VC 4-76 #20 Zh w/motor AIR 280 S6 75 kW 1000 rpm, execution 5

Low-pressure centrifugal fan series VC 4-76 #20 ZH (heat-resistant) with electric motor Electric motor AIR 280 S6 75.0 Power kW 1000 Vol./Min for general industrial use, made according to the design scheme No. 5 with a V-belt drive, manufactured from carbon steel.

This fan is designed for ventilation or air conditioning systems and other gas mixtures with a temperature of up to 200°C, which do not contain fibrous materials, sticky substances, dust, or other solid impurities exceeding 100 mg/m³, in moderate (U) climate conditions (placement category 3) and tropical (T) climate conditions (placement category 2), in accordance with DSTU 15150.

The centrifugal fan VC 4-76 #20 ZH (heat-resistant) consists of the following units, which can be purchased separately:

Fan VC 4-76 #20 ZH without electric motor. Fan impeller VC 4-76 #20 ZH. Fan casing (housing) VC 4-76 #20 ZH. Electric motor Electric motor AIR 280 S6 75.0 Power kW 1000 Vol./Min for fan VC 4-76 #20 ZH.

General information about centrifugal fans VC 4-76 #20 Zh w/motor AIR 280 S6 75 kW 1000 rpm H (heat-resistant):

Low-pressure. Single-sided suction. Backward-curved blades. Number of blades: 12. Rotation direction: right and left. Design scheme: No. 5 (V-belt drive design) – using V-belts, drive and driven pulleys. Fans are manufactured according to TU U 28.2-24881057-003:2023.

Purpose of centrifugal fans VC 4-76 #20 Zh w/motor AIR 280 S6 75 kW 1000 rpm H (heat-resistant):

The centrifugal fan VC 4-76 #20 Zh w/motor AIR 280 S6 75 kW 1000 rpm H (heat-resistant) is designed for moving air and other gas mixtures whose aggressiveness towards carbon steel is not higher than that of air, and which do not contain sticky substances, fibrous materials, as well as dust and other solid impurities in amounts not exceeding 100 mg/m³.

Centrifugal fans VC 4-76 #20 Zh w/motor AIR 280 S6 75 kW 1000 rpm H are used:

In air conditioning systems. In ventilation systems. In air heating systems. For transporting drying agents (heat carriers) in technological lines for grain drying with A1-DS50, A1-UZM grain dryers. For other sanitary and industrial purposes.

The centrifugal fan VC 4-76 #20 Zh w/motor AIR 280 S6 75 kW 1000 rpm (heat-resistant) operates in moderate climate conditions at ambient temperatures from -40°C to +40°C. The temperature of the transported medium should not exceed 200 °C.

Operating principle of the centrifugal fan VC 4-76 #20 Zh w/motor AIR 280 S6 75 kW 1000 rpm H:

Air, by transferring the energy of the impeller blades, enters the fan under the action of centrifugal force at a 90-degree angle and moves radially into the spiral casing; in the casing, moving along the spiral-shaped housing, under pressure, it is directed through the fan outlet.

Completeness of centrifugal fan VC 4-76 #20 Zh w/motor AIR 280 S6 75 kW 1000 rpm H:

The fan VC 4-76 #20 ZH (heat-resistant) with electric motor Electric motor AIR 280 S6 75.0 Power kW 1000 Vol./Min consists of the following main components: Spiral casing, Impeller, Base frame, Collector, Electric motor.

The impeller consists of a front and rear disk, 12 sheet blades, and a hub.

The fan base frame is welded. The base has a hole for installation on vibration isolators or a foundation. The electric motor and casing are mounted on the frame.

The conical collector for supplying air to the impeller is fixed on the inlet nozzle. The gap between the collector and the front disk of the impeller is adjusted by axial movement of the collector in the inlet nozzle.

Position of the housings of right (RH) and left (LH) rotating radial fans, view from the suction opening:

Right-hand rotation. Left-hand rotation.

Note on placement categories depending on climate conditions:

Category 1: For operation outdoors (exposure to the combination of climatic factors characteristic of these macroclimatic regions). Category 2: For operation under a canopy or in rooms (volumes) where temperature and humidity fluctuations do not significantly differ from outdoor conditions and there is relatively free access of outside air, for example, in tents, vans, trailers, metal rooms without thermal insulation, and also in the shell of a complete product of category 1 (no direct exposure to sunlight and precipitation).

Category 3: For operation in enclosed rooms (volumes) with natural ventilation without artificially controlled climate conditions, where temperature and humidity fluctuations and the effect of sand and dust are much less than outdoors, for example, in insulated metal, stone, concrete, wooden rooms (no influence of precipitation, direct sunlight; significant reduction of wind; significant reduction or absence of the effect of diffuse sunlight and moisture condensation).

Category 4: For operation in rooms (volumes) with artificially controlled climate conditions, for example, in closed heated or cooled and ventilated production areas, in rooms with conditioned or partially conditioned air, and others, including well-ventilated underground rooms (no direct sunlight, precipitation, wind, sand, and dust from outside air; no or significantly reduced effect of diffuse sunlight and moisture condensation).

Category 5: For operation in rooms (volumes) with high humidity (for example, in unheated and unventilated underground rooms, including mines, basements, in soil, in ship, vessel, and other rooms where prolonged presence of water or frequent moisture condensation on walls and ceilings is possible, including some holds, certain workshops of textile, hydrometallurgical industries, etc.).