Danfoss Compressor SZ300A4PAD

05/29/2025

Solenoid Valve Symbols Explained

The solenoid valve is a component that controls the position of the valve core through an electromagnetic coil to open, close and change the flow direction of the medium (air, hydraulic oil, etc.) in the pipeline.

09/10/2020

Analysis on the New Trend of Chinese Inverter Compressor Technology Development

In 1978, Japanese air-conditioning companies put forward the concept of inverter air conditioners. Because inverter air conditioners have many advantages, they soon entered the families of developed countries.

07/07/2020

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

08/18/2020

Installation method of ventilation and air conditioning system

1.Installation of ventilation ducts<br></br> 1) The duct can be manufactured on site or prefabricated in the factory. The duct manufacturing methods are divided into bite connection, rivet connection, and welding.

07/19/2022

What is Diaphragm Pumps

A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber

07/29/2020

Why do the repairing air conditioner explode frequently, the repairer should pay attention to it!

Call 1: Please notify the installation and maintenance master of all outlets. Most of the current inverter air conditioners are throttling by electronic expansion valves.

06/09/2025

So what factors will affect the stable operation of the equipment

At present, many companies use air-cooled chillers, which have the characteristics of simple installation and operation, compact structure, and relatively easy maintenance. The most important thing is that it is a highly efficient and energy-saving refrigeration equipment.

08/14/2020

The correct way to open the refrigerated truck for summer maintenance

With the advent of summer, the maintenance of refrigerated trucks is becoming more and more important. In order to prevent the high temperature in summer from damaging the surface of the refrigerated truck,

06/22/2020

The difference between centrifugal compressor and reciprocating compressor

The difference between centrifugal compressor and reciprocating compressor Centrifugal compressor overview 　　 Centrifugal compressor is also called "vortex compressor", a type of compressor. The structure and operation principle are similar to the centrifugal blower, but it is always multi-stage, which can make the gas obtain higher pressure, larger processing capacity and higher efficiency.<img src="{{media url=&quot;The_difference_between_centrifugal_compressor_and_reciprocating_compressor.jpg&quot;}}" alt="" />

09/02/2024

What Are the Commonly Used Refrigerants in Refrigerators and Cold Storage?

There are more than 80 kinds of substances that can be used as refrigerants. Do you know which are the commonly used refrigerants for refrigerators / freezers and cold storage, and what are the selection principles?