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.
Automatic Door Bottoms serve many important functions, including blocking penetration by:
◇Sound
◇Air
◇Smoke
◇Flames
A variety of types of automatic door bottoms are available to accommodate the specific needs of your application. Our special-purpose door bottoms give optimal results to help meet the biggest challenges in sealing door perimeters:
High-level sound control achieved with unique, patented design features.
Blocking fire, smoke and toxic gases with integral intumescent material.
Minimizing door-opening force with "Light Spring" action to meet ADA access requirements.
All Automatic Door Bottoms had passed UL 3-hour fire testing.
Detailed Image
Related Imformation
Packaging&Delivery
FAQ
Contact
No desirable products?
Sourcing assistant>
How to start your business
Step 1
Find your interested products by search keywords
Step 2
Contact the supplier by clicking ”Enquire” or “request meeting” button, otherwise, you also could consult our import consultant.
Step 3
After verifying your email, get response from suppliers or our trade manager will contact you as soon as possible
Step 4
Set up meeting with the Chinese supplier without language barrier