Air Louvers VLFIGMUL Square Profile Through Bolted Metal Vision Lite for 3/16″ to 1-11/16″ Glazing or Non Standard Door Thickness w/ Framed Mullions

Air Louvers VLFIG ThruBolt™ Vision Lites with Mullions are designed for commercial hollow metal doors and commercial wood doors requiring insulated glass units, thicker glazing, or non-standard door constructions. Built on the VLFIG ThruBolt™ platform, this variant incorporates welded steel mullions to create a divided lite appearance while maintaining the use of a single glazing pane. The ThruBolt™ installation method provides secure mounting while maintaining maximum exposed glazing area and architectural consistency for commercial and institutional openings.

Specifications
Application: 1-3/4″” doors with 5/16″” – 1-11/16″” glazing
Application: 1″” – 3″” doors with 3/16″” – 1-11/16″” glazing
Frame material: 18 gauge cold rolled steel
Standard finish: Mineral bronze powder coat
Fasteners: #8-32 flathead Phillips thru-bolts with blank head on one side
Minimum size: 4″” x 4″”
Maximum size: Based on glazing listing and door manufacturer approval
Door cutout: Order size (W × H)
Glazing size: Order size minus 1/4″”
Exposed glazing: Order size minus 1″”
Fire ratings: Up to 180 minutes depending on glazing size and listing
UL listings: ANSI/UL 10B, ANSI/UL 10C, CAN/ULC S104
Mullion width: 1″”
Mullion depth: 5/8″”
Mullion construction: Welded to both sides of frame and butted to glass
Mullion configurations: Multiple column and row configurations available
Optional mullion sizes: 1/2″” × 1/2″”, 1/2″” × 3/4″”
Optional materials: 304 stainless steel, galvanneal steel, zinc-plated steel
Compatible fire-rated glazing: FireLite, Pyran Platinum F, FireLite Plus, Fireglass, WireShield
Compatible non-rated glazing: Tempered, ArmrShield series, BRG glazing
Optional fasteners: Torx screws
PAK options: Vision lite, glazing and glazing tape kits available

Downloads

Vision-Lite-VLFIG-Leadlined-Submittal.pdf