What is the 4-68C centrifugal fan? On these 4-68 type fans, there are also four categories: ABCD, and what are the uses of these centrifugal fans? Under what conditions should it be used? Application: As an indoor ventilation system for general factories and large buildings, it can be used as both an input gas and an output gas. Types of gases transported: air and other non self igniting, harmless to the human body, and non corrosive to steel materials.

Impurities in gas: There should be no viscous substances in the gas, and the dust and hard particles contained should not exceed 150 milligrams per cubic meter. The temperature of the gas shall not exceed 80 degrees.

1. The centrifugal ventilation mechanism is a single suction fan, and the machine number is determined by each manufacturer based on the drawings. Each type of fan can be made into two types: right rotation or left rotation. When viewed from one end of the motor and the impeller rotates clockwise, it is called a right rotation fan, represented by "right". Rotating counterclockwise is called a left rotating fan, represented by "left". The outlet position of the fan is represented by the angle of the air outlet of the casing. Both "left" and "right" can be made into six angles: 0o, 45o, such as 135o, 180o, and 225o.

The A-type adopts a direct drive system with an electric motor, where the impeller and casing of the fan are directly fixed to the motor shaft and flange. A cantilever support device is used, which is further divided into two transmission modes: C-type (belt driven with the pulley outside the bearing) and D-type (connected with a coupling for transmission); Adopting B-type cantilever support device, belt drive, with the pulley in the middle of the bearing.

What are the components of the 4-68C fan? The No. 2.8-5 of the 4-68 fan is mainly composed of impeller, casing, air inlet and other parts matched with a direct connected motor. In addition to the above parts, there is also a transmission part for № 6.3-20.

Impeller: consisting of 12 backward sloping wing shaped blades welded between a conical wheel cover and a flat disc. All are made of steel plates and have undergone static and dynamic balance correction, with good air performance, high efficiency, and smooth operation.

Shell: The shell is a snail shaped body welded from ordinary steel plates. There are two different types of shells, numbered 2.8-12.5. The shell is made as a whole and cannot be disassembled. The shell of No. 16 and No. 20 is made into a three open type, with the upper half divided into two halves along the vertical centerline, in addition to being divided into two halves along the horizontal plane, and connected by bolts. Air inlet: Made into a convergent streamlined overall structure, fixed on the inlet side of the fan with bolts.

Transmission group: composed of main shaft, bearing box, rolling bearings, pulleys or couplings, etc. The main shaft of the centrifugal fan is made of high-quality steel. Four fan numbers, numbered 6.3-12.5, have an overall bearing box structure with temperature gauges and oil gauges installed on the bearings. Fans numbered 16 and 20 use two parallel bearing seats with temperature gauges installed on the bearing seats and lubricated with bearing grease. Related reading: What are the differences between centrifugal fans and axial fans

The 4-68 centrifugal fan can be used for indoor ventilation and air exchange in general factories and large buildings. It can be used for both gas input and output. The transported gas should be air at a temperature not exceeding 80 ℃ and other non self igniting gases that are harmless to the human body and non corrosive to steel materials. The gas must not contain viscous substances, and the amount of dust and hard particles contained should not exceed 150mg/m ³.

Kind reminder: What is the 4-68C centrifugal fan? What are the machine numbers, such as power, speed, flow rate, and total pressure. The 4-68 centrifugal fan is generally used for indoor ventilation and air exchange in factories and large buildings. Because of its reasonable structure, higher flow rate, lower noise, and easier installation. It also has four transmission modes: ABCD. If you have any further questions about the price, you can directly call the fan manufacturer hotline for consultation.