Danfoss Compressor SH090A7ABB

06/14/2020

How does the central air conditioning screw compressor replace the freezing oil

Refrigerating oil, also known as lubricating oil, is mainly used for lubricating various moving parts in refrigeration compressors. It belongs to refrigeration consumable products. So, how does the central air conditioning screw compressor replace the freﰸ2䀀
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10/21/2025

List of Problems and Solutions for Screw Compressors

Screw compressor is another type of commonly used compressor. We’ve listed the following 11 problems and solutions for reference of anyone or business in need.

01/19/2022

Transmitter Common Faults & Diagnosis Methods

Transmitter faults mainly include complete fault, bias fault, shifting fault, and precision degradation fault. This is shown in figure 2.

05/10/2022

Common Faults and Solutions of Solenoid Valve?

Detection method: First, measure its make-break with a multimeter. If the resistance value approaches zero or infinity, it indicates that the coil is short circuited or open circuited.

04/10/2023

How to Quiet a Noisy Refrigerator (11 Ways)

Many families will encounter such a problem, that is, the refrigerator makes a "humming" harsh noise during use.

07/21/2020

11 common protection devices for refrigeration compressors

When the compressor is running, some abnormal conditions may occur, such as: exhaust pressure is too high, suction pressure is too low, oil pressure is insufficient, motor is overheated, excess liquid enters the cylinder, etc. In the event of an abnormal situation, the compressor will be damaged if there is no protective measure.

08/30/2020

Summarize 6 compressed air techniques to help companies quickly increase production

Throughout the course of operations, many companies will encounter situations where they need to quickly increase production.

09/04/2020

Internal leakage test of control valve in air separation plant

Commonly used control valves in air separation plants include normal temperature valves (mainly used outside the cold box), low temperature valves (mainly used in the cold box and low-temperature liquid pipelines outside the cold box)

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.

06/29/2020

Compression ratio of American Copeland compressor