BKD Bearing 51212

08/02/2022

Selection and Use of Hydraulic Motor

Hydraulic motor is a conversion element that converts the pressure energy of liquid into rotary motion machinery.

01/06/2021

Precautions when using the fresh air system

Precautions when using the fresh air system The fresh air system introduces outdoor air through the fan, and then deeply purifies the pollutants in the outdoor air by the fuselage filter and sends it to the room. After the clean air enters the room, th器2䀀
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랖僧҆識�僬㣢ᐲ臆S㥲ᐲᬄğ識理

06/14/2020

The common oil shortage failures of scroll refrigeration compressors are here

The compressor has been short of oil for a long time-the mechanism and the friction pairs are overheated, resulting in bearing sintering and shaft holding. The compressor is short of oil for a short time-the mechanism and the friction pairs are abnorma器2䀀
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08/18/2020

How to choose central air-conditioning insulation pipe material

In the general trend of building energy efficiency and green buildings, the domestic central air-conditioning industry is facing huge opportunities and challenges.

07/05/2020

Hitachi 6HP Inverter Compressor-Compressor

Hitachi 6HP Inverter Compressor-Compressor Why is frost formed between the electronic expansion valve and the compressor? A customer asked: The compressor is suddenly not cooling, and the electronic expansion valve is frosted to the compressor. Is there any relationship between the two before?

08/19/2020

What kind of preheating work can avoid the failure of screw chiller

The following is a small knowledge point to ensure the normal, safe and stable operation of the screw chiller. If you want to be a qualified chiller operator, you must continue to learn and absorb a more comprehensive working principle of the chiller and its components, and the chiller

06/14/2020

York screw RXB RXF compressor professional maintenance

History of screw compressors: Screw compressors applied for patents in Germany in 1878. In 1935, a screw compressor with 4 male threads and 5 female threads applied for a patent, which marked the birth of a modern screw compressor. The company that obtain器2䀀
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랖僧Ԙ識�僬㣢ᐲ臆S㥲ᐲᬄğ識理艏S杴 識杴 㥲ᐲ

06/27/2025

VFD Basics - How VFD Controls the Motor Running?

When the main circuit of the VFD is connected with the power line, in order to control the motor, it is necessary to connect the surrounding control circuit to the relevant terminals

07/23/2020

The secret of refrigeration compressor lubrication

The refrigeration process can be traced back to the middle of the 18th century, when the experiment was about the production of ice. This technology was perfected in the 18th century, and modern refrigeration was born. This can be used to cool or freeze liquids and foods so that they can be kept longer.

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth