YDB303
YDB303
Automatic Door Bottoms

- AVAILABLE FINISHES: A, C, D
- WIDTH: 19/20” (24.1 mm)
- HEIGHT: 1-3/4” (44.5 mm)

Certificate:
- UL
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Product Description

These Automatic Door Bottoms ensure an efficient seal with an adjustable plunger that is compressed against the frame as the door is closed, activating a concealed flat spring mechanism. This mechanism drops the seal smoothly from the housing in a scissor-like motion. The seal compresses on either even or uneven surfaces and retracts automatically when the door is opened.


YDB303 Automatic Door Bottom has a drop down seal which is automatically lowered when the door is closed to seal the gap.Casing is made of aluminum mill, is fully mortised and will not affect the appearance of the door, ideal for decorative doors, upscale condos, dormitories, commercial buildings and luxury hotels. This model is used with 1-3/4" thick doors. Maximum order length is 72".

Retainer Material
Aluminum
Finish
Mill Finish/Clear Anodized/Dark Bronze Anodized
Door Type
Wooden Door
Seal Type
Vinyl Rubber Seal
Mounting Type
Full Mortised
Maximum Drop Size
0.75"(19.05mm)
Minimum Door Thickness
1-3/4"(44.45mm)
Functions
Blocking penetration by: Sound,Air,Smoke,Flames
Length
Standard 36", 48"; Maximum 72"
Accessories
End caps and Screws are provided
Certificate
Fire Rated - UL 10B/10C


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