Jet Nozzle Diffuser

Product CodeDiameter
VJN6150
VJN8200
VJN10250
VJN12300
VJN14350
VJN16400
*Lead time applies

PRODUCT INFORMATION

ACOUSTICALLY AND TECHNICALLY OPTIMISED, FOR INSTALLATION IN WALLS AND ON RECTANGULAR AND CIRCULAR DUCTS, ADJUSTABLE – MADE OF PLASTIC
The new VJN jet nozzle offers improved acoustic properties and is also more energy-efficient
Nominal sizes: 160, 200, 250, 315 and 400 mm
Volume flow rate range 20 – 1000 l/s or 72 – 3600 m³/h
Visible parts made of high-grade polymer in RAL white aluminium or pure white
Optimised nozzle contours
Discharge angle indication, discharge angle limiting and setting from –30 to +30° on a concealed scale
Easy to remove face cover ring with bayonet fixing

Optional equipment and accessories
5 nominal sizes, each with a circular spigot or, as an option, with a connection piece for circular or rectangular ducts
Swirl unit with acoustically optimised air control blades with unique saw tooth edges and cap for two-step reduction of the throw distance
External electric actuator of compact height
Electric actuator allows for integration with the central BMS
Internal thermal actuator with shape memory alloy for the self-powered adjustment of the discharge angle
All variants also available with outer casing

Variants
Connection

For circular ducts (direct connection)
K: For rectangular ducts
R: For circular ducts

Actuator
Manual adjustment
E*: Electric actuator
T1: Thermal actuator

Parts and characteristics
Nozzle with acoustically optimised contours and adjustable discharge angle (from –30 to +30°, in increments of 5°)
Flange with position indicator (scale) and adjustable end positions, concealed by a face cover ring
Spherical nozzle casing with spigot
Outer casing (optional)
Connection piece for circular and rectangular ducts (optional)
Actuator (optional)

Attachments
C: Outer casing

Accessories
Swirl unit and cap for throw distance reduction

Useful additions
TDC temperature difference control module

Construction features
Spigot suitable for circular ducts to EN 1506 or EN 13180
Spigot with double lip seal

Materials and surfaces
Flange, face cover ring, swirl unit and cap made of ABS plastic, UL 94, V-0, flame retardant
Spherical nozzle casing made of galvanised sheet steel
Connection pieces for circular or rectangular ducts made of galvanised sheet steel
Double lip seal made of rubber
Exposed surface is pure white, similar to RAL 9010
S1: White aluminium, similar to RAL 9006

Standards and guidelines
Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance
Maintenance-free as construction and materials are not subject to wear
Inspection and cleaning to VDI 6022