ROYAL Fan T765DG

06/14/2020

External balance thermal expansion valve

The difference between the external balance type thermal expansion valve and the internal balance type in structure and installation is that the space under the diaphragm of the external balance type valve is not in communication with the outlet of the va器2䀀
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08/20/2020

Taboos for installing air conditioning and refrigeration pipes

Air-conditioning refrigeration pipes are used as auxiliary equipment in air-conditioning installation, but their importance cannot be ignored. If all relevant components have been

07/11/2020

Working flow chart of screw air compressor

Working flow chart of screw air compressor In the first step, the air compressor sucks the surrounding air through the air filter to make it enter the compression host.

06/14/2020

Do you know the two methods of evacuating the refrigeration system?

Do you know the two methods of evacuating the refrigeration system? Vacuuming is an indispensable important process before charging refrigerant in the production or maintenance of refrigeration equipment. The process of removing the non-condensable gas a器2䀀
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09/16/2025

The Most Common Causes and Symptoms of Check Valve Failure

A failing check valve can be a disaster when you’re operating any liquid handling equipment. By understanding why valves fail and how to detect the early warning signs of valve failure

07/07/2020

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

07/23/2020

R410a and R22 refrigerant comparison application and installation specifications

1.Introduction to the properties of R410a refrigerant<br></br> 1. R410a is a HFCs refrigerant mixed with two working fluids of R32 and R125 at a mass fraction of 50% and 50%. It is a near-azeotropic mixture (pseudo-azeotrope), and its thermal performance is close to a single working fluid.

08/19/2020

How does the central air-conditioning project adjust and improve the wind power during operation

The central air-conditioning project is an overall system project, which contains many specifications such as technology, equipment, design, management, etc. A successful central

07/05/2020

Stationary Oil Free Air Compressor Market Analysis, Trends, Top Manufacturers, Share, Growth, Statistics, Opportunities & Forecast To 2026

Building & Construction Hold Over 20 % Share in Portable Air Compressor Market 2019 to 2027  June 25, 2020  No Comments  Compressor Control SystemIndustrial Air CompressorPortable Air CompressorPortable Inverter GeneratorReciprocating CompressorRotary Screw Compressor

09/23/2025

AC Making Noise When off: Where is the Noise from and What to Do?

If you’ve ever heard your AC making noise when off, it can be a bit unnerving. You may wonder what's causing the noise and what you can do to fix the problem.