Mitsubishi Circuit Breaker NV400-SW 3P 250A

08/16/2020

What are the precautions for installing the piston ring of ammonia refrigeration accessories

Piston ring is a small part of piston compressor in ammonia refrigeration system. It is used as a metal ring for sealing inside the piston. The piston ring includes a gas ring and an oil ring. It may seem small but it plays an important role.

09/06/2020

The harm of poor quality air filter element to screw air compressor

Inferior air compressor air filters are those that are relatively rough in workmanship and have the same filtering effect. You must know that air filters are the protective umbrella for the heart of the screw air compressor (screw host). If the picture is cheap, use inferior air compressors.

08/12/2020

Master the following skills to make brazing easier

Brazing is a type of brazing. When the melting point of the flux is high, it is called brazing, such as brazing; there are three types of brazing, and the other two are not explained! Brazing is a good method for high-strength, leak-free connection

08/03/2020

7 practical heat exchanger technical questions

Answer: In the most common partition type heat exchanger, there are mainly two heat transfer methods: conduction and convection.

08/20/2020

Introduction of solenoid valve and troubleshooting method

1. Symptoms-the solenoid valve does not open possible reason: 　　1 The coil has no voltage. 2 Incorrect voltage/frequency 3 Coil burned out 4 Pressure

07/02/2020

Five damage situations known to the compressor

Five damage situations known to the compressor Air conditioning has always been an indispensable "good companion" to accompany the hot summer! The reason the air conditioner can bring us cool is because of its internal compressor. If the air conditioner is used more and more frequently, then its internal compressor is prone to malfunction or even damage.

05/09/2025

Air Conditioner Compressor: How It Works, Functions, Troubleshooting＆Maintenance

The air conditioner mainly relies on the work of the air conditioner compressor (AC compressor) to achieve the cooling cycle.

09/23/2020

Installation foundation of compressed air pipeline

Basic knowledge is very important for sheet spray work, and the same is true during equipment installation. When installing compressed air pipelines, everyone must pay attention to the following precautions:

09/08/2020

Interpret the advantages and disadvantages of oil-free screw air compressors

Oil-free air compressors are very popular. There is no doubt that oil-free air compressors do not contain any oil at all. The ones that are really oil-free are all oil-free air compressors. It is a real oil-free air compressor, and the general oil-free air compressor only contains very, very little oil.

07/07/2020

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