Observation Doors

Description

This high-pressure access door contains a 4" x 2-5/8" viewport, allowing the user to easily inspect the inside of the ductwork without having to remove the door.

Panels

The observation Access Door consists of two layers of precision stamped, hot-dipped galvanized steel.

Gasket

Closed cell neoprene gasket is UL94HF1 listed with a service temperature range of (ASTM D 746) -20°F to 200 °F. The gasket is permanently bonded to the inside panel to eliminate leakage.

Springs

Zinc plated conical springs are installed, between the inner and outer door, to facilitate opening.

Knobs

Red polypropylene molded knobs have threaded metal inserts to eliminate thread stripping. Knobs are easily turned by hand. Knobs are UL94HB listed.

Bolts

Zinc plated carriage bolts are clinched and sealed to the inner door.

Glass

Safety glass (1/4") is permanently sealed with silicone. Plexi-glass may be installed if requested.

Clips

Hot-dipped galvanized steel clips mechanically fasten the safety glass in place.

Template

Self adhesive template is provided for the exact size of duct opening required.