NSK Bearing 5205 VV NR

09/11/2020

Discussion on the Key Technology of DC Inverter Air Conditioner Control

Inverter air conditioners have become a hot spot for the development of air-conditioning companies because of their energy-saving, comfortable, and high-energy-efficiency advantages and conform to the national policy of "energy saving and emission reduction".

07/20/2020

Performance index of electronic expansion valve:

Advantages of electronic expansion valve: The energy efficiency ratio is improved during high-frequency and low-frequency operation; the reliability of the compressor is improved, and the conditions of oil return, l

06/14/2020

Chinese air compressor market has the largest proportion of piston air compressor

Chinese air compressor market has the largest proportion of piston air compressors Chinese air compressors started in the late 1950s and were established and developed after the founding of New China (1949). After roughly digesting and absorbing the prodﰸ2䀀
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05/23/2025

How to select the thermal expansion valve？

1. The role and classification of expansion valves<br></br> Expansion valve is an important part of refrigeration system, generally installed between liquid storage cylinder and evaporator. The expansion valve causes the medium temperature and high pressure liquid refrigerant to become low temperature and low pressure wet vapor through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect.

01/17/2024

Industrial Fans: Advantages, Functions and Differences from Ordinary Fans

Industrial fans are widely used in factory workshops, logistics warehouses, basketball stadiums, stations, dairy farms, etc.

08/21/2020

Five common problems of refrigeration system

1. Treatment of insufficient refrigerant 1. Trouble phenomenon: The cooling effect of the whole machine is poor, the water outlet is only slightly cool, and the pressure on the high pressure side and the low pressure side are found to be low when checked with the manifold pressure gauge

07/07/2020

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

09/08/2020

What are the functions of the air compressor dewatering device

The compressed air produced by the compressor is not pure. This is because the air compressor itself contains lubricating oil. During the compression work, part of the lubricating oil must be mixed into the compressed air.

11/08/2024

R410a VS R134a: Comparison of Commonly Used Refrigerants in Data Centers

At present, data centers mainly use two types of refrigerants. One is R410a, which is mainly used in small or medium-sized data centers with air conditioning cooling capacity of 300-400 KW.

06/14/2020

Analysis of common failure causes of totally enclosed refrigeration compressor2

Analysis of common failure causes of totally enclosed refrigeration compressor 1. How to identify the three binding posts on the casing of the hermetic compressor? Running end (R), starting end (S), common end (C), the resistance between RS is greater器2䀀
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