Counter Fire Doors

• SD,D,W,I – Service doors are designed to withstand a minimum 20 PSF
  windload.

•  SD – One year or 12,500 cycles.
• D,W,I – Two years or 20,000 cycles

• SD,D,W,I – Chain hoist is standard; push-up (small sizes), awning crank,
  crank box or motor operation are optional.

• SD,D,W,I – Galvanized steel slats with baked on gray polyester primer
  standard. Tan or uncoated galvanized finish available upon request.
• SD – 24 gage slats with stamped steel endlocks.
• D,W – 22,20,18 gage slats, as required to meet windload, with stamped
  steel endlocks. Windlocks are riveted to slats when required to meet
  windload.
• I – Same construction as D and W models with the addition of ¾” laid in
  place polyurethane or polystyrene foam concealed by 24 gage backslat

• SD,D,W,I – Extruded aluminum footpiece with astragal standard up to 16’
  wide
• D,W,I – Double steel angle footpiece with astragal standard over 16’.
  Painted with rust inhibiting black primer.

• SD – Steel channels bolted to structural steel wall angles. Painted with rust
  inhibiting black primer.
• D,W,I – Structural steel angles bolted to structural steel wall angles.
  Windlock bars are installed when windlocks are required to meet windload.
  Painted with rust inhibiting black primer.
• W,I – Climate and Thermal-Guard models also include vinyl guide
  weatherstripping against the flat-faced side of the slats.

• SD,D,W,I – Steel plate brackets are bolted to wall angles to support curtain
  and barrel, and provide mounting for hood. Painted with rust inhibiting
  black primer.

• SD,D,W,I – Steel plate brackets are bolted to wall angles to support curtain
  and barrel, and provide mounting for hood. Painted with rust inhibiting
  black primer.

Steel pipe houses torsion spring assembly and supports curtain with a maximum deflection of .03 inch per foot of width. Torsion springs are mounted on a continuous cold rolled steel shaft, adjustable by a tension wheel outside one bracket.

Square hood formed from 24 gauge (galvanized steel) (stainless steel) sheet, reinforced with tip and bottom flanges to limit deflection.

Slide Bolt locks standard for push-up operation, optional otherwise.