NACHI Tool for Metal Cutting NACHI LIST62746.5mm

07/07/2020

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

08/11/2020

What will happen if the thermal expansion valve is configured too large

A 10P air-conditioning unit is equipped with a 12-ton (1 cooling ton=3.517KW) expansion valve. What will happen?<br></br> 　　 If you follow the DANFOSS selection software, this configuration will not be recommended (all think this type of selection is too large)<br></br>

08/02/2020

Principle and maintenance method of air conditioner pressure protector

In addition to window air-conditioning units, many air-conditioning systems use high-pressure and (or) low-pressure pressure protectors to protect the compressor in the event of a system failure. During the normal operation of the device

01/06/2021

Technical description of the core components of Mitsubishi Electric's central air conditioning

Technical description of the core components of Mitsubishi Electric's central air conditioning Mitsubishi Electric is a Japanese central air-conditioning brand. It is also a well-known brand in my country. Many consumers now buy and use it. So what adv器2䀀
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09/05/2022

Stepper Motor: Working Principle, Operating Modes & Application

Stepper motor, also known as <strong>step motor</strong>, <strong>stepping motor</strong>, converts received electric pulse signal into angular displacement or linear displacement.

02/10/2021

How to choose post-processing equipment for screw air compressors

During the operation of the screw air compressor, post-processing equipment is indispensable. Without post-processing equipment, it is not a complete screw air compressor system. The air compressor post-processing equipment includes: refrigeration dryer, air storage tank, filter For different screw air compressor models, the specifications of post-processing equipment are different.

08/12/2020

How should a window type explosion-proof air conditioner be installed

With the emergence of various types of explosion-proof air conditioners, the current window-type explosion-proof air conditioner market is getting smaller and smaller.

07/24/2020

Introduction to screw refrigeration compressors and precautions for use (technology sharing)

　　Screw refrigeration compressors and piston refrigeration compressors are the same in terms of gas compression, and both belong to positive displacement compressors, that is to say, they both compress gas by volume changes.

07/17/2020

Detailed product knowledge about Danfoss expansion valves

The thermal expansion valve is used to adjust the supply amount of liquid refrigerant in the evaporator. The supply amount is controlled by the superheat of the refrigerant. Therefore, this valve is particularly suitable for the supply of refrigerant liquid in the dry evaporator. Because the refrigerant superheat at the outlet of the dry evaporator is proportional to the load of the evaporator.

09/07/2020

Why choose a frequency conversion air compressor Count the protection of the inverter to the motor

In the process of production and use of air compressor motors, improper operation often leads to motor damage, which not only loses money, but also has a greater impact on the production schedule. Therefore, the correct use of the frequency converter has a positive effect on protecting the motor.