” deep sleeve.

  • Dampers for horizontal installation can only be mounted in a fire barrier constructed of masonry/concrete materials.