COOPER Transformer POE13W2VERS-R

11/26/2021

Why DC 4~20mA is Chosen for Signal Transmission of Transmitters?

In industry, it is necessary to measure all kinds of electric and non electric parameters, such as current, power, temperature, pressure, speed and angle, etc.

06/18/2025

The meaning of pipe diameter De, DN, d, ф

The meaning of pipe diameter De, DN, d, ф<br></br> The respective ranges of De, DN, d, ф<br></br> 　　De-- PPR, PE pipe, polypropylene pipe outer diameter<br></br>

09/06/2020

Six manifestations of the development of oil-free air compressors in the next ten years

The next ten years will be a period of opportunity for the development of China’s manufacturing and air compressors. More domestic air compressor companies with strong innovation capabilities will produce oil-free,

08/26/2024

Common Heat Pump Failures: Cause Analysis

a. The room is too large or the doors and windows are open. Please close the doors and windows tightly.

08/09/2020

Do you know the selection criteria of electronic valves for cold storage systems

In the cold storage refrigeration system, the selection of components must strictly abide by the four basic principles of safety, reliability, applicability and economy.

06/14/2020

This is the reason for the overheating of refrigeration compressor exhaust~!

This is the reason for the overheating of refrigeration compressor exhaust~! The main reasons for the exhaust temperature overheating are as follows: high return air temperature, large motor heating capacity, high compression ratio, high condensation pre器2䀀
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08/02/2020

How to judge the presence of air in the air conditioner

In the refrigeration system, the non-condensable gases are mainly nitrogen, oxygen, hydrogen and water vapor in the air; because these working fluids do not condense with the refrigerant, they generally gather in the condenser or the liquid reservoir.

08/20/2020

Three design steps for selecting central air conditioning

Nowadays, more and more families choose home central air-conditioning, but often many families do not know how to make air-conditioning get good use effect. In fact, whether the air conditioner is effective or not

06/29/2020

Several causes of compressor burning

07/29/2020

R32 refrigerant training

Note: For products using R290 (such as dehumidifiers), if system failures are involved, automatic welding torch repairs are strictly prohibited. Please return the products to the factory according to the process.