VC 4-75 #3.15 w/motor AIR 63 B4 0.37 kW 1500 rpm, execution 1

Series VC 4-75 #3,15 general-industrial centrifugal low-pressure fan (VR 88-72.1-5.5, VR 80-75-5) with Electric motor AIR 63 B4 0.37 Power kW 1500 Vol./Min electric motor, manufactured from carbon steel.

Intended Application:

This fan is designed for ventilation or air-conditioning systems and other gas mixtures whose aggressiveness to carbon steel does not exceed that of air at temperatures up to 80 °C, and which do not contain fibrous materials, sticky substances, dust, or other solid impurities in concentrations exceeding 100 mg/m³ under moderate (U) climate (placement category 3) and tropical (T) climate (placement category 2) conditions, in accordance with DSTU 15150.

Configuration and Modular Components:

The VC 4-75 #3,15 centrifugal fan (VR 88-72.1-5.5, VR 80-75-5) consists of the following modules, which can be purchased separately:

Fan VC 4-75 #3,15 without electric motor

Impeller wheel of fan VC 4-75 #3,15 (VR 80-75-5)

Fan housing (casing) VC 4-75 #3,15 (VR 88-72.1-5.5)

Electric motor Electric motor AIR 63 B4 0.37 Power kW 1500 Vol./Min for fan VC 4-75 #3,15

General Characteristics of Series VC 4-75 #3.15 w/motor AIR 63 B4 0.37 kW 1500 rpm Fans:

Low pressure

Single-sided suction

Backward-curved blades

Number of blades: 12

Direction of rotation: right and left

Fans are manufactured in accordance with TU U 28.2-24881057-003:2023

Application of Series VC 4-75 #3.15 w/motor AIR 63 B4 0.37 kW 1500 rpm Fans:

These fans are used in:

Air-conditioning systems

Ventilation systems

Air-heating systems

Other sanitary and industrial purposes

Operating Conditions:

Series VC 4-75 #3.15 w/motor AIR 63 B4 0.37 kW 1500 rpm centrifugal fans (VR 88-72.1-5.5, VR 80-75-5) operate under moderate climate conditions at ambient temperatures from −40 °C to +40 °C. The temperature of the conveyed medium must not exceed 80 °C.

Principle of Operation:

Air, by means of energy transfer from the impeller blades, enters the fan under centrifugal force at a 90° angle and is directed radially into the scroll-shaped casing; in the casing, the pressurized air is guided along the spiral path and discharged through the fan outlet.

Assembly of Series VC 4-75 #3.15 w/motor AIR 63 B4 0.37 kW 1500 rpm Fans:

The VC 4-75 #3,15 (VR 88-72.1-5.5, VR 80-75-5) fan with Electric motor AIR 63 B4 0.37 Power kW 1500 Vol./Min electric motor consists of the following main components:

Spiral casing

Impeller wheel (front and rear discs, 12 sheet blades, hub)

Support frame (stand)

Collector

Electric motor Electric motor AIR 63 B4 0.37 Power kW 1500 Vol./Min

The fan stand is welded. Its base includes a hole for mounting on vibration isolators or a foundation. The electric motor and casing are attached to the stand.

Position of Radial Fan Housings for Right (PR) and Left (LIV) Rotation (viewed from the suction side):

a) Right rotation

b) Left rotation

Note on Placement Categories Based on Climatic Conditions:

1st category: for outdoor operation (exposure to combined climatic factors characteristic of a given macroclimate region);

2nd category: for operation under a canopy or in volumes where temperature and humidity fluctuations do not significantly differ from those outdoors and where external air access is relatively free (e.g., tents, vehicle bodies, trailers, metal enclosures without insulation, and in enclosures of 1st category products, with no direct solar radiation or precipitation);

3rd category: for operation in enclosed volumes with natural ventilation without artificially regulated climatic conditions, where temperature and humidity fluctuations and exposure to dust and sand are significantly less than outdoors (e.g., insulated metal, stone, concrete, or wooden enclosures, with no precipitation or direct solar radiation, significant wind reduction, and reduced or absent diffused solar radiation and moisture condensation);

4th category: for operation in volumes with artificially regulated climatic conditions (e.g., closed heated or cooled and ventilated production areas, air-conditioned or partially conditioned environments, and well-ventilated underground spaces, with no direct solar radiation, precipitation, wind, sand or dust, and reduced or absent diffused solar radiation and moisture condensation);

5th category: for operation in volumes with elevated humidity (e.g., unheated and unventilated underground spaces, including mines, basements, and other environments where water may persist or frequent condensation on walls and ceilings occurs, such as holds, textile production areas, hydrometallurgical facilities, etc.).