STJH-BACKDRAFT-DAMPER-HORIZONTAL-UPFLOW

Backdraft Damper Horizontal-Mount Vertical-Upflow

Spring-assisted backflow protection for an upward exhaust path.

Opening assistance helps the blades respond to a small forward pressure.
A simple mechanical arrangement avoids an electrical control connection.

商品紹介

A horizontal frame supports lightweight blades that lift with rising air. When upward flow stops, the assembly closes automatically. Its duct-insert construction is intended for a vertical air path rather than a wall opening.

主要な特徴

Opening assistance helps the blades respond to a small forward pressure.
A simple mechanical arrangement avoids an electrical control connection.

技術的なパラメータ

Mounting Plane	Horizontal
Forward Airflow	Vertically upward
Frame Material	Galvanized steel
Blade Material	Aluminum
Opening Assistance	Spring assisted
Closing Action	Gravity
Maximum Velocity	1500 fpm
Maximum Back Pressure	2 in. w.g.
Typical Start-Open Pressure	Approximately 0.01 in. w.g.; size dependent
カスタマイズ	Available for the intended duct dimensions and exhaust arrangement.

Applications

Roof exhaust connections
Upward discharge branches

Solutions for Your Application

Outdoor air can descend through a stopped exhaust fan.

Gravity closes the blades when upward discharge ceases.

A horizontal damper may resist initial opening.

The spring-assisted configuration helps initiate blade lift in the intended direction.

利用可能なオプション

Duct opening dimensions
Installation frame dimensions

Planning a Backdraft Damper Horizontal-Mount Vertical-Upflow specification?

寸法、設置条件、性能目標、必要な表面仕上げをお送りください。

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