VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm, execution 1

Centrifugal medium pressure fan of the VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm series (VR-287-46.1), made of aluminum alloys for explosive environments.

The fan VC 14-46 VZ (VZI) #2,5 (VR-287-46.1) is designed for ventilation or air conditioning systems of explosive gas-vapor-air mixtures of the 1st and 2nd categories of groups T1, T2, T3 according to the "Electrical Installation Rules" (EIR) classification, which do not cause accelerated corrosion of the materials of the flow part of the fans (air aggressiveness up to 80C), do not contain fibrous materials, sticky substances, dust and other solid impurities not more than 100 mg/m3 under moderate (U) climate (placement category 3) and tropical (T) climate (placement category 2).

Fans of the VC 14-46 VZ series (VR-287-46.1) are not used for the transfer of gas-vapor-air mixtures:

A) containing explosives, additional oxygen, explosive dust;

B) from technological installations in which explosive substances are heated above their self-ignition temperature or are under excess pressure. Fans with increased spark protection are used for servicing explosive premises of classes V-1a and B-1b according to the "Electrical Installation Rules" (EIR) classification, subject to normal operating conditions.

This model is an analogue of medium pressure centrifugal fans VR-287-46.1, VR 320-46, VR-300-46, VR 300-45, VR 289-46, VR 15-45.

The centrifugal fan VC 14-46 VZ (VZI) #2,5 (VR-287-46.1) consists of the following units, which can be purchased separately:

• fan VC 14-46 VZ (VZI) #2,5 (VR-287-46.1) without electric motor
• impeller of the fan VC 14-46 VZ (VZI) #2,5 (VR-287-46.1)
• fan casing (housing) VC 14-46 VZ (VZI) #2,5 (VR-287-46.1)
• Electric motor 4VR 112 M2

General information about centrifugal fans VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm (VR-287-46.1):

• Medium pressure
• Single-sided suction
• Spiral rotary casing
• Forward curved blades
• Number of blades - 32 pcs.
• Rotation direction - right and left
• Material - aluminum alloys.

Purpose of centrifugal fans VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm (VR-287-46.1):

The centrifugal fan VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm is intended for ventilation or air conditioning systems of explosive gas-vapor-air mixtures of the 1st and 2nd categories of groups T1, T2, T3 according to the "Electrical Installation Rules" (EIR) classification, which do not cause accelerated corrosion of the materials of the flow part of the fans.

Centrifugal fans VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm (VR-287-46.1) are used:

• in air conditioning systems
• in ventilation systems
• in air heating systems
• for other sanitary and industrial purposes

The centrifugal fan VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm (VR-287-46.1) operates under moderate climate conditions, at an ambient temperature from -40C to +40C. The temperature of the transferred medium must not exceed 80C.

Operating principle of the centrifugal fan VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm (VR-287-46.1):

Air, receiving energy from the impeller blades, enters the fan under the action of centrifugal force at an angle of 90 degrees and is directed 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 the centrifugal fan VC 14-46 VZ (VZI) aluminum #2.5 w/motor 4VR 112 M2 7.5 kW 3000 rpm (VR-287-46.1):

• spiral casing,
• impeller,
• frame,
• collector,
• Electric motor 4VR 112 M2

The impeller consists of a front and rear disk, 32 sheet blades, and a hub. The fan frame is welded. The base has a hole for installation on vibration isolators or foundation. The electric motor and the casing are mounted on the frame. The collector of a conical shape for supplying air to the impeller is fixed on the inlet pipe. The gap between the collector and the front disk of the impeller is adjusted by axial movement of the collector in the inlet pipe.

Position of the right (PR) and left (LIV) rotation centrifugal fan casings, view from the suction port: