IMI Norgren Solenoid Valve SXE9775-Z50-81/83W

08/02/2020

Talk to the manufacturer's engineer and tell you how important refrigeration oil is to refrigeration equipment!

Although the refrigeration oil is only a small material, if you accidentally use inferior products, you can even burn the machine. I believe that many colleagues have often encountered it.

08/07/2020

Common physical and chemical methods for removing scale in condensers in chillers

The water chiller is prone to scale formation in the condenser pipe after long-term use. If it is not treated in time, these scales will affect the heat exchange effect and cause the condensing temperature of the unit to increase

09/06/2020

What kind of bearing cannot continue to be used and needs to be replaced with a new bearing

To determine whether the bearing can be used again, it should be decided according to the bearing damage level, mechanical performance, importance, operating conditions, inspection cycle and other related factors.

12/05/2022

Materials for Linear Guideways

Linear guideways are widely used in transmission system and have many characteristics such as high hardness, high accuracy, etc. These are largely attributed to the advanced material they use.

12/23/2022

What is an Erbium Doped Fiber Amplifier?

The erbium optical fiber amplifier (EDFA) is an optical amplifier made of optical fiber doped with erbium.

09/02/2020

The power frequency air compressor costs electricity, is there any rescue

Recently, when I was communicating with friends in the industry, I heard two cases. I think it is instructive for air compressor manufacturers or distributors who are "taking the quality" road, and they are worthy of our thoughts and learning.

08/24/2020

The new standard of hygiene in the air-conditioning industry is here! Daikin Air Conditioning takes the lead in participating in the formulation

With the development of the new crown pneumonia epidemic, consumers are paying more and more attention to air-conditioning products with one or more functions such as fresh air, antibacterial, sterilization, purification, and disinfection.

03/01/2021

Performance comparison between servo motor and stepping motor

As an open-loop control system, stepping motor has essential connection with modern digital control technology. In the current domestic digital control system, stepping motor is widely used. With the emergence of all digital AC servo system, AC servo motor is more and more used in digital control system. In order to adapt to the development trend of digital control, stepping motor or full digital AC servo motor is mostly used as the executive motor in motion control system. Although they are similar in control mode (pulse train and direction signal), they are quite different in performance and application. This paper compares the performance of the two.

08/20/2025

What’s the Difference between Semi-Hermetic Compressors and Hermetic Compressors?

In the hermetic compressor, the motor and the compressor share the main shaft (reciprocating type)

07/07/2020

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