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WDA

WDA

Product catalog summary

Description: The WDA long throw nozzle is engineered for large spaces such as theatres and concert halls, offering a horizontal air supply pattern. It supports both horizontal and vertical throws with low noise levels, enabling high velocities and long distances. The nozzles can be adjusted for heating or cooling to prevent draughts and enhance energy efficiency. Accessories like swivel heads and swirl discs are available to improve functionality.

Construction: Made from aluminum and sheet steel, the nozzle is painted in RAL 9010 white. It comes in various models for different mounting and connection types, including flexible duct, spiral duct, ceiling, and wall mounting. Accessories include connection spigots, mounting rings, saddle brackets, cover plates, ball impact guards, swirl discs, dampers, electric actuators, flange rings, reduction pieces, and swivel heads.

Models and Dimensions: Detailed dimensions for various models and accessories are provided, specifying sizes and configurations for different installation needs. Larger diameters are available upon request.

Technical Data: This section covers pressure loss, noise levels, maximum end velocity of the jet, maximum penetration, induction ratios, and temperature ratios. Correction factors for swirl discs and jet angles for different nozzle sizes are included.

Electric Actuators: Available for models from NW 063, with options for external or internal mounting. Actuators are specified for different voltage and activation types, with installation guidelines provided.

Specifications and Order Codes: Specification texts and order codes for the WDA models are included, detailing available configurations and customization options.

Overview: The document provides detailed technical specifications and configurations for the WDA series of long throw nozzles, designed for air-conditioning large spaces such as halls and theatres. It includes information on various models, their components, and performance metrics.

Specifications: WDA nozzles are available in sizes ranging from 31 mm to 400 mm in nozzle opening. Constructed from aluminum with a powder-coated finish in RAL 9010 white, they provide high exit velocity with low noise levels and high induction, suitable for both cooling and heating modes.

Performance Metrics: Key indicators include maximum end velocity (vmax), average end velocity (vmittel), pressure loss (∆pt), sound power level (LWA), and induction ratio (i). Correction factors for swirl discs and details on temperature differences (∆T) impact on performance are provided.

Installation and Configuration: Nozzles can be installed in various configurations, including wall, ceiling, duct, or pipe installations. Options for swivel heads, swirl discs, reduction pieces, and ball-impact guards are available. Actuators for controlling the nozzles are specified, with options for external or internal mounting.

Technical Data of Electric Actuators: Specifications for electric actuators from Belimo and Siemens are listed, including rated voltage, power consumption, torque, running time, and protection class. These actuators control the nozzle settings.

Order Details: A detailed breakdown of the order code for specifying the desired configuration of the WDA nozzles is provided, including type, model, nominal size, and additional features like paint color and actuator type.

Additional Information: Tables with volumetric flow rates at different sound levels, correction factors for various configurations, and definitions of technical terms used throughout the document are included.

Product Specifications:

SCHAKO type WDA-F-...: Designed for spiral duct connection, includes a mounting ring and connection spigot.
SCHAKO type WDA-W-...: Suitable for ceiling or wall mounting, equipped with a mounting ring and connection spigot.
SCHAKO type WDA-D-...: Intended for duct installation, comes with a mounting ring.
SCHAKO type WDA-K-...: For duct connection using a saddle bracket, not available for NW400.
SCHAKO type WDA-R-...: Features a swivel head (-SK) for adjusting air outlet direction without affecting pressure loss or noise level. Constructed from aluminum with a high-quality powder coating in RAL 9010 (white), not available for NW 050.

Additional Features:

Swirl Disc (-DS): Made of sheet steel with a powder coating in RAL 9005 (black), enhances induction and reduces throw length and end velocities for NW 063 - 200.
Reduction Piece (-RS): Connects small pipe diameters, available for WDA-F/W-... NW 063 - 200.
Electric Actuator: Available with swivel head NW 063 - 400, options for external left (-AL), external right (-AR), or internal (-AI) mounting. Voltage options include 230 V AC, 3-point activation, 24 V AC, 0 - 10V (standard), and 24 V AC, 3-point activation.
Cover Plate (-BR): Covers fixing and fastening screws, available for NW 063-200.
Damper (-DV): For manual volumetric flow adjustment, made of galvanized sheet steel, available only for NW 400.
Ball Impact Guard: Made of steel with a powder coating in RAL 9010 (white), available for NW 063-200, not for models -W and -R.
Flange Ring (-FR): Available only for WDA-K-400-SK-..., used for mounting the nozzle housing on the wall.

Catalog excerpts

05/18 - 2 Construction subject to change. Version: 13.02.2020 No return possible!

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Long throw nozzle WDA Model WDA-N-... WDA-F-... WDA-W-... WDA-D-... WDA-K-... WDA-R-... Description A horizontal supply air pattern is often required for large, high rooms such as theatres, concert halls, production halls, etc. Long throw nozzles type WDA are particularly suitable for this application. Their low noise level allows a high blow velocity, resulting in correspondingly long throw distances. The nozzles are also well suited to vertical throws. Please note, however, that nozzles which are designed for heating mode can cause draughts in cooling mode. This can be avoided if the nozzles...

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Long throw nozzle WDAModels and dimensions WDA-W-... WDA-F-... WDA-D-... WDA-K-... WDA-R-... (not possible for NW 031-050 and NW 400) 1.) 3 x indentation for slotted shallow-raised countersunk-head tapping screw DIN ISO 7051 pitch 3.9 Available sizes WDA-N-... / WDA-W-... / WDA-F-... / WDA-D-... / WDA-K-... / WDA-R-... * Larger diameters are also available upon request! Construction subject to change.

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Long throw nozzle WDA Dimensions of accessories Swivel head (-SK, NW 050 not possible) The adjustment of the nozzle can be done manually or electrically. WDA-F-. ..-SK-... / WDA-D-. ..-SK-... 1.) 3 x indentation for slotted shallow- raised counter sunk-head tapping screw DIN ISO 7051 pitch 3.9 (6 for NW400) Larger diame :ers are also available upon request! Construction subject to change.

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Long throw nozzle WDA Swivel head (-SK, NW 400) The adjustment of the nozzle can be done manually or electrically. WDA-F-400-SK-... / WDA-D-400-SK-... WDA-W-400-SK-... 1.) 6x bore ø8 for mounting on site 05/18 - 6 Construction subject to change.

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Long throw nozzle WDAElectric actuator (only available from NW 063) Mounted externally (standard) “AL” = Left-hand design (standard) 0V = nozzles on top Direction of rotation: "R" “AR” = Right-hand design 0V = nozzles on top Direction of rotation "L" For an externally fitted actuator, please make sure that the distance to the ceiling or wall is greater than 10 mm. Construction subject to change.

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Long throw nozzle WDAMounted internally (-Al, at an extra charge, NW 400 not possible): 5 "O 1 o * Larger diameters are also available u pon request! For size 400, an actuator cannot be mounted internally! Construction subject to change.

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Reduction piece (-RS) (only available for NW 063 - 200) without swivel head / with or without swirl disc WDA-W-...-RS-... with swivel head / with or without swirl disc WDA-W-...-SK-...-RS-... Construction subject to change. Damper (-DV) (only available for NW 400)

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Long throw nozzle WDA Cover plate (-BR) (concealed mounting, only NW 063-200 available) Construction subject to change.

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Long throw nozzle WDABall impact guard (-BS) WDA-D-.. .-BS-... / WDA-K-...-BS-... Number of fastening holes Construction subject to change.

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Long throw nozzle WDA WDA-D-...-SK-. ..-BS-... / WDA-F-.. .-SK-...-BS-... Construction subject to change.

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Long throw nozzle WDA WDA-K-...-SK-...-BS-... Construction subject to change.

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Long throw nozzle WDA Technical data Pressure loss and noise level WDA-...-031-... / WDA-...-050-... 05/18 - 14 Construction subject to change. Version: 13.02.2020 No return possible!

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Long throw nozzle WDAJet angle a NW Correction factor for swirl disc WDA 063 - 200 Construction subject to change.

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Long throw nozzle WDA WDA-...-RS-..., with reduction piece Correction factor for swirl disc WDA-. ..-063-. ..-RS-... / WDA-. ..-200-. ..-RS-... Construction subject to change.

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Long throw nozzle WDA WDA-...-400-... (without damper) 05/18 - 17 Construction subject to change. Version: 13.02.2020 No return possible!

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Long throw nozzle WDAMaximum end velocity of jet WDA-...-031 - 050-... Construction subject to change.

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Long throw nozzle WDA Maximum penetration WDA-...-031 - 050-... 05/18 - 19 Construction subject to change. Version: 13.02.2020 No return possible!

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Long throw nozzle WDA Model for vertical nozzle mounting for cooling mode Correction factors of the expected average velocity in vertical installation of the nozzles Calculation of the average velocity, relative to the AT for vertically integrated nozzles.Example: WDA-...-200-... at 250 m3/h, mounting height = 9.5 m, AT = - 6 K: Head height = 9.5 m - 1.8 m = 7.7 m y (m) would be 7.7 m according to SCHAKO's design program; since the nozzle is mounted horizontally according to the design program, the y value for vertically integrated nozzles must be entered under x (m)! x = 7.7 m According to the...

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Version: 13.02.2020 Construction subject to change. No return possible!

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Long throw nozzle WDA Temperature ratios WDA-...-031 -050-... 05/18 - 22 Construction subject to change. Version: 13.02.2020 No return possible!

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Long throw nozzle WDA Definitions Cooling mode Cooling mode example Assume: NW 100 Construction subject to change.

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Long throw nozzle WDA Further data Horizontal throw (free jet) WDA-...-031 - 050-... 05/18 - 24 Construction subject to change. Version: 13.02.2020 No return possible!

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Long throw nozzle WDA WDA -...-125 - 200-... 05/18 - 25 Construction subject to change. Version: 13.02.2020 No return possible!

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Long throw nozzle WDA Connection diagrams of electric actuators Make Siemens E092 (GLB 331.2.E) Three-point control OPEN/CLOSED control Make Siemens E091 (standard GLB 163.2.E) Steady control Make Siemens E090 (GLB 131.2.E) Three-point control 05/18 - 26 Construction subject to change.

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Long throw nozzle WDATechnical data of electric actuators Make Belimo E048 (NM230A-F) Rated voltage: Functional range: Power consumption - Operation: - Idle position: - Dimensioning: Torque (rated torque): Running time: Sound power level: Protection class: Degree of protection: EMC: Low voltage directive: Ambient temperature: AC 100 ... 240 V, 50 / 60 Hz AC 85 ... 265 V 2.5 W @ nominal torque 0.6 W 6 VA Min. 10 Nm at the rated voltage 150 s max. 35 dB (A) II protective insulation IP54 in all mounting positions CE according to 89 / 336 / EEC CE according to 73 / 23 / EEC -30 ... +50°C Rated voltage:...

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All SCHAKO KG catalogs and technical brochures

Archived catalogs

DISA-B
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DISA-601
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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