Staircase Escape route - Swing type double metal door without overlap- fire rated – American standard

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:

1, Safety

 

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:

School		Super market	Air-port building
5-stars hotel	Museum	Elderly house	Shopping mall
Stadium	Hospital	High-end office building	Hotel
Station	Office Building	exhibition center	Government building

 

Associated door hardware

HANGING - Hinge

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.

OPERATING & SECURING - Lever trim

D&D lever trim, in grade 304 stainless steel material, SSS finish, with key to lock or unlock Cylinder from the outside, conforming to ANSI/BHMA Grade 1 standard, with suitable screw pack

CONTROLING – Door closer

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.

SAFETY – Vertical Rod Exit Device

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

PROTECTING – Dust proof socket

D&D Dust proof socket, in stainless steel 304 material, matt finish, size dia25x39mm, for dia 13mm bolt.