NTN Bearing 61840

10/28/2025

Causes, treatment and prevention of liquid shock in refrigeration compressor

Causes, treatment and prevention of liquid shock in refrigeration compressor Liquid shock refers to the situation where the refrigerant fails to absorb heat or evaporates sufficiently, and the refrigerant liquid or wet steam is sucked into the compressor器2䀀
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07/17/2020

Empty and replace the expansion valve after servicing the refrigeration system

Let's introduce the operation process when replacing the expansion valve in the refrigeration system. In the system, when the low pressure of the system is under pressure control, short-circuit the controller before venting the system to prevent the system from jumping during vacuum.

06/29/2020

Several causes of compressor burning

09/14/2022

FAQs on Hydraulic Motor

According to the rated speed, hydraulic motors are divided into: high-speed hydraulic motors (rated speed higher than 500r/min), including gear, vane and axial piston types

09/08/2020

Essential for air compressor companies safety monitoring implementation plan for special equipment

Special equipment refers to those equipment that is more dangerous and is prone to safety accidents if used or managed improperly. Special equipment is large in quantity and widely distributed, involving various aspects of production and life, and is an indispensable equipment facility that people have extensive contact with in daily work and life.

08/15/2020

What should I do if wall cracks appear after the cold storage is built

After the construction of the cold storage project, there may be many problems. For example, we have seen a lot of news recently. It is said that the wall cracks appeared after the construction of the cold storage

08/24/2020

Six steps to prevent ice blockage in refrigeration equipment maintenance

Ice blockage has always been a common failure of refrigeration equipment. In which part of the maintenance is it caused? The following are the correct operation methods for the 6 key links that may cause ice blocking in the maintenance of large refrigeration equipment:

08/17/2020

Analysis of common accidents in cold storage and their causes

In recent years, with the continuous development of the cold chain logistics industry, there are more and more users who need to build cold storage. Once anything develops too fast, all kinds of abuses will gradually surface.

08/02/2020

When air conditioners lack fluoride, five common leak detection methods will teach you who don’t understand!

When the air conditioner is lack of fluoride, the detection of leaks is the primary task of leakage repair. Today we introduce five common leak detection methods for you, namely fluorescent leak detection, soapy water leak detection

03/01/2023

The Structure and Basic Working Principle of Air Cylinder

Air cylinder is composed of cylinder barrel, end cap, piston, piston rod, and sealing ring.