Mitsubishi PLC A3MCA-4

04/30/2025

Gear Pumps: Working Principle, Types, Pros＆Cons and Applications

The <strong>hydraulic gear pump</strong> (<strong>gear oil pump</strong>) is a kind of positive displacement rotary pump.

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

08/20/2020

The installation and use of air-conditioning are particular about these skills

The air conditioner is our favorite when it's hot, and when it's hottest, the air conditioner often turns on the shaft and can't stop for a moment. Some friends even bought an air conditioner and installed it when the weather was too hot.

12/08/2022

The Lubrication of the Linear Guideway

For the sake of better performance, smaller wear, and longer service life of the linear guideway, proper lubrication is entailed. This article will discuss the functions, characteristics of lubricant and tips for lubrication.

08/20/2020

Introduction of solenoid valve and troubleshooting method

1. Symptoms-the solenoid valve does not open possible reason: 　　1 The coil has no voltage. 2 Incorrect voltage/frequency 3 Coil burned out 4 Pressure

08/19/2020

How to solve the drainage problem of window air conditioner

Although window air conditioners are not common in life, some consumers still use them. We should also have some understanding of window air conditioners. Compared with split air conditioners

08/28/2020

What are the principles of air compressor frequency conversion How to apply

As we all know, the application of frequency conversion air compressors on the market is becoming more and more extensive.

08/05/2020

Problems of evaporator defrosting and improvement methods

Although the evaporator is very useful, the evaporator defrosting electric heating tube burned out and the water collecting tray heating chamber burned out successively during use. So I will introduce the problems of the evaporator equipment and analyze the problems.

08/16/2020

Five major lubrication methods for compressors in industrial chillers

Everyone knows the principle of industrial chiller compressor. The compressor sucks the low-temperature and low-pressure refrigerant gas in the evaporator into the compressor, passes through the compressor,