LBB

Designations

1 L2 B3 B- 4 4- 5 315/102- 6 0377 T
 

  1. Low-pressure centrifugal fan
  2. Type of rotor
    R - rotor with backward curved blades
  3. Housing tin
  4. Number of motor poles (rotation speed)
  5. Model
  6. Power
    037 - 37 x 10 = 370W
  7. Electric motor
    T Three-phase motor
LBB low-pressure centrifugal fans are designed for the transport of gases with a low dust level.
 


 


Application

LBB low-pressure centrifugal fans are designed for the transport of gases with a low dust level, maximum dusting 0.3 g / m3.

They are used in various mechanical ventilation systems, for air forcing in production processes, ventilation systems, in cooling and air conditioning equipment, dryers.

Construction

Low pressure centrifugal fans with direct drive. Housing welded from steel sheet, powder coated in blue RAL 5010.

The impellers with backward-curved blades, welded from aluminum sheet, dynamically balanced as per ISO 1940-1. As a standard, the fans are in designed in LG configuration.

Electric motor

Induction motors with external impeller are applied in LBB fans.

Motors designed for variable rotation speed control. Thermal overload protection in the motor's winding.

Advantages

  • compact design thanks to the use of motors with revolving stators
  • rotation speed control
  • can be installed in any position: fan outlet oriented downwards, upwards, sidewards
  • hinged door on which the drive is mounted, an opening handle and a junction box
  • easy and convenient cleaning of the fan and impeller interior
Name Pole Nominal
voltage [V]
Speed
[r.p.m.]
P max
[W]
I max
[A]
Q max
[m3/h]
P
static [Pa]
Temp.
min.
[oC]
Temp.
max.
[oC]
LBB-4-315S 230 1400 120 0.56 1300 310 -15 60
LBB-4-315T Y 400 1400 100 0.48 1300 310 -15 60
LBB-6-315S 230 965 37 0.18 800 120 -15 60
LBB-4-355S 230 1400 230 1.2 2300 410 -15 60
LBB-4-355T Y 400 1400 200 1.1 2300 410 -15 60
LBB-6-355S 230 875 70 0.33 1400 160 -15 60
LBB-4-400S 230 1415 370 1.64 3050 510 -15 70
LBB-4-400T D 400 1415 320 1 3050 510 -15 70
LBB-4-400T Y 400 1065 235 0.7 2300 290 -15 70
LBB-6-400S 230 950 150 0.7 2100 225 -15 70
LBB-6-400T D 400 950 120 0.4 2100 225 -15 70
LBB-6-400T Y 400 690 105 0.3 1500 120 -15 70
LBB-4-450S 230 1350 540 2.4 4000 715 -15 70
LBB-4-450T D 400 1215 650 1.2 3600 575 -15 50
LBB-4-450T Y 400 860 370 0.64 2500 290 -15 50
LBB-6-450S 230 850 260 1.2 2500 290 -15 70
LBB-6-450T D 400 875 265 0.65 2500 290 -15 50
LBB-6-450T Y 400 690 165 0.3 2000 190 -15 50
LBB-4-500S 230 1340 1050 4.7 6400 700 -15 55
LBB-4-500T D 400 1350 1100 1.91 6400 700 -15 70
LBB-4-500T Y 400 1055 770 1.25 5000 420 -15 70
LBB-6-500S 230 815 320 1.4 4000 280 -15 60
LBB-6-500T D 400 860 360 0.75 4000 280 -15 60
LBB-6-500T Y 400 660 225 0.4 3050 170 -15 60
LBB-4-560T D 400 1240 1700 3 8000 740 -15 50
LBB-4-560T Y 400 882 920 1.8 5500 350 -15 50
LBB-6-560S 230 860 585 2.7 5500 350 -15 55
LBB-6-560T D 400 860 500 1.1 5500 350 -15 70
LBB-6-560T Y 400 640 335 0.6 4000 200 -15 70
LBB-4-630T D 400 1300 3550 5.9 11000 880 -15 45
LBB-4-630T Y 400 1015 2200 3.6 4000 540 -15 45
LBB-6-630T D 400 875 960 1.9 7500 400 -15 70
LBB-6-630T Y 400 685 640 1.2 6000 240 -15 70
LBB-6-710T D 400 927 2200 5 13000 800 -15 60
LBB-6-710T Y 400 802 1700 2.9 11000 440 -15 60
LBB-8-710T D 400 630 910 2.2 9000 270 -15 50
LBB-8-710T Y 400 465 510 1 6500 150 -15 50

Performance curves