1400 Slimline Volume Control Damper

The 1400 Slimline Volume Control Damper is designed to balance and/or control airflow through ducts.

There are three versions available: unsealed, semi-sealed, and fully sealed. Our standard manufacture is galvanised mild steel frames and blades, but options for stainless steel and aluminium blades are available.

Linkage is direct drive, which gives close control either with an Allen key locking handle or a bare shaft suitable for motorisation by others.

The 1400 series is supplied flanged for square/rectangular or spigotted for circular or flat oval ductwork.

For Class C low leakage, the dampers are supplied with a casing complete with spigots and are also available with the unsealed, semi-sealed or fully sealed options.

Downloads

Features

Airfoil section double skin galvanised mild steel blades, optional stainless steel or aluminium
Opposed blade operation
Blades fitted with polypropylene end caps
Unsealed, sealed, and semi-sealed models
Manual, motorised, and bare shaft options
Positive, side-mounted drive linkage ensures accurate airflow control
Sizes from 100 – 1000mm and multi-module assemblies
Manual operator includes position indicator and tamper-proof lock
Flanged and spigoted casing options
Fully tested for leakage, sound and airflow performance

Tech Specs

Blades Opposed Blades – Standard
Parallel Blades – Optional

Width 50 mm

Centres 50 mm

1.0 mm Galvanised Mild Steel – Standard (not available on fully sealed units)

1.0 mm Grade 304 Stainless Steel – Optional (not available on fully sealed units).

1.2 mm Extruded Aluminium – Optional (available on all models).

All fitted with polypropylene end caps.

Frame Flange Units – Width 66 mm
Spigotted – Non Welded – Width 70 mm

Spigotted – Fully Welded – Width 70 mm

1.2mm Galvanised Mild Steel – Standard

Flange Width 30 mm – standard [1461]
25 mm [1491] and 35 mm [1441] optional

Corners Flanged and Non Welded Units – Die formed corner channels, button locked for strength and rigidity
Welded Unit – Welded mitre corners with aluminium aerosol spray

Linkage External, enclosed within the frame, out of airstream
Zinc plated mild steel and Delrin 500P NC010

Bearings 12.7mm diameter Nylon
Axles Interference fit Delrin 500P NC010
Seals Unsealed – Standard
Semi sealed – Side Jamb Seals – Grade 301 S21 to BS EN 10088-2 1.4310 Stainless Steel – cambered profile

Fully sealed – Side Jamb Seals & Blade Seals – Composite PVC material to an aerodynamic profile (Available with Aluminium blades only)

Controls Manual – Tamperproof moulded handle with position indicator – Standard
Hand Locking Quadrant – Mild Steel – Optional

Drive Spindle – 10mm diameter Zinc Plated Mild Steel suitable for motorisation by others. – Optional

Sills For fully sealed options only with height increments not in 50mm a sill will be fitted on the bottom of the damper.

Dimensions

Duct Sizes
Single Sections
Flanged Units – 100mm x 100mm to 1000mm x 1000mm

Spigot Non Weld/Crimped (Class B) Units – 100mm x 100mm to 500mm x500mm or 100mm diameter to 500mm diameter

Spigot Fully Welded (Class C) Units – Square/Rectangular/Flat Oval – 100mm x 100mm to 1000mm x 1000mm, or 100mm diameter to 1000mm diameter

Multi Sections
Flanged Units – 2000mm x unlimited maximum

Spigot Fully Welded (Class C) Units – Square/Rectangular – 2000mm x 2000mm, Circular max 1500mm diameter, Flat Oval max 1500mm wide x 1000mm high.