Aercon Type Lf
Range
Modular air pressure of single & multi-bladed stabilisers for mounting in walls and doors.
50LF range - suitable for door mounting and 50 - 79mm thick walls.
80LF range - for walls of 80 - 99mm thick.
100LF range - for walls of 100mm and greater.
100LF - Packaged fire rated stabilisers.
100LF - Fire Duct Stabilisers.
LF - Combined Smoke/fire rated stabilisers.
100LF - Smoke/Fire Duct Stabilisers.
Stabilisers available with
anti-microbial coating
Principal features
Ideal for use in hospital operating theatres designed to HTM 03-01 or HTM 2025.
Screw fix front and rear flanges with made to measure rear slip-over flanges to suit your wall thicknesses.
Body materials - RAL 9016 white polyester coated carbon steel with other colours available on request.
Available with SteriTouch antimicrobial coating to reduce MRSA and E-Coli 157 bacteria.
Grades 304 or 316 stainless steel bodies and slip-over rear flanges.
Blades and internal parts - Grade 304 stainless steel as standard.
Blades pivot on sealed for life ball bearings.
Control of pressures from 5 - 50 Pa with an accuracy of +/- 1 Pa over the operating range.
Site adjustable. An on site commisioning service is available.
fiftylf Stabilisers
50LF Stabiliser dimensions
| Stabilser/blade length | No. of blades | A Overall Height | B Overall Width | Aperture width x height |
| 50LF 300 - 550/1 | 1 | 150 | Blade length + 68 | B/L + 40 x 100 |
| 50LF 300 - 550/2 | 2 | 238 | Blade length + 68 | B/L + 40 x 188 |
| 50LF 300 - 550/3 | 3 | 326 | Blade length + 68 | B/L + 40 x 276 |
| 50LF 300 - 550/4 | 4 | 414 | Blade length + 68 | B/L + 40 x 364 |
50LF Stabiliser selection procedure
| 50 LF flow factor table |
|
| Pressure Pa | Flow factor |
| 5 | 0.021 |
| 8 | 0.028 |
| 10 | 0.032 |
| 11 | 0.034 |
| 14 | 0.039 |
| 15 | 0.040 |
| 20 | 0.048 |
| 22 | 0.050 |
| 25 | 0.052 |
| 30 | 0.058 |
| 32 | 0.062 |
| 35 | 0.068 |
| 40 | N/A |
| 45 | N/A |
| 50 | N/A |
To select the appropriate 50LF stabiliser for your application:
Determine operating pressure in the range 5 - 35 Pa
Select the flow factor from the table opposite
Divide the flow in m3/s by the flow factor.
Multiply the answer by 320 to give the required total blade size in linear millimetres
Divide the total by 1, 2, 3 or 4 as appropriate to give individual blade size.
Standard blade lengths - 300, 320, 380, 460, 520 or 550mm.
Example - 0.14 m3/s @ 22 Pa. Flow factor = 0.050 (from table)
0.14/0.050 x 320 = 896 (theoretical length of blade in mm)
As this is greater than the largest single blade, divide by 2 and round up to the nearest standard blade from the blade lengths above, to give a 50LF 460/2 stabiliser (920mm of blade.)
80LF Stabiliser dimensions
| Stabilser/blade length | No. of blades | A Overall Height | B Overall Width | Aperture width x height |
| 80LF 300 - 610/1 | 1 | 178 | Blade length + 80 | B/L + 40 x 116 |
| 80LF 300 - 610/2 | 2 | 282 | Blade length + 80 | B/L + 40 x 220 |
| 80LF 300 - 610/3 | 3 | 386 | Blade length + 80 | B/L + 40 x 324 |
| 80LF 300 - 610/4 | 4 | 490 | Blade length + 80 | B/L + 40 x 428 |
80LF Stabiliser selection procedure
| 80 LF flow factor table |
|
| Pressure Pa | Flow factor |
| 5 | 0.041 |
| 8 | 0.046 |
| 10 | 0.051 |
| 11 | 0.053 |
| 14 | 0.062 |
| 15 | 0.065 |
| 20 | 0.076 |
| 22 | 0.079 |
| 25 | 0.083 |
| 30 | 0.090 |
| 32 | N/A |
| 35 | N/A |
| 40 | N/A |
| 45 | N/A |
| 50 | N/A |
To select the appropriate 50LF stabiliser for your application:
Determine operating pressure in the range 5 - 30 Pa
Select the flow factor from the table opposite
Divide the flow in m3/s by the flow factor.
Multiply the answer by 320 to give the required total blade size in linear millimetres
Divide the total by 1, 2, 3 or 4 as appropriate to give individual blade size.
Standard blade lengths - 300, 330, 380, 430, 520, 550 or 610mm.
Example - 0.22 m3/s @ 22 Pa. Flow factor = 0.079 (from table)
0.22/0.079 x 320 = 891 (theoretical length of blade in mm)
As this is greater than the largest single blade, divide by 2 and round up to the nearest standard blade from the blade lengths above, to give a 80LF 470/2 stabiliser (940mm of blade.)
100LF Stabiliser dimensions
| Stabilser/blade length | No. of blades | A Overall Height | B Overall Width | Aperture width x height |
| 100LF 250 - 750/1 | 1 | 218 | Blade length + 100 | B/L + 40 x 136 |
| 100LF 250 - 750/2 | 2 | 342 | Blade length + 100 | B/L + 40 x 260 |
| 100LF 250 - 750/3 | 3 | 466 | Blade length + 100 | B/L + 40 x 384 |
| 100LF 250 - 750/4 | 4 | 590 | Blade length + 100 | B/L + 40 x 508 |
| 100LF 250 - 750/5 | 5 | 714 | Blade length + 100 | B/L + 40 x 632 |
| 100LF 250 - 750/6 | 6 | 838 | Blade length + 100 | B/L + 40 x 756 |
100LF Stabiliser selection procedure
| 100 LF flow factor table |
|
| Pressure Pa | Flow factor |
| 5 | 0.042 |
| 8 | 0.053 |
| 10 | 0.059 |
| 11 | 0.062 |
| 14 | 0.071 |
| 15 | 0.073 |
| 20 | 0.084 |
| 22 | 0.089 |
| 25 | 0.094 |
| 30 | 0.103 |
| 32 | 0.106 |
| 35 | 0.112 |
| 40 | 0.121 |
| 45 | 0.131 |
| 50 | 0.140 |
To select the appropriate 100LF stabiliser for your application:
Determine operating pressure
Select the flow factor from the table opposite
Divide the flow in m3/s by the flow factor.
Multiply the answer by 320 to give the required total blade size in linear millimetres
Divide the total by 1, 2, 3 or 4 as appropriate to give individual blade size.
Standard blade lengths :- 200, 250, 260, 300, 330, 380, 430, 470, 520, 550, 610, 650, 680, 720, or 750mm.
Example - 0.22 m3/s @ 22 Pa. Flow factor (from table opposite) = 0.089
Formula : 0.22/0.089 x 320 = 791 (theoretical blade length in mm)
As this is greater than the largest single blade, divide by 2 and round up to the nearest standard size which will indicate a 100 LF430/2 stabiliser.
100LF Fire Duct Stabilisers
LF fire-ducts are “bolt on” units fitted to the outlets of 100LF pressure stabilisers to provide 2 hour fire resistance available with new stabilisers or for retro-fitting to existing ones. Actionair Type 101 Fire-Shield damper with bi-metallic cassette release. Fire damper operates at 72 degrees Centigrade.
| Stabilser range | Blade length | Aperture width | Aperture height |
| LF300 - 750/1 | 300 - 750 | Blade length + 100 | 218 |
| LF300 - 750/2 | 300 - 750 | Blade length + 100 | 342 |
| LF300 - 750/3 | 300 - 750 | Blade length + 100 | 466 |
| LF300 - 750/4 | 300 - 750 | Blade length + 100 | 590 |
| LF300 - 750/5 | 300 - 750 | Blade length + 100 | 714 |
| LF300 - 750/6 | 300 - 750 | Blade length + 100 | 838 |
100LF Smoke/Fire Duct Stabilisers
LF smoke/fire-ducts are “bolt on” units fitted to the outlets of 100LF pressure stabilisers to provide 2 hour fire resistance and full smoke protection Available for use with new stabilisers or for retro-fitting to existing units.
Actionair 501 Smoke-Shied damper with Belimo Mode 5 or 6 actuator andelectro- thermal release mechanism set @ 72 degrees Centigrade.
| Stabilser range | Blade length | Aperture width | Aperture height |
| LF300 - 750/1 | 300 - 750 | Blade length + 150 | 406 |
| LF300 - 750/2 | 300 - 750 | Blade length + 150 | 406 |
| LF300 - 750/3 | 300 - 750 | Blade length + 150 | 530 |
| LF300 - 750/4 | 300 - 750 | Blade length + 150 | 654 |
| LF300 - 750/5 | 300 - 750 | Blade length + 150 | 778 |
LF Fire-rated stabilisers
2 hour fire rated to BS 476.
High finish white polyester coated carbon steel case
Clip fix egg crate outlet grille for easy access to reset fire damper.
Loose angle frames for ease of mounting.
Fire damper operates at 72oC via bi-mettalic catch.
Optional 24V AC/DC or 240V electromagnetic actuation.
LF Fire-rated stabiliser dimensions.
| Stabilser range | Blade length | Aperture width | Aperture height |
| LF300 - 750/1 | 300 - 750 | Blade length + 116 | 234 |
| LF300 - 750/2 | 300 - 750 | Blade length + 116 | 358 |
| LF300 - 750/3 | 300 - 750 | Blade length + 116 | 482 |
| LF300 - 750/4 | 300 - 750 | Blade length + 116 | 606 |
| LF300 - 750/5 | 300 - 750 | Blade length + 116 | 730 |
LF Combined Smoke-Fire stabilisers
Now reduced in depth.
Whole assembly 2 hour fire rated to BS 476. High finish white polyester coated steel case. Clip fix egg crate outlet grille for easy access to smoke damper. Loose angle frames for ease of mounting. Silent closure Actionair Type 501 PTC smoke damper. Mode 5 (24V AC/DC) or Mode 6 (240V AC) Belimo motor actuation. Electro-thermal release mechanism set @ 72oC
| Stabilser range | Blade length | Aperture width | Aperture height |
| LF300 - 750/1 | 300 - 750 | Blade size + 245 | 463 |
| LF300 - 750/2 | 300 - 750 | Blade size + 245 | 463 |
| LF300 - 750/3 | 300 - 750 | Blade size + 245 | 588 |
| LF300 - 750/4 | 300 - 750 | Blade size + 245 | 711 |
| LF300 - 750/5 | 300 - 750 | Blade size + 245 | 835 |
| LF300 - 750/6 | 300 - 750 | Blade size + 245 | 959 |