Fire Rated Concealed Drop Down Seal Automatic Door Bottom Seal 915mm

Features:

A concealed, automatic door bottom seal that is spring loaded to lift clear of the floor when the do or is opened.

It is acoustically designed, featuring silicon gaskets for medium temperature smoke and fire door applications.

Operated automatically by pressure against the door jamb on its adjustable strike.

lt can also be fitted into the bottom rail of a meta door by the fabricator.

Location: Fully mortised into the groove in the bottom of single and double butt-hinged door.

Installation: Fixing screws are supplied. This seal is mortised. Pre-drilled radiuses end plates are supplied which also secure the product in place. (Square end plates availableon request).

Seal: Silicon Rubber in gray color. Can change it tothe fire retadant silicone strips if need use it for Fire door, pirce is US$0.2 more expensive than normal silicone strips.

The sealing gap: 3-14 mm (012"- 0.55").

Available length: 250-2500mm.

Finish: Clear anodized aluminum

Installation instruction:

Step 1. Make sure the install direction. The end with copper bolt is near to the frame with hinges and the hermetic seal face to floor.
Step 2. Make sure the bottom seal length can fit the door:
The length of BH-M021 bottom seal should be 3-5mm shorter than width of the door if need to make the side plates implant of the door leaf. If not, the length should be same as the door width.
Step3. According to the frame and door size, cut the end without copper bolt to get the proper length.
Step4. Adjust : After installation. Open the door and turn on the copper bolt out or in to adjust the drop down parts to touch the floor slightly when the door closed.

Note: if there are too few ejections, the sealing effect cannot be reached; If there are too many ejections, it is easy to scratch with the floor and damaged the seals when closing the door, so it needs to be repeatedly adjusted to achieve the best sealing effect.

Specifications:

Other similar items for reference:

Production line:

Foshan Bohua Decoration Materials Co., Ltd. is a supplier integrating research and development, production and sales, focusing on providing comprehensive sealing and sound insulation solutions for the door and window industry.

With it's own scientific and technological advantages, relying on multiple technology research and development, it has established an excellent production and manufacturing team.The constantly updated products, more and more abundant product types and functions make the company stand out in the fierce market competition, and the products are exported to all over the world. It has won the favor of leading enterprises in the door and window manufacturing industry, door and window hardware industry, large real estate developers, large decoration engineering companies and other industries, and has established a strategic partnership with them.

For more than ten years, it has never stopped exploring and innovating, and has obtained more than 20 patent certificates for various inventions, utility models and appearances. Obtained the title of High-Tech Enterprise (GR201844000531), passed the ISO 9001 :2015 quality management system certification, and became a member of the Intellectual Property Branch of China Commercial Federation.

The main products are: wooden door sealing strip series, fireproof sealing strip series, automatic drop down door bottom seal series, cabinet wardrobe dustproof strip series and other various rubber plastic hardware sealing and sound insulation products. Our products are widely used in soundproof wooden doors and windows, aluminum alloy doors and windows, fire doors, cabinet and wardrobes, furniture materials, hotel sound insulation project, urification project, hardware machinery and public facilities and so on.

Welcome to offering design drawings or samples to customize all kinds of rubber plastic hardware sealing products!