Top-feeding air series

Round Electric Air Volume Damper - On/Off Type

Round Electric Air Volume Damper - On/Off Type - view 2

Round Electric Air Volume Damper, On/Off Type

Model: Ø75mm, Ø110mm, Ø160mm, Ø200mm
Specification: AC220V power supply, 4Nm torque, running time 10s; Two-position control (fully open / fully closed); Plug spigot connection, matched with circular ventilation duct; Used for automatic air on-off control of fresh air branch pipelines
Size: ABS/stainless steel/galvanized
Description: Round electric air volume damper with 220V actuator, 4Nm torque and 10s running time. On/off motorised duct valve for fresh air zone control. Wholesale and OEM from GUANDE China.
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Round Electric Air Volume Damper, On/Off Type — 220V Motorised Duct Valve

A motorised on/off volume damper for circular ventilation ducts. Powered from AC220V with 4 Nm torque and a 10-second running time, the actuator drives the blade fully open or fully closed on command, which lets a branch duct be shut off automatically when its zone is not in use. The plug-spigot body slots straight into the duct run.

Key Features

AC220V actuator — 4 Nm torque, 10 s running time, two-position control
On/off operation — fully open or fully closed, ideal for zone shut-off
Plug spigot connection — inserts into circular ductwork without adapters
Material options — ABS, stainless steel or galvanised body per application
Automation-ready — switched from a thermostat, timer or building control signal

Technical Specifications

Item	Specification
Available Sizes / Models	Ø75mm, Ø110mm, Ø160mm, Ø200mm
Description	AC220V power supply, 4Nm torque, running time 10s; Two-position control (fully open / fully closed); Plug spigot connection, matched with circular ventilation duct; Used for automatic air on-off control of fresh air branch pipelines
Material / Construction	ABS/stainless steel/galvanized

Typical Applications

Automatic shut-off of fresh air branches in unused rooms
Zone control in apartments, offices and hotel rooms
Integration with BMS or smart-home ventilation control

System Matching

Installs into HDPE corrugated pipe or flexible duct. For manually operated branches use the round manual air volume damper instead.

FAQ

Q: What voltage does the actuator need?
A: AC220V, as listed in the specification table below.

Q: How long does it take to open or close?
A: Approximately 10 seconds from end to end.

Q: Can it modulate rather than just open and close?
A: This is a two-position on/off unit. Ask our team about modulating options if proportional control is required.

Round Electric Air Volume Damper - On/Off Type