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MRA - Centrifugal fan

MRA

Centrifugal fan

Medium-pressure centrifugal fans with direct drive. Application: extraction systems for pre-filtered technological dust (eg cutting, grinding, polishing), pneumatic transport (eg PET production), blowing in drying systems, etc.
Can be painted in a color
other than standard
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APPLICATION

Fan designed for transporting non-aggressive and non-explosive gases without contamination. Typical applications:

  • pneumatic transport,
  • blowing in drying systems (eg graphic machines and plastics processing),
  • air blowing systems in combustion / heat treatment systems (eg melting furnaces).

CONSTRUCTION

  • medium-pressure centrifugal fan with direct drive,
  • riveted impeller from aluminium sheet with forward curved blades, dynamically balanced according to ISO 1940-1,
  • aluminium cast housing,
  • galvanized protective mesh at the inlet,
  • model 600 is equipped with a motor support,
  • fan painted grey RAL 7042,
  • maximum temperature of the transported medium is 80°C,
  • ambient temperature range from -20°C to + 40°C,
  • figure LG270.

MOTOR

  • asynchronous, single-phase, 230V, 50Hz (power from 0.75 to 1.5kW),
  • asynchronous, three-phase, 230 / 400V, 50Hz (power from 0.75 to 1.5kW),
  • asynchronous, three-phase, 400 / 690V, 50Hz (with power 4.0kW and 11.0kW),
  • efficiency class IE3 (power from 0.75 kW) or IE1 (0.75 kW, 230V),
  • degree of protection IP55,
  • insulation class F,
  • three-phase motors are adapted for frequency converter,
  • for voltage regulation (single phase motors 1.1kW).

SPECIAL EXECUTIONS

  • optional configuration LG/RD,
  • colour other than standard,
  • impeller made of galvanized steel sheet,
  • impeller made of stainless steel 1.4301,
  • impeller made of acid-proof steel 1.4404,
  • motor with voltage and frequency of power different than standard,
  • motor with other than standard degree of protection,
  • motor equipped with sensors or additional cooling,
  • sealing between the housing and the motor,
  • maximum temperature of the transported medium above 80°C,
  • ambient temperature range below -20°C and above +40°C.

Technical assistance

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m3/h
Pa

Work characteristics

MRA 200T

  • Pst max = 2750 Pa
  • Q max = 890 m3/h
  • P max = 750 W
  • n = 2890 rpm
  • I max = 1.7 A
  • U nom = 400 V
  • L wA = 80 dB(A)

Dimensions

Type A B C Ød1 Ød2 Ød3 ØD1 ØD2 ØD3
  mm mm mm mm mm mm mm mm mm
MRA 200T 451 515 360 165 139 100 165 139 106
MRA 200S 451 515 360 165 139 100 165 139 106
MRA 260T 451 515 365 165 139 100 200 182 138
MRA 260S 451 515 365 165 139 100 200 182 138
Type E F N1 N2 N3 N4 ØO ØO1
  mm mm mm mm mm mm mm mm
MRA 200T 210 290 46.5 156 215 240 9.5 6.6
MRA 200S 210 290 46.5 156 215 240 9.5 6.6
MRA 260T 210 290 46.5 156 215 240 9.5 6.6
MRA 260S 210 290 46.5 156 215 240 9.5 6.6
Type P1 P2 S T Z X X1 Y
  mm mm mm mm mm mm mm mm
MRA 200T 140 200 91 59 13 4 4 17
MRA 200S 140 200 91 59 13 4 4 17
MRA 260T 140 200 91 59 13 4 4 17
MRA 260S 140 200 91 59 13 4 4 17
Type A B C Ød1 Ød2 Ød3 ØD1 ØD2 ØD3
  mm mm mm mm mm mm mm mm mm
MRA 300T 523 577 421 191 165 125 200 182 140
MRA 300S 523 577 421 191 165 125 200 182 140
MRA 400T 630 705 532 234 200 160 234 200 162
Type E F N1 N2 N3 N4 N5 N6 ØO
  mm mm mm mm mm mm mm mm mm
MRA 300T 248 320 17.5 167.5 273.5 297 349.5 380 9.5
MRA 300S 248 320 17.5 167.5 273.5 297 349.5 380 9.5
MRA 400T 295 400 17.5 167.5 273.5 301.5 349.5 380 11.5
Type ØO1 P1 P2 S T Z X X1 Y
  mm mm mm mm mm mm mm mm mm
MRA 300T 6 180 230 98 72 13 4 8 13
MRA 300S 6 180 230 98 72 13 4 8 13
MRA 400T 6 180 230 125 88 13 8 8 13
Type A B C Ød1 Ød2 Ød3 ØD1 ØD2 ØD3
  mm mm mm mm mm mm mm mm mm
MRA 600T 850 920 678 270 240 180 280 260 187
Type E F N1 N2 N3 N4 ØO ØO1
  mm mm mm mm mm mm mm mm
MRA 600T 395 500 30 290 320 476 14 8
Type ØO2 P1 P2 S T X X1 X2
  mm mm mm mm mm mm mm mm
MRA 600T 13 390 430 150 120 4 8 4

Additional equipment


Venture Industries Group