PARKER Filter G03328

08/11/2020

How to check the air tightness of refrigeration equipment correctly

The refrigeration equipment is kept under a proper vacuum for a certain period of time. Whether the reading of the vacuum pressure gauge changes to reflect and observe whether the air penetrates into the system to check the sealing performance of the system.

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

09/29/2022

Positive Displacement Pump vs Centrifugal Pump

<strong>Positive displacement pump</strong> refers to the pump that uses the internal volume changes of the pump cylinder to transport liquid

08/08/2020

Daily maintenance method of precision air conditioner for computer room

With the development of science and technology, the precision air conditioners in the computer room are gradually upgraded, and the cost is getting higher and higher. Therefore, it is more necessary to increase maintenance efforts.

09/06/2020

Selection and verification of pressure vessel safety accessories

1 Pressure vessel and its safety accessories 　　 Pressure vessel is a closed device, not only carries a certain pressure, but usually contains gas or liquid inside, and metal and non-metal materials are common. There is a large pressure difference between the inside and outside

08/17/2020

How to choose chillers for small factories

At present, the chiller industry is continuously accelerating the pace of development. More and more different types of chillers have emerged, and many small chiller factories have been born.

06/14/2022

Working Principle and Advantages of HMI?

"HMI" stands for Human Machine Interface. These devices are also known as Man Machine Interface (MMI), Operator Interface Terminal (OIT), Local Operator Interface (LOI)

07/29/2020

Common sense of wire and cable calculation

What is the maximum current and power that a square wire can pass? How much wire is used for 100KW of electricity for project construction? Large wires cause waste, and small wires have more serious consequences. Here I share with you my estimation experience.

07/03/2024

Proportional Valve vs. Solenoid Valve vs. Servo Valve

The way the valve controls the fluid can be divided into two types: one is on/off control, either fully open or fully closed. Examples for this type of valve include ordinary direct-acting solenoid valves, solenoid-operated directional valves, electro-hydraulic directional valves, etc.

07/30/2020

Collection of various types of faults and troubleshooting methods for central air conditioning!

Collection of various types of faults and troubleshooting methods for central air conditioning