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Duct Mounted Fans

Multiflow Series - TDE Series

  Features

  • The Multiflow TDE 500 to 710 range consist of fully cased, cylindrical models with circular mounting flanges at both ends and a wired terminal box.
  • Mixed flow non-stall airflow properties and a non-overloading absorbed power curve allow a wide range of operating performance.
  • The Multiflow TDE mixed flow fans can typically provide 25% more performance than many conventional fixed blade fans or 25% less space for the same performance.
  • Multiflow, mixed flow performance can provide clear benefits over centrifugal and axial fans.

  Construction

  • The guide vanes support the drive motor and provide enhanced airflow performance.
  • Galvanised steel housing with modern flange connections
  • Multiflow’s unique, adjustable blade angle mixed flow impeller.

  Motors

  • Electricity supply - Single phase motors suitable for 220 or 240V and 3-phase motors suitable for 380 to415V.
  • Single phase variable speed controllable motors with high resistance rotors are available.
  • The use of stepped transformers or inverter speed control is also recommended.
  • Specification - Output to BS 5000 Part 10, performance to BS 4999 Part 101 and IEC 34-1, dimensions to BS 4999 Part 141 and IEC 72

Testing

  • Air flow tests to ISO 5801:1997 (incorporating BS 848 Part 1,1997)
  • Noise data tests to BS 848 Part 2,1985 (Inlet and Outlet sides)

  Special Features

  • The required performance can be achieved from a smaller fan size due to the airstream leaving a Multiflow TDE impeller being more axially orientated.
  • The casing can then be closer to the impeller periphery, without incurring losses and retaining excellent air performance, power and sound levels.
  • The smaller fan size can be used in confined spaces.
  • Also, the relatively wide air passage design of the impeller results in greater air movement.

Pressure Values

  • Achieved static pressure is the more commonly used pressure for fans of this type which the accompanying performance curves show.
  • Should the fan total pressure be required, use the formula:

  Dimensions

 
          Casing Impeller  
Model TDE A B C D dia. mm dia. mm r.p.m.
500 500 585 400 21 500 400 1440 & 960
560 560 645 400 21 560 450
630 630 715 500 21 630 500
710 710 795 500 21 710 560
 
 
 

  Ancillaries

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Mini Cleanpack Fan Filters

  Features

  • The Cleanpack Mini Series is designed to provide filtered fresh air to offices, computer rooms etc.

  Construction

  • The HIT Series in line fan is enclosed in a galvanised steel box with a pleated washable filter 45mm thick and a GRA aluminium grille on either side.

  Dimensions

  Technical Data

Model m3/hr Hz V W r.p.m. dB(A) @1m Kg
CPM 100 191 50 230 59 2641 58 2.5

  Auto Cad

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Cleanpack Fan Filters

  Features

  • The CLEANPACK range of Standard and Heavy-Duty fan-filters units meet the demands of varied applications requiring dust free and clean air conditions utilising standard production componentry such as fans and filters.
  • Manufactured in three dimensions, the range extends to six variations by selection of appropriate filtration media allowing for standard dust protection with filter efficiencies ranging from 80% through to 99%.
  • The units are designed to accept any standard dimension proprietary filter combination.
  • The Primary element is of the pleated washable type, with Secondary elements either HEPA, Micro-Cell or Hi-Cell.

  Construction

  • The unit is fitted with state-of-the-art direct driven forward curved centrifugal fans.
  • Constructed from pre-galvanised steel sheet these units are Aluminium weather louvres at Inlet and single-deflection aluminium grilles at Discharge are standard

  Motors

  • Fans are fitted with 230/150Hz IP 54 speed controllable motors as standard. An external IP55 terminal box is provided for electrical connection.

  Dimensions

 
Unit A B C
CP1-S 515 515 1000
CP2-S 515 615 1000
CP3-S 615 615 1000
CP4-H 615 615 1400
CP5-H 615 615 1400
CP6-H 700 700 1400

  Technical Data

    Volume     dB(A) Prim Sec
Unit Fan m3/s kW r.p.m. @3m filter filter
CP1-S

7/7

0.40 0.16 1400 64 BFW  
CP2-S 9/7 0.60 0.37 900 63 BFW  
CP3-S 10/10 0.94 0.37 900 66 BFW  
CP4-H 9/9 0.60 0.55 1400 72 BFW Hi-Cell
CP5-H 10/8 0.80 0.55 1400 74 BFW Micro-Cell
CP6-H 10/10

0.94

0.55 1400 76 BFW

Hepa

  Auto Cad

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Multi-Directional Box Fans - MDB Series

 

  Features

  • The MDB Series of duct mounted centrifugal fans is suitable for supply or exhaust from applications ranging from residential, through commercial, to industrial.

  Construction

  • Aluminium extruded tubular frame incorporating 4 removable pre-galvanised panels for multi-directional airflow.
  • Acoustically lined inner skin for optimum noise reduction.
  • Backward curved centrifugal impellers.

  Motors

  • Type - direct-driven external rotor.
  • Electricity supply - single or three-phase to suit a wide range of voltages and frequencies.
  • Bearings - sealed-for-life ball.
  • External rotor motors are fully speed-controllable using electronic or auto-transformer controllers.

Internal Thermal Protection

  • Manual - reset type are fitted as standard to external rotor motors.

Testing

  • Air flow tests to BS848 : Part 1, 1980 and AMCA 210-85.
  • Noise data tests to BS848 : Part 2, 1985.

  Special Features

  • Most three-phase external rotor motors are 2-speed star/delta design.
  • Fan units are light in weight and can be mounted at any angle.

  Dimensions

 
  Diminsions, mm  
Model MDB A B Kg
350 500 500 30
400 670 670 36
450 670 670 50
500 670 670 58
560 800 800 80
630 800 800 105

  Suggested Specifications

  • The MDB Centrifugal Fans shall be as designed and manufactured by Elta SA and be of the model numbers shown on the schedule/drawings.
  • The backward-curved centrifugal impellers shall be driven by external rotor motors.
  • All models shall be fully tested to BS848 : Part 1, 1980 for air flow and BS848:Part 2, 1985 for noise

  Technical Data

 

  Performance

Note

Performance curves shown are based on nominal speeds.   As motor speeds may vary from one manufacturer to another and from one motor type to anaother, it is possible actual fan speeds may differ and, thereby, the performance of the fan.

  Ancillaries

  Auto Cad

 Pdf

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Acoustic Cabinet Fans - CAB Series

  Features

  • The CAB range of acoustically lined cabinet fans, comprising of six nominal sizes, are specifically designed to provide extract ventilation solutions for noise sensitive environments, such as commercial offices, restaurants and cafes, libraries and public buildings etc.
  • The models are supplied with a remote mounting wiring outlet box to facilitate installation and connection to external controls.
  • Air volume performance ranges from 200 up to 3950 m3/hr.

  Construction

  • The fan casings are manufactured from heavy gauge galvanised sheet steel and internally lined with a dense Melinex (M1 type) acoustic insulation of 50mm thickness.
  • All models incorporate inlet and discharge circular duct connection flanges with integrated rubber air seal.
  • The product is designed for the cover to be removed for access to the motor/impeller without removing the fan casing from the ducting.
  • This CAB fan cover is supplied as standard with “quick-fix” fixings to enable fast removal or fitting without tools.
  • All models are also supplied with four mounting feet to facilitate any ceiling, wall or floor mounting installation.

  Motor   Impeller

  • All models incorporate a single phase, 230V 50Hz, direct-drive low pressure forward curved centrifugal fan (with scroll) available in 2 or 4 pole speed.
  • The motors are of “enclosed” type and are fully speed controllable using voltage regulation.

  Dimensions

 
Model CAB A B C E F
125 273 388 395 125 125 162
160 273 388 395 160 143 162
200 328 430 365 200 216 210
250 383 525 450 250 263 237
315 443 600 505 315 301 264
400 513 660 600 400 331 292

  Technical Data

  Nom   Motor Max. abs Max. air Sound pressure level  
  Impeller   power  current volume dB(A) @ 1.5m      
Model CAB Size r.p.m. abs. W 230V m3/hr Discharge Inlet Radiated Kg
125 140/059 1600 48 0.22 240 47 3 30 16
160 140/059 2350 100 0.43 390 55 41 36 18
200 133/126 2000 180 0.80 695 58 45 34 22
250 180/184 1250 200 0.90 1250 60 44 38 25
250N 146/180 2200 350 1.5 1140 62 45 39 27
315 180/240 1400 500 3.20 2100 65 52 40 33
400 240/240 1400 1100 4.80 3500 69 55 43 35

  Performance

Q = Air volume in m3/hr and m3/s
Pe = Static pressure in mmWG and Pa
Dry air at 20ºC and 760mmHG
Air flow data in accordance with the following standards:  UNE 100-212-89, Part 1 AMCA 210-85 and ASHRAE 51-1985
 
 

  Sound Data

Model CAB   63 125 250 500 1000 2000 4000 8000
125 Discharge 34.5 46.0 43.5 49.5 59.0 54.5 50.0 44.0
Inlet 40.5 45.5 36.0 35.5 36.5 35.5 32.0 29.0
Radiated 40.5 41.0 24.5 27.5 25.5 25.0 21.5 20.0
160 Discharge 38.0 55.5 55.0 60.5 65.5 65.0 60.0 56.5
Inlet 42.5 53.5 44.5 43.0 40.5 44.0 43.5 40.0
Radiated 39.0 50.0 37.0 35.5 33.0 31.5 30.5 31.5
200 Discharge 40.0 56.0 56.5 61.5 67.5 67.5 63.0 59.5
Inlet 46.0 56.0 51.0 49.5 50.0 50.5 46.0 40.0
Radiated 33.0 50.0 41.5 37.0 39.5 38.0 31.5 28.5
250 Discharge 49.5 56.5 58.5 65.0 70.5 68.0 64.5 59.5
Inlet 48.5 53.5 51.5 50.0 49.5 48.5 43.5 39.5
Radiated 42.5 48.0 42.0 39.5 40.5 7.0 33.0 30.0
250N Discharge 48.0 57.0 58.5 65.0 70.5 72.0 68.0 64.0
Inlet 50.0 54.0 51.0 49.5 47.5 52.0 48.50 42.0
Radiated 40.0 46.5 43.0 42.0 44.0 45.5 40.5 33.0
315 Discharge 52.5 61.5 64.0 69.0 74.0 74.5 71.5 68.0
Inlet 55.0 56.5 59.5 54.5 58.5 59.5 54.0 47.0
Radiated 43.0 48.0 48.5 42.0 44.5 44.5 38.5 35.5
400 Discharge 57.5 61.5 67.0 73.5 79.5 77.5 76.0 67.5
  Inlet 58.5 61.0 60.0 57.0 63.5 63.5 59.0 48.0
  Radiated 39.5 50.5 51.0 49.5 51.0 46.5 40.0 33.5

  Autocad

   
CAB 125 CAB 160 CAB 200 CAB 250
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CAB 315 CAB 400  

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TDE

The Multiflow TDE 500 to 710 range consist of fully cased, cylindrical models with circular mounting flanges at both ends and a wired terminal box.

RVF

The Mini Centrifugal Roof Fan series are the new type roof extract units available in 2 sizes and suitable for vertical and horizontal installation. The low noise external motor and high efficient backward bladed impeller meets the requirement of efficient ventilation in residential, commercial and light industrial applications.

Future 150

The Decor Series can be wall or ceiling mounted and is designed to exhaust stale and moist air from bathrooms, toilets, laundries etc. They are also suitable for ventilating all types of small or closed areas.

TD Silent

The Silent Series is a low profile mixed-flow in-line fan that produces low noise when in operation. It does this through a specifically designed perforated internal skin that directs sound waves produced inside the fan to a layer of sound absorbent material.

NEW!! TD-EVO

The low-profile TD-EVO 250 and 315 in-line mixed-flow fans for circular ducts have a unique design where the support bracket allows the motor and impeller assembly to be fitted or removed without dismantling the adjacent ducting.

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