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Aluminum Glass Doors / 521 Series

The 521 Series is a sectional aluminum door appropriate for environments where maximum light infiltration and/or visual access is required. Designed to fit openings up to 26'2" (7976 mm) wide and 20'1" (6121mm) high, the 521 Series features a wide, 2-3/4" (70mm) center stile, 3-3/4" (95mm) or 4-1/2" (114mm) bottom rail, based on door size.

Features

Section thickness

1 3/4" (45 mm)

Maximum standard width

26'2" (7976 mm)

Maximum standard height

20'1" (6121 mm)

Material

6063-T6 aluminum

Standard finish

204R-1 clear anodized (painted white at no charge)

Center stile width

2.712" (69 mm)

End stile width

3.350" (85 mm)

Top rail width

2 3/8" (60 mm) or3 3/4" (95 mm)

Top intermediate rail width

2 1/8" (54 mm)

Bottom intermediate rail width

1 19/32" (40 mm)

Bottom rail width

3 3/4" (95 mm) or 4 1/2" (114 mm)

Weatherseals

Bottom, flexible PVC

Standard springs

10,000 cycle

Track

2" (51 mm)

Mounting

Angle

Operation

Manual pull rope

Hinges and fixtures

Galvanized steel

Lock

Galvanized,interior-mounted single unit

Options
  • Glazing options*: 1 ⁄8" (3 mm) DSB; 1⁄8" (3 mm) or 1⁄4" (6 mm) plexiglas; 1⁄8" (3 mm) or 1⁄4" (6 mm) tempered; 1⁄8" (3 mm) or 1⁄4" (6 mm) clear lexan; 1⁄4" (6 mm) wire glass, 1/2” (12mm) insulated glass
  • Electric operator or chain hoist
  • Bottom sensing edge
  • 3" track
  • Bracket mounting (not available on full vertical door tracks)
  • Higher-cycle springs in 25k, 50k, 75k, 100k cycles
  • Exhaust ports
  • 197 standard powder or color matched to architect specifications
  • Four-section pass door
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