NCA S900 - Volume control and shut-off

Product Code: NCA S900

General purpose light to medium duty volume control damper.

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Width x height / Diameter

S900 model

Duct connection

S900 material

S900 stainless grade

Control option (standard unless stated)

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Description
About NCA S900 - Volume control and shut-off

General purpose volume control and shut-off dampers.

NCA Series 900 dampers are slimline units intended for low/medium velocity applications, and are available in two variants:
- S900B: Standard volume control dampers, designed for balancing applications where a high level of shut-off is not required - Galvanised steel throughout as standard, stainless steel optional.
- S900C: Shut-off dampers; fitted with additional seals, shut-off dampers have far lower leakage levels than standard VCDs - Galvanised steel frame and case as standard, stainless steel optional, blades are aluminium with a silicone rubber tip seal.
Utilising the HVC standard out-of-airstream linkage, all gears are protected from dust and dirt by being positioned within the channel outer frame, making S900 dampers less susceptible to requiring frequent maintenance than rival units where the linkage is within the airstream.

A range of control options are available for your new S900 damper, from basic manual plastic handles and cast aluminium locking quadrants, right up to factory fitted electronic or pneumatic actuators. ATEX rated actuators can be supplied if required.

We hold large quantities of popular sizes of circular spigotted volume control dampers in stock for immediate delivery, otherwise units are manufactured in house to your requirements, with our industry beating lead times.

Please download the product PDF for detailed information and ordering codes.
Specification
NCA S900 - Volume control and shut-off Specifications
Design, construction and finish:

Material: Galvanised/stainless steel or aluminium based on specification
Standard duct connection: Square flanged
Optional duct connections: Square, circular or flat oval spigot
Standard control method: VCD - Manual plastic handle. Shut-off damper - Extended spindle
Standard finish: Bare metal
Properties:

Free area: 80% maximum
Mass/m2: Model A - 16 kg, Models B, C and D - 24 kg
Recommended use:

Internal/External use: Internal
Recommended use: Volume control
Information above is for quick reference purposes only, please see the full product datasheet for detailed information
Downloads
Downloads for NCA S900 - Volume control and shut-off
- NCA Series 900 - Product datasheet
- O&M manual - Volume control dampers

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NCA S900 - Volume control and shut-off