Yaskawa Servo Motor SGMGV-30ADA6E

11/05/2022

What is a Thermostatic Expansion Valve?

The thermostatic expansion valve (TXV or TEV), also called the thermal expansion valve, controls the openness degree through the control of the superheat of the gaseous refrigerant at the outlet of the evaporator.

07/07/2020

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

08/11/2020

Which three points should refrigerating machine manufacturers pay attention to when doing air tightness test

After the assembly of each refrigeration unit is completed, a series of tests are required to ensure the safe and stable operation of the unit, and there is an air tightness test. So, what should the refrigerator manufacturer pay attention to when doing the air tightness test?

06/26/2020

What is the refrigerator compressor used for

　Refrigerators use evaporative cooling or vaporization to absorb heat to achieve the purpose of refrigeration. The throat of the refrigerator is filled with a refrigerant known commercially as Freon, commonly known as refrigerant. A commonly used one is difluorodichloromethane, which is a colorless, odorless and non-toxic gas with a boiling point of 29°C. Freon is pressurized by the compressor when it is in a gas state.

07/18/2020

Calculation formula and calculation guide for industrial chillers

Low-temperature chiller refrigeration system operating conditions and adjustments Nowadays, chillers are widely used in the refrigeration industry, and the refrigeration working fluid is usually R22 (also R404a) and so on. In order to facilitate operation and maintenance and reduce the installation location, the refrigeration compressor

02/23/2022

How to Extend the Service Life of a Compressed Air Tank

Gas storage tanks, a kind of important special equipment, form a storage system for compressed air to reduce pressure fluctuations.

08/21/2020

Why the air-conditioning supplyreturn water temperature is 7℃-12℃

Reason analysis of 7 degree water supply: 　　 1. Starting from the refrigeration unit, the refrigerant evaporates in the evaporator and absorbs heat to cool the secondary side water. If the evaporation temperature is too low, it will cause frost on the surface of the evaporator and affect the heat transfer efficiency.

09/11/2020

Hanbell screw compressor oil replacement operation specification

Maintenance and operation instructions for the refrigerating oil of the screw refrigerant compressor of Hanbell 1. The role of lubricating oil:

09/05/2020

Who has the final say on equipment shutdown for maintenance

In enterprises, the equipment should be subject to preventive maintenance. According to the set cycle, the equipment should be shut down for repair. Usually production scheduling has the final say.

05/27/2025

How to Test Your Radiator Fan: A Step-by-Step Guide

A properly functioning radiator fan is crucial for maintaining the optimal temperature of your vehicle's engine.