NGP-420NA-Automatic-Door-Bottom
NGP-420N
NGP-420NA-Automatic-Door-Bottom
NGP-420N

NGP (National Guard) 420N Heavy-Duty Surface Mounted Automatic Door Bottom

Usually Ships: 3-5 Business Days
  • Surface-mounted, 7/8″ drop
  • Mounts on push side of door
  • Fire-rated, air infiltration, and sound tested

Available Options:

Product Overview

National Guard Products (NGP) 420N Heavy Duty Surface Automatic Door Bottom with Neoprene Seal

  • 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
  • Aluminum alloy 6063, T5 temper
  • Synthetic rubber polymer blend: PVC, Nitrile rubber (NBR), and Chloroprene closed cell advanced elastomeric foam
  • Very good abrasion resistance, tensile strength and memory
  • Flame resistant
  • Moisture resistant
  • Temperature range -20°F to 200°F
  • Good resistance to ozone, sunlight and aging
  • Mounts on push side of door
  • Use with a threshold for maximum sealing capability
  • Nylon brush recommended for carpet applications where no threshold is provided
  • Specify exact net length required to avoid field sizing
  • 36″ and longer may be cut up to 4″ in the field, under 36″ should not be cut in the field, order net length
  • Minimum length 11″, maximum length 60″
  • End caps furnished standard
  • For half mortise applications specify HM in item number prior to finish (ie: 420NHMDKB)
  • 7/8″ max drop
  • Anodized aluminum or DKB finish
Brand

Finishes

Clear Anodized Aluminum, DKB – Dark Bronze
Length

36", 48"
Fire Rating

Fire Rated – UL10C – Positive Pressure

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NGP (National Guard) 420N Heavy-Duty Surface Mounted Automatic Door Bottom