LFS

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Designations

1 L2 F3 S- 4 25 97/42- 6 0037 S8 AP9 HT
 

  1. Low-pressure centrifugal fan
  2. Impeller with forward curved blades
  3. Stainless steel housing
  4. Number of motor poles (rotation speed)
  5. Diameter of impeller
  6. Power 003 × 10 = 0,03 kW
  7. Type of motor: S - single-phase motor 230V
    T - Three-phase motor 400V
  8. Stainless steel impeller
  9. Increased temperature resistance
The LFS fans are widely used in the installations that require precise metering of air and good resistance to various chemical agents. They are commonly used in ventilation systems of chemical storage cabinets or chemical laboratories.
 

Application

The LFS fans are widely used in the installations that require precise metering of air and good resistance to various chemical agents. They are commonly used in ventilation systems of chemical storage cabinets or chemical laboratories.

They are also used in laboratory hoods, and for plastic processing and shrink wrapping.

Construction

A radial, low-pressure, directly driven fan. The welded rotor, provided with forward-tilted blades is made of acid-resistant steel sheet.  The rotor and the motor are dynamically balanced according to ISO IS01940 standard.

Housing made of stainless steel sheet is connected to the electric motor by a double temperature barrier consisting of a motor jointing sleeve and a disk of a high heat dispersing capability.  The fan is designed for transporting air at temperatures of up to 150°C (the rotor made of galvanised steel sheet, version of the fan: G HT) or up to 200°C (the rotor made of acid-resistant steel sheet, version of the fan: AP HT). 

LFS fans are manufactured in the LG90 configuration as standard. On request, the equipment can be supplied in any RD configuration.

Electric motor

The fans are provided with asynchronous, single-phase motors with capacitors 220-240V, 50Hz or three-phase 220-240/380-420V, with an external rotor and ball beraings, according to the standards IEC 72 and IEC 34-1; degree of protection IP 55 and winding insulation class F.

Motors driven by another voltage or frequency, and/or with an increased level of protection can be supplied on request.
Name Nominal
voltage [V]
Speed
[r.p.m.]
P max
[W]
I max
[A]
Q max
[m3/h]
P
static [Pa]
Weight
[kg]
Temp.
min.
[oC]
Temp.
max.
[oC]
LFS-2-97/42-003S 230 2850 30 0.5 148 165 4.1 -20 200
LFS-2-120/52-008S 230 2760 80 0.75 425 280 5.2 -20 200
LFS-2-133/62-025S 230 2800 250 1.7 660 360 9.8 -20 200
LFS-2-146/62-037S 230 2800 370 2.4 770 475 9.8 -20 200
LFS-2-160/62-018S 230 2760 180 1.5 605 585 8 -20 200
LFS-2-180/62-055S 230 2780 550 3.6 930 665 10.5 -20 200
LFS-2-133/62-025T 400 2780 250 0.65 660 360 9.8 -20 200
LFS-2-146/62-037T 400 2820 370 1 770 475 10.7 -20 200
LFS-2-160/62-018T 400 2760 180 0.5 605 585 8 -20 200
LFS-2-180/62-055T 400 2790 550 1.35 930 665 9.8 -20 200
LFS-2-200/74-150T 400 2880 1500 3 2300 990 30 -20 200
LFS-4-200/74-075T 400 1430 750 2.1 1200 240 28 -20 200
LFS-2-250/116-550T 400 2890 5500 9.8 4380 1800 49 -20 200
LFS-4-250/116-075T 400 1430 750 2.1 2210 455 51 -20 200
LFS-2-280/94-550T 400 2890 5500 9.8 3800 1980 70 -20 200
LFS-4-280/94-110T 400 1425 1100 2.5 3100 580 50 -20 200
LFS-4-315/143-300T 400 1425 3000 2.5 5600 795 70 -20 200
LFS-6-315/143-150T 400 930 1500 4.2 3900 340 70 -20 200

Performance curves