Air Recirculator : VLS 50 (V-line)

Normally sold with front and back screen but
not louvers. Air recirculator fans used in many industries.

VLS 50VLS50 is the ideal air recirculation fan offering a cost effective solution to high airflow demand and high quality material. The propeller has a simple design including self-cleaning functions and high efficiency characteristics, all of which are features of the new V-line product segment.

The square fan housing and air conveyor (venturi) are made of a strong galvanised sheet-steel. The new design 3-blade propeller is statically and dynamically balanced. The propeller is available in stainless steel and galvanised steel.

To improve aerodynamic efficiency, the fan has been developed in Munters Euroemme's R&D lab. The test chamber has been built according to ANSI / AMCA 210-85 Figure 15 specifications. Construction details and air tightness have been verified by personnel of the BESS Lab at the Agricultural Engineering Department, University of Illinois - USA.

Propeller and Shutter

The propeller is attached to a large v-belt pulley in which is embedded a ball bearing, fully protected against water. The belt transmission ensures high efficiency, low energy consumption as well as low noise. The 3-blades propeller rotates at high speed and, in condition of low static pressure, transmits high energy to the air that ensures an efficient movement of the air stream, thereby providing for an excellent mixing of the air inside the building.

Equipment

  • Fan housing and venturi made of strong galvanised sheet-steel.
  • Each motor is individually tested for 100% quality control
  • Central hub and v-belt pulley are made from die-cast aluminium
  • Welded wire guards ensure good protection
  • Propeller is statically and dynamically balanced
  • 3-blades propeller operated at low static pressure ensures excellent performance
  • Every fan is individually checked for quality
  • Cost-effective solution
  • Energy efficient

 

Order Information

VLS50-X-X-X e.g., VL50-b-2-wp-wm

  • b : Code for electric motor according to above table.
  • 2 : Code for the type of propeller blades.
    1. Galvanised propeller blades.
    2. Stainless steel propeller blades.
  • wp-wm : Options codes
    • wp: Fan equipped with plastic CE protection for belt and pulleys (on mesh side, standard in Europe)
    • np: Fan delivered without plastic CE protection for belt and pulleys ( on mesh side, standard outside Europe)
    • wm: Fan delivered with pyramidal shape mesh for CE protection on shutter side.
    • nm: Fan delivered without pyramidal shape mesh for CE protection on shutter side (standard)

Motor Specifications

VLS 50
Code 		Nominal power Type
phases 		Speed Frequency
[hz] 		Voltage
[V] 		Current
[A]		 rpm
[w] [hp]
a 735 1.0 1 single 50 230 5 1,380
b 735 1.0 1 single 60 220 - 240 5.7 1,700
c 735 1.0 3 single 50 220 - 240 3.5 / 2 1,400
d 735 1.0 3 single 60 230 / 400 3.5 / 2 1,700
e 1,100 1.5 1 single 50 230 7.3 1,400
f 1,100 1.5 1 single 60 230 / 400 7.3 1,700
g 1,100 1.5 3 single 50 230 / 400 5.2 / 3 1,400
h 1,100 1.5 3 single 60 220 - 240 5.2 / 3 1,700

Technical Specifications

  05 hp 0.75 hp
Weight of fully equipped fan1 [kg] 65 67
Nominal propeller speed [rmp] 470 550
Airflow at 0 Pa1 [m3/h] [cfm] 33,900 [19,960] 39,800 [23,430]
Specific performance at 0 Pa1 [m3/wh] [cfm/w] 34.18     [20.1] 26.19     [15.4]
 
Propeller diameter [mm] [inch] 1,270 [50]
Number of blades   3
Max. operating temperature [°C] [°F] 50 [122]
IEC protective class of electric motor   IP55
Electric motor winding insulation grade   F
1 All values refer to 3 phases 50 Hz motor.
N.B Airflow data are measured at standard condition (20 °C, 1013 hPa).

VL 50 is developed and produced by Munters euroemme S.p.A., Italy.


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