|
Rolling Steel Doors
Serving the door industry for over fifty years
F1
Standard Flat Slat Profile.
2-3/4" High x 3/4" Depth Galvanized Finish F1-P
Perforated Flat Slat Profile.
2-3/4" High x 3/4" Depth Galvanized Finish F1-L
Slotted Flat Slat Profile.
2-3/4" High x 3/4" Depth Slots are 6" W x 1" H. Galvanized Finish F1-I
Insulated Flat Slat Profile.
2-3/4" High x 3/4" Depth Polyurethane Insulation with steel backing Galvanized Finish C1
Curved Slat Profile.
2-3/4" High x 7/8" Depth Galvanized Finish
Curtains
are to be formed of galvanized steel interlocking slats of design to resist wind pressure of 20 pounds per sq. ft. (88mph). Windlocks to be furnished where required by opening span and/or heavier loading. Slats for doors up to 18'0" wide shall be #22 U.S. Gauge. Slats for doors over 18'0" wide to be #20 or #18 U.S. Gauge as required. Steel slats to be galvanized per ASTM standards. Both ends of alternate slats to be equipped with endlocks. The bottom of each curtain is to be reinforced with two steel angles of equal weight.
Counterbalance Assembly
shall be furnished with oil tempered helical torsion springs having a 25% safety factor. Springs to be fixed to tapered cast anchors, permanently lubricated, mounted on a single solid torsion rod. Torsion rod to be attached to spring tension adjusting wheel, adjustable without hood removal. Assembly to be housed in steel pipe shaft of adequate diameter and thickness, deflection not to exceed .03" per foot of span.
Bracket plates are to be of steel plate with sealed ball bearings to support counterbalance assembly and curtain. Brackets to form end closures and support hood. Hoods are to be not lighter than 24 Gauge galvanized steel reinforced at top and bottom with rolled flanges. Over 18'0" in width, provide intermediate hood supports. Operation is to be (manual, with lift handles) (by chain and gear galvanized chain with maximum pull of 35 lbs.) (by motor operator). Locking with provision for padlocks shall be by means of (slide bolts on manual doors) (chain lock keeper on chain operated doors) (self-locking gearing on motor operated doors, plus chain lock for emergency chain, when provided). Finish for steel surfaces is to be one shop coat of prime, except on galvanized surfaces and bearings, etc.
Bottom Astragal
at the sill to be provided, using tubular neoprene.
Rolling Steel Service Doors
For Ventilation without comprimising security
.
For Visibility without comprimising security. For Maximum Thermal Effeciency and Security . For Security in Factories, Warehouses etc. For Security in Factories, Warehouses etc.
Engineering - Each United Door no matter the type or need is engineered using the latest advanced engineering method. In addition, our staff of trained professionals is available to discuss your needs and requirements.
Enlarge
Enlarge
Enlarge
Enlarge
Enlarge
Copyright © 2008 United Overhead Door Corp. All Rights Reserved
DOOR
UNITED
|