Finish:
All door face hardware, tracks and track mounting hardware and torsion assembly
mounting brackets to have a zinc coating of 380g./sq.m. (1.25 oz/sq.ft.)
- ASTM A525 - 9 lb.
Track:
2.0mm (14ga) commercial galvanized track, formed track 54mm (2 1/8")
overall outside dimension. Vertical tracks sloped for weather tight closing;
curves 305mm (12") or 400mm (16") radius, selection dependant on
available headroom.
Track Brackets:
2.0mm (14ga) thick commercially galvanized steel, rib reinforced.
Continuous Track Angle (optional at additional cost):
Continuous track anglebolted adjustable type, fabricated from 2.0mm (14ga)
commercially galvanized steel for full height of opening, adjustable to ensure
weathertight seal. Continuous angle to provide continuous track support for
full opening height.
Track Hangers:
Min. 32 x 32mm (1 1/4" x 1 1/4") x 2.0mm (14ga) thick commercially-galvanized
perforated steel angles.
Rollers:
Steel rollers 46mm (1 13/16") diameter with ten 6mm (1/4") diameter
ball bearings, 11mm (7/16") diameter roller axles and inner and outer
ball races of hardened steel.
Roller Brackets:
Fabricated from 2.4mm (14ga) thick commercially galvanized steel.
Counter Balance:
Helically wound torsion springs, manufactured from oil tempered spring wire,
stress relieved, minimum 10,000 cycles. Aluminum diecast grooved drums
and flexible, galvanized aircraft cables, 7x19 construction, mounted on
25mm (1") tubular steel, 2.0mm (14ga) min OR 25mm (1") CRS solid
shaft keyed full length and mounted on ball bearings.
Locking:
Interior slide bolt type.
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