Views:13 Author:D and D Hardware Publish Time: 2021-01-25 Origin:D and D Hardware
Staircase Escape Route - Swing Type Double Metal Door without Overlap- Fire Rated – American Standard
Security, safety,function and convenience are the foundation of door hardware that architects, builders, and designers, and end users expect from D and D Hardware. D and D door hardware is manufactured to meet the needs of commercial building. D and D Hardware can provide complete door hardware solutions for your Double Metal Door.
Door design considerations mainly as below:
1, Where the building and inner door located
2, Direction of the flow of people in the building
3, Number of people the building expecting
4, It is a fire resistant and heat insulated door
Main concern points for this configuration are:
Door opening & closing description:
Outside lever trim retracts latch bolt. Key outside locks or unlocks lever.
Inside vertical rod exit hardware always free for egress.
Door closer self-closing the door anytime it opens.
This configuration is suitable for below applications:
High-end Office Building
Associated door hardware
01 HANGING - Hinge-DDSS001-ANSI-2
D&D 4.5x4.5x3.4-2 ball bearing butt hinge can be in grade 201/304/316 stainless steel material, square corner, template drilled, button tipped five knuckles, UL listed (3 hour fire rated), with UL Mark, ANSI/BHMA A156.1 Grade 2 certified, suitable for use on fire/non-fire rated/ smoke check doors up to 120 kg, with suitable screw pack.
02 OPERATING & SECURING - Lever trim-DDPD018 & DDLC011
D&D lever trim, in grade 304 stainless steel/Zinc material, SSS/Silver finish, with key to lock or unlock Cylinder from the outside, conforming to ANSI/BHMA Grade 1 standard, with suitable screw pack.
03 CONTROLING – Door closer-DDDC017
D&D adjustable power size 3-4, suitable for max door width from 950mm to 1100mm, suitable for max door weight from 60kg to 80kg, size L248xW44.5xH72mm, in aluminum material silver finish, UL listed (3 hour fire rated), parallel arm, non-hold open function, adjustable closing and latching speed, standard top jamb, push side installation, packed with suitable screw pack.
04 SAFETY – Vertical Rod Exit Device-DDPD004
D&D Vertical Rod Exit Device- half-length pressing touch bar with deadlocking latch bolt, non-handed, inside always free to exit by pressing the bar, suitable for doors width from 650mm to 1000mm, door thickness from 44.5mm to 50mm, standard door height is 2100mm (door higher than standard, please contact D&D), suitable for use of External locking attachment (such as lever trim). UL listed (3 hour fire rated), comply to ANSI/BHMA Grade 1. Suitable for use on fire rated doors.
05 PROTECTING – Dust proof socket-DDDP002
D&D Dust proof socket, in stainless steel 304 material, matt finish, size dia25x39mm, for dia 13mm bolt.
D and D can assist you find the correct Door Hardware Solution according to your building type, use requirements, the location of the door and other factors.
Please advise your requirement so we can send solution for you.