APPLICATION AND USE
Alpine Wind-Tite Doors are used for Store Front’s, Loading Dock’s,
Warehouses and Shipping and Receiving Platforms.
GENERAL
Rolling service doors as manufactured by Alpine Overhead
Doors, Inc. Opening preparation, miscellaneous or structural metal work,
access doors, finish or field painting, field electrical wiring, wire, conduit,
fuses and disconnect switches are in the Scope of Work of other divisons
or trades.
CURTAIN
Constructed of Interlocking, roll-formed 2 3/4” galvanized flat slats, G90
coating exterior, G60 coating interior, Structrual Quality Grade C, as per
ASTM-A653/A653-M. Slat Options: stainless steel or aluminum. Finish
options: phoshate, baked enamel or powder coated.
GALVANIZED ENDLOCKS/WINDLOCKS
Ductile Cast iron, hot-dipped galvanized endlocks/windlocks are riveted to
the ends of the slats with 1/4” rivets. Option in brass material which prevents
sparking. Furnish windlocks based on windload specifications.
BOTTOM BAR
Two roll-formed galvanized steel angles which are designed to reinforce
the bottom of the curtain. Equiped with vinyl weatherstripping which
extends into the guides. Galvanized steel as per ASTM-A653/A653-M.
BRACKETS
Steel plate not less than 1/4” thick with ball bearings at rotating support
points. When bolted to the wall the mounting angle it supports the counterbalance
assembly and forms an end enclosure. Option: Stop Lock Bearing
which prevents the door from free falling in the event of a drive operation failure.
GUIDES
Guides are designed using structural steel angles with a minimum thickness off 3/16”, minimum 1/14” slotted connections and removable bellmouth curtain stops
which allow for curtain maintenance without removal of the guides. They are equipped with vinyl weather seals
SPRING COUNTERBALANCE
To be housed in a steel pipe with a diameter and wall thickness to restrict maximum deflection to 0.03” per foot of door width. Springs are of the helical torsion
type which are designed to include an overload factor of 25% for optimum ease of operation. The springs are grease packed and mounted on a cold rolled steel
inner shaft. Spring tension is adjustable from the outside of the end bracket plate. Sealed ball bearings prevent wear on the pipe shaft. Life Cycle 17.5M thru
400M.
LOCKING
Option: 1. Can be equiped with slide locks for latching and locking the door on the coil side of the bottom bar. Option: 2. Cylinder Locks. Option: 3. Electric
Interlocks are recommended for motorized doors.
FINISH
Slats are prepared with a minimum galvanizing of G-60 (interior) and G-90 (exterior). The hoods are galvanized and other exposed ferrous surfaces are either
prime painted or powder coated.
GALVANIZING (OPTION)
Applied to the guides, brackets, pipe shafts and gears in addition to Standard Specifications. Applied where conditions of extreme or unusual atmospheric contamination
is present. As per ASTM-A123.
HOOD Hexagon (Option: Square or Round)
Made from #22 gauge galvanized steel and formed to fit the contour of the
end brackets. Optional material in stainless steel or aluminum. Equiped
with a neoprene air baffle. Finish Options: phosphate, baked enamel or
powder coated.
FASCIA GALVANIZED (OPTIONAL)
Useful where the area behind the hood is open. Especially applicable with
pre-engineered buildings.
OPERATION
Available in push-up, hand chain, hand-crank, or motor operation. For other
optional features see the motor operators section in this catalog.
Contact
us today to find out which Alpine® solution
is right for you!
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