Table of contents:
Product description
Radial transport fans. Excellent for use in the wood, paper, textile and food industries. Also used in industrial process dust extraction systems and for pneumatic conveying. The open design impeller with forward curved blades generates higher pressures and prevents dust accumulation on the surface. Also proven in installations where wet dust is conveyed.
- Available in figures: Rd 0, 90, 270 and Lg 0, 90, 270
- Inlet diameters: 140 – 225mm
- Air flow temperatures: -20 to +80°C
- Motor operating temperatures: -20 to +50°C
- Installed motor powers: 0.55 – 11kW
- Motor speeds: 3000, 1500min-1
- Motors adapted to speed control by means of a frequency converter as standard
- Sophisticated solutions for easy attachment and transport of the fan to the workplace
- Casing protected against corrosion – powder painting
Optional executions:
- figures other than standard, (Rd 45, 135, 225, Lg 45, 135, 225)
- execution type: IM V1 – flanged inlet
- in thermal and acoustic insulation
- impellers with flows other than standard
- motors up to 45kW
- explosion-proof
- high temperature, air flow temperature max: +150°C
Construction
Housing
Motor
Rotor
Housing:
- Welded from structural steel sheet, with optimised spiral shape, in larger fans fitted with stiffening ribs
- Equipped with bolted or welded motor shelf
- Protected against corrosion by powder coating. Painted in colour RAL 5005 (signal blue)
Housing optional:
- Corrosion protection by hot-dip galvanising
- Material: stainless steel grade 1.4301
- Material: aluminium
- Inspection hatch
- Painted in another RAL colour
Motor:
- Asynchronous 3 phase
- Supply voltage: 3~ 230/400V; 400/690V
- Efficiency class: IE3
- Insulation class: F
- Degree of protection: IP 55
- Cast aluminium or cast iron motor housing
- Equipped with closed bearings, maintenance-free
Motor optional execution:
- Supply voltage: 440V, 460V, 500V, 1000V
- Supply frequency: 60Hz
- Efficiency class: IE4
- Insulation class: H
- Degree of protection: IP 56, IP66
- Winding temperature sensors
- Bearing temperature sensors
Rotor:
- Made of steel, welded, open construction, forward-curved blades resistant to abrasion
- High efficiency in the medium pressure range
- Dynamically balanced to class G-6.3 in accordance with ISO 1940-1
Technical data
Specification
| Nr kat. | Type fan | Motor power [kW] | Current at 1~230V [A] | Current at 3~400V [A] | Speed [min -1] | Maximum capacity [m3/h] | Maximum total pressure [Pa] | Sound level [dB(A)] * | Weight [kg] ** | |
|---|---|---|---|---|---|---|---|---|---|---|
| 6701 | WTR248/0,55-2/D | 0,55 | 3,45 | 1,42 | 2760 | 1350 | 1020 | 85 | 35 |
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| 6702 | WTR263/0,75-2/D | 0,75 | 4,54 | 1,75 | 2840 | 1700 | 1280 | 88 | 40 |
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| 6703 | WTR283/1,1-2/D | 1,10 | 6,45 | 2,42 | 2840 | 2400 | 1480 | 90 | 47 |
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| 6704 | WTR298/1,5-2/D | 1,50 | 8,62 | 3,2 | 2850 | 2700 | 1680 | 94 | 58 |
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| 6705 | WTR323/2,2-2/D | 2,20 | 12,5 | 4,54 | 2860 | 3400 | 1770 | 95 | 68 |
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| 6706 | WTR348/3,0-2/D | 3,00 | 16,6 | 5,88 | 2880 | 4300 | 1910 | 97 | 85 |
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| 6707 | WTR368/4,0-2/D | 4,00 | - | 7,54 | 2890 | 4800 | 2080 | 99 | 102 |
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| 6708 | WTR388/5,5-2/D | 5,50 | - | 10,2 | 2900 | 5400 | 2470 | 101 | 135 |
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| 6709 | WTR413/7,5-2/D | 7,50 | - | 13,8 | 2910 | 6000 | 2940 | 104 | 154 |
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| 6710 | WTR455/11,0-2/D | 11,00 | - | 19,9 | 2930 | 7500 | 3530 | 108 | 206 |
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Characteristics
3000 RPM
WTR248
WTR263
WTR283
WTR298
WTR323
WTR348
WTR368
WTR388
WTR413
WTR455
Dimensions
Dimensions
| Product no | Fan type | T - Rd, Lg 0 | T - Rd, Lg 90 | T - Rd, Lg 270 | M | ~L | a | b | ea | eb | ØDwl | ØDpwl |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6701 | WTR248/0,55-2/D | 476 | 590 | 486 | 475 | 381 | 160 | 115 | 196 | 149 | 140 | 182 |
| 6702 | WTR263/0,75-2/D | 496 | 610 | 507 | 495 | 422 | 200 | 130 | 236 | 166 | 160 | 200 |
| 6703 | WTR283/1,1-2/D | 535 | 661 | 547 | 538 | 422 | 200 | 130 | 236 | 166 | 160 | 200 |
| 6704 | WTR298/1,5-2/D | 558 | 687 | 569 | 557 | 496 | 200 | 160 | 236 | 196 | 180 | 219 |
| 6705 | WTR323/2,2-2/D | 604 | 747 | 604 | 614 | 496 | 200 | 160 | 236 | 196 | 180 | 219 |
| 6706 | WTR348/3,0-2/D | 671 | 826 | 685 | 661 | 580 | 225 | 180 | 260 | 216 | 200 | 241 |
| 6707 | WTR368/4,0-2/D | 671 | 826 | 685 | 661 | 598 | 225 | 180 | 260 | 216 | 200 | 241 |
| 6708 | WTR388/5,5-2/D | 724 | 896 | 740 | 736 | 685 | 250 | 200 | 286 | 236 | 225 265 | 265 |
| 6709 | WTR413/7,5-2/D | 724 | 896 | 740 | 736 | 692 | 250 | 200 | 286 | 236 | 225 | 265 |
| 6710 | WTR455/11,0-2/D | 872 | 1074 | 890 | 864 | 829 | 280 | 225 | 316 | 260 | 225 | 265 |
The height of the fan depends on its figure.
The heights in the table are given for selected figures.
Dimensions of other figures available on request.
