Powerline Ultra Series - In-Line Mixed Flow Fans

  • The Powerline Ultra Series of In-Line Mixed Flow Fans is designed for a wide range of duct mounted applications. 
  • They are most suitable in commercial and industrial applications where medium pressure is required. 
  • They are available in various speed options and 9 sizes, extending from 250 to 630mm diameter.

Typical Applications

  • Commercial and industrial supply or exhaust air applications such as shopping centres, office buildings, exhibition centres, hotels, health centres, schools and universities.


  • Robust, yet lightweight galvanised steel construction. 
  • Easy to fit TDF profile flange connections.  Standard direct-drive TEFC/TEAO motors.
  • Large choice of speeds available. 
  • To improve energy efficiency, motors can be speed-controlled. 
  • Can be mounted in any position. 
  • A range of matched ancillaries is also available.


  • Galvanised steel housings with 25mm TDF profile flange connections. 
  • Mixed-Flow impellers are made from high performance injection moulded composite plastic material.


  • Type - can be supplied with direct-driven external rotor or standard direct-drive TEFC motors.
  • Electricity supply - single or three-phase to suit a wide range of voltages and frequencies.
  • Bearings - sealed-for-life, ball.
  • Standard direct-drive TEFC motors can be single or and can be speed controlled using a variable
  • Air flow tests based on ISO5801
  • Noise tests based on BS848 : Part 2, 1985, or ISO13347-3

  Wiring Diagram

  • See pages J-6 for standard direct-drive TEFC/TEAO motors.

  Suggested Specification

  • The duct mounted fans shall be of the In-line Mixed-Flow Powerline Ultra Series as designed and manufactured by ELTA Fans (Pty) Ltd. and be of the model numbers shown on the schedule/drawings.
  • They shall include galvanised steel housings with TDF profile flange connections.
  • The Mixed-Flow impellers shall be made from high performance injected moulded composite plastic and driven by external rotor or standard direct-drive TEFC motors as nominated.
  • All performance data shall be for a complete assembled unit based on ISO5801 for air flow and BS848: Part 2, 1985 or ISO13347-3 for noise.


  Dimensions, mm App wt. App. Vol
Model PUD PUE A* B C Kg m3
250 430 325 341 27 0.03
280 450 350 366 29 0.05
310 500 400 416 32 0.11
350 550 450 466 36 0.15
400 550 500 516 48 0.18
450 600 550 566 55 0.23
500 700 650 666 67 0.36
560 800 700 716 101 0.51
630 850 800 816 138 0.64
Note: PUD 560 and 630 to have 35mm mezz flanges
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 another, it is possible actual fan speeds may differ and, therefore, the performance of the fan.  For Direct-driveperformance refer to Fantech Selection program.



Download PDF file    




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.


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.


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.


AMS started trading late in 1994 ...


Our Partners

Kruger products are licensed to ...

Our Partners

Company Profile

Air Movement Supplies ...



AMS marketing ...



ISO, EC etc ....



CTN, JHB & DBN news ...