423STC-48

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List Price

$188.75 / EA.

Anodized Aluminum Heavy-Duty Mortise Automatic Door Bottom

Product Features

  • Aluminum Alloy 6063, T6 Temper
  • BHMA Certified to ANSI/BHMA A156.22, 1,000,000 Cycle Test-Grade 1
  • BHMA Certified to ANSI/BHMA A156.22 Performance Tests for Heat and Cold
  • Very Good Abrasion Resistance, Tensile Strength and Memory
  • Flame-Resistant
  • Moisture-Resistant
  • Temperature Range -81°F to 275°F
  • Use with a Threshold like 8144S for Maximum Sealing Capability
  • Specify Exact Net Length Required to Avoid Field Sizing
  • Furnished 1/2" Shorter Than Ordered to Fit Within Net Door Size. (i.e. 36" is Furnished 35-1/2")
  • ADB’s from 12" to 18" Can be Cut Down 1/2". ADB’s 20" and Over Can be Cut Down up to 1-1/2"
  • Black Plastic End Caps Furnished Standard
  • Fits Wood Fire Door Mortise Restrictions
  • Mortise Required 3/4" x 1-11/16"
  • Minimum Length 11-1/2", Maximum Length 60"
  • Non-Handed
  • STC 52
  • 3/4" Max Drop

Standards

  • CERTIFIED by UL to CAN/ULC-S104 and ANSI/UL10B, complies with NFPA 80 and NFPA 252 for application to Hollow Metal fire doors rated up to 3 Hrs., and Wood fire doors rated up to 90 minutes.

  • POSITIVE PRESSURE - CERTIFIED by UL to ANSI/UL10C, complies with IBC, NFPA 80 and NFPA 252 for application to Hollow Metal fire doors rated up to 3 Hrs., and Wood fire doors rated up to 90 minutes.

  • AIR INFILTRATION Recommended product for minimum Air Leakage and a tight seal around the perimeter of doors.

  • ACOUSTICAL TESTED to ASTM E90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements, and ASTM E2235 Standard Test Method for Determination of Decay Rates for use in Sound Insulation Test Methods. Refer to information on pages G8 thru G10 of our Gasketing catalog for test result data.

  • SMOKE & DRAFT CONTROL GASKETING. Certified by UL to ANSI/UL10C and ANSI/UL1784 Category ‘H’; complies with IBC and NFPA 105 for use on ‘S’ labeled Positive Pressure Hollow Metal fire doors rated up to 3 hours, and Wood fire doors rated up to 90 minutes.

  • ANSI/BHMA CERTIFIED. Certified Gasketing complies with American National Standard for Door Gasketing and Edge Sealing Systems ANSI/BHMA A156.22 and is listed in the BHMA Certified Products Directory.

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