PIZZATO Switch FR 2001-W3M2

07/07/2025

Working principle of air compressor

An air compressor (air compressor) is a device used to compress gas. The structure of air compressor and water pump is similar. Most air compressors are reciprocating piston type, rotating blades or rotating screws. Centrifugal compressors are very large applications.

07/22/2020

The working principle of cooling and heating of air conditioning

In addition to the cooling function, the heating and cooling air conditioner also has the heating function. The biggest difference from a single-cooling air conditioner is that an electromagnetic four-way reversing valve is installed in the heating and cooling air conditioner.

06/25/2020

18 kinds of air-conditioning compressor competition! Whose compressor is the strongest refrigeration heart

Many people say that buying an air conditioner means buying a compressor. This is true. Simply put, the quality and life of the compressor determine the attitude of most people to buy. So what are the common compressor brands in the market? What compressors are used in these brand air conditioners?

05/14/2025

Troubleshooting a Refrigerator Compressor Running But Not Cooling: A Comprehensive Guide

The refrigerator is an essential appliance in every home, keeping our perishable food items fresh and safe for consumption. However, when the refrigerator compressor is running but the refrigerator is not cooling

08/01/2025

What is Refrigeration Cycle? The Refrigeration Cycle Explained

The refrigeration cycle is a cyclic process in which heat is transferred from a low-temperature object (or environment) to a high-temperature object (or environment) through a refrigerant, thereby cooling the object to a temperature lower than the environment and maintaining this low temperature.

06/24/2024

Top 11 Hydraulic Solenoid Valve Manufacturers Worldwide

The hydraulic solenoid valve is a widely used valve product and there are many brands/manufacturers of hydraulic solenoid valves on the market.

08/06/2020

Do you know the protection devices of these air-cooled chiller refrigeration compressors

1. Internal thermostat (installed inside the compressor)<br></br> In order to prevent the air-cooled chiller from running uninterruptedly for 24 hours, causing the compressor to operate under high load, the electromagnetic switch is not good,

08/21/2020

What are the advantages of using economizers for screw chillers

1. What is an economizer Economizers are often used in secondary air screw compressor refrigeration systems. Under working conditions with relatively low evaporation temperatures (below -25°C), the efficiency of ordinary single-stage screw compressors decreases,

08/15/2020

How high is the ceiling of the central air conditioner

The height of the central air-conditioning ceiling is a problem that many users worry about before installing the central air-conditioning. What are the factors related to the size of the central air-conditioning ceiling?

06/29/2020

Compression ratio of American Copeland compressor