STJH-OPPOSED-BLADE-VOLUME-DAMPER-300X300-STEEL

Opposed Blade Volume Control Damper 300 x 300 mm Steel

Small steel opposed-blade damper for fine balancing behind a grille.

Opposed motion meters air through multiple openings.
Slotted operator accepts a standard flat screwdriver.

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Product Introduction

Linked blades rotate in opposite directions inside a 300 mm square frame. A slotted room-side operator moves the blade group together, allowing airflow trimming without individually resetting the outlet louvers.

Key Features

Opposed motion meters air through multiple openings.
Slotted operator accepts a standard flat screwdriver.

Technical Parameters

Nominal Size	300 x 300 mm
Construction	Coated steel
Blade Motion	Opposed
Linkage	Simultaneous linked operation
Operator	Slotted lever
Tool Interface	Flat screwdriver
Mounting	Grille or duct
Function	Manual volume adjustment
Drive Type	Unpowered mechanical
Customization	Available for the intended grille interface and operating environment.

Applications

Small diffuser balancing
Terminal grille airflow trimming

Solutions for Your Application

Changing the directional louvers also changes the room air pattern.

A separate rear damper adjusts volume while leaving the face louvers in position.

Available Options

Face-accessible lever operator
Duct mounting frame

Planning a Opposed Blade Volume Control Damper 300 x 300 mm Steel specification?

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