C&U Bearing 6309

05/23/2025

How to select the thermal expansion valve？

1. The role and classification of expansion valves<br></br> Expansion valve is an important part of refrigeration system, generally installed between liquid storage cylinder and evaporator. The expansion valve causes the medium temperature and high pressure liquid refrigerant to become low temperature and low pressure wet vapor through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect.

05/17/2023

How to Add Oil to AC Compressor

When the all-in-one air conditioner leaves the factory, there is a sufficient amount of AC compressor oil (commonly known as refrigeration oil, refrigerant oil, AC lubricants, AC oil) inside the machine.

10/18/2021

Maintenance of Absolute Encoders

What are the precautions for maintenance of rotary encoders? Rotary encoders are used as speed and displacement feedback sensors, which are mainly applied in servo motors, asynchronous motors

08/21/2020

What to do in case of a trip Improper use of air conditioner can cause disaster

As soon as the air conditioner is turned on, the switch of this appliance immediately goes off. What is going on? Is there a problem with the wiring at home or the air conditioner?

06/14/2020

The selection of the central air conditioner depends not only on the brand, the internal compressor is also very important, several types of compressors commonly used in central air conditioning;

The selection of the central air conditioner depends not only on the brand, the internal compressor is also very important, several types of compressors commonly used in central air conditioning; 1. Classification of common compressors 1. Single rotor器2䀀
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06/23/2020

What is the solution of air conditioning not cooling

There are many reasons why the air conditioner is not cooling. For example, if the air conditioner refrigerant is insufficient, you can find a professional to add snow; secondly, it may be caused by the error of the air conditioner installation, such as the ventilation pipe is too long. It is recommended to shorten the length of the ventilation pipe; A lot of dust stains accumulate on the radiator and cause no cooling. It is recommended to clean the air conditioner.

07/05/2020

Hitachi heat pump compressor prices

Hitachi heat pump compressor prices Features of Hitachi Air Conditioning Compressor 12 for air energy heat pump hot water: 1. Optimize asymmetric vortex lines; 2. High pressure ratio;

06/29/2020

How the compressor works

07/30/2021

Where will Computer Numerical Control Machines Go?

At present, the development of Computer Numerical Control (CNC) machines with each passing day, characteristics of high-speed

09/14/2020

Maintenance and maintenance of screw air compressor

1. Maintenance and maintenance of intake air filter element. The air filter is a component that filters air dust and dirt, and the filtered clean air enters the compression chamber of the screw rotor for compression. Because the internal clearance of the screw machine only allows particles within 15u to filter out.