STJH-VARIABLE-AIR-VOLUME-CONTROL-DAMPER-DN400

Variable Air Volume Control Damper DN400 High-Capacity

Large circular VAV unit for high-volume supply or extract branches.

Wide passage accommodates larger branch duties.
Actual-flow feedback helps coordinate connected zones.

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Produkteinführung

This 400 mm terminal provides the broadest connection in the selected circular range. A motorized blade controls the main air path while differential-pressure sensing supplies feedback to the electronic controller. The larger casing suits centralized branches upstream of several distribution points.

Key Features

Wide passage accommodates larger branch duties.
Actual-flow feedback helps coordinate connected zones.

Technische Parameter

Connection Diameter	400 mm
Shell Material	Galvanized sheet steel
Blade Configuration	Single circular modulating blade
Measurement Principle	Differential pressure
Dynamic Modulation Range	Approximately 10–100% nominal airflow
Maximum Differential Pressure	1000 Pa
Operating Ambient	10–50 °C
Controller Power	24 V AC/DC option
External Setpoint	0–10 V DC option
Customisierung	Available for the connected terminal load and operating environment.

Applications

Large cleanroom suite supply
High-volume return branches

Solutions for Your Application

Several downstream terminals change demand together.

The larger controlled branch can track an aggregate airflow command.

A full-size branch needs clear service access.

The actuator and pickup connections remain on the outside of the wide casing.

Verfügbare Optionen

Remote control component arrangement
Downstream acoustic attenuation

Planning a Variable Air Volume Control Damper DN400 High-Capacity specification?

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