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RL • Centrifugal fans

Single inlet centrifugal fan

Application

  • RL blowers are used for applications where dusty and polluted air has to be removed.
  • The fan is suitable for handling air up to 60°C
  • These fans are used in industry were great air volumes at high pressure are needed
  • A protection hood is required for uitside use

Composition

  • The casing is of a rigid construction in enamelled sheet steel, painted in epoxy RAL 5010 with a total thickness of 90µ - The strong base frame support the motor
  • The impeller with backward curved blades is dynamically and statically balanced grade G6.3 according to ISO 1940/1 and have efficiencies up to 85%
  • They have a non-overloading power characteristic which means that they can be use at free inlet duty
  • Totally closed squirrel-cage asynchronous motor
  • Protection IP55 – Insulation F
  • Supply: 230Vac 1ph 50Hz (Steinmetz type) - 230/400Vac 3ph 50Hz and 400/690Vac from 5.5kW motors

Accessories

  • Inlet flange, type COL
  • Outlet guard, type RLP
  • Square/round piece on outlet, type RLRC
  • 5-steps transformer speed controller 230V, type TSCTK-1
  • 5-steps transformer speed controller 3x400v, type TSCTK-4
  • Frequency converter 3x400V in / 3x400V out, type FIS(-C)-44-B

Options

  • ATEX II 2G T3 version
  • High temperature 450°C version
  • 2-speed motors
  • Belt driven version

Order example

RL 403/400V

RL403 = fan

400V = supply 3ph

Air performance data

 

Q [m³/h]

100Pa

200Pa

300Pa

400Pa

500Pa

600Pa

700Pa

800Pa

RL 310/4

230017501000--

-

--

RL 350/4

3800340026002000----

RL 400/4

55005000400034002750---

RL 450/4

800073006500580047004000--

RL 500/4

115001100010500100008500680056004500

RL 500/6

700054004000-----

RL 560/6

10500860086004800----

Attention

  • The RL fan has backward curved blades, the fan may be used with free air inlet

Selection curves

Technical data

 U [V]P [kW]I [A]SCTn [rpm]Lpa @ 1,5 m [dB(A)]
RL 310/41 x 2300.181.55TSCTK-1-30131057
RL 350/41 x 2300.373.25TSCTK-1-40136060
RL 400/41 x 2300.755.37TSCTK-1-70137064
RL 310/43 x 4000.180.56TSCTK-4-20 / FIS(-C)-44-B131057
RL 350/43 x 4000.371.06TSCTK-4-20 / FIS(-C)-44-B136060
RL 400/43 x 4000.751.86TSCTK-4-20 / FIS(-C)-44-B137064
RL 450/43 x 4001.102.55TSCTK-4-30 / FIS(-C)-44-B139067
RL 500/43 x 4002.204.70TSCTK-4-50 / FIS(-C)-44-B142071
RL 500/63 x 4000.551.60TSCTK-4-20 / FIS(-C)-44-B93059
RL 560/63 x 4000.752.05TSCTK-4-30 / FIS(-C)-44-B93062

  • SCT = Transformer speed controller
  • Lpa = Sound pressure level
  • Sound pressure Lpa measured according to UNI EN10531

Attention

  • In the orientation drawing, the motor is directed towards you. The desired orientation has to be specified upon order
  • A protection hood is required for outdoor mounting

Dimensions

 A [mm]B [mm]C [mm]D [mm]d1 [mm]E [mm]F [mm]G [mm]H2 [mm]K [mm]M [mm][kg]
RL 310/411745452722536665819611740024635042
RL 350/413050660025540574021613145027639565
RL 400/414755865528544881524514750021144575
RL 450/416363273532049791527516556024649594
RL 500/41837418323605511000303185600276545129
RL 500/61836318323605511000303185600211545116
RL 560/62057279404006291126332206670275560131
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