CRYDOM Relay ELS4890

08/15/2020

Refrigeration methods and energy-saving methods of industrial refrigerators

Perhaps many friends are not very familiar with industrial refrigerators. In fact, this kind of equipment is aimed at refrigeration equipment in industrial production and can provide the most

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.

07/07/2020

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

08/18/2020

Common faults and maintenance methods of air-cooled chillers

Air-cooled chillers are installed outdoors without any obstruction, and are easily affected by outdoor light. So how to maintain good ventilation, good environment and space has a key impact on the cooling effect of the chiller.

12/20/2022

What is an Optical Fiber Amplifier?

The optical fiber amplifier, also known as the optical fiber ampler (OFA for short), refers to a new type of all-optical amplifier used in optical communication link to realize signal amplification.

08/20/2020

The general layout principle of the suction pipe in the cold storage

Recently, a small partner left a message asking about the general layout principles of the suction pipe in the cold storage. Today, the editor of okmarts.com will popularize this knowledge for everyone

01/27/2022

A Quick Look at the Submersible Pressure Transmitter

Submersible pressure transmitters use imported chip assembly, reflecting the superior technology. Their structure is compact and firm and is light for installation.

06/15/2025

Training manual for air compressor maintenance personnel

In recent years, it is difficult to find suitable air compressor equipment maintenance personnel, which has become the common feeling of more and more enterprises. From an objective point of view, the low salaries,

08/30/2020

Brief Discussion on Service Coefficient of Air Compressor Related Motor

The term motor service factor comes from the "MG1-2009 Motor and Generator Part" standard compiled and published by the National Electrical Manufacturers Association (NEMA), commonly known as the NEMA MG1 standard.

08/17/2022

Permanent Magnet DC Motor: Types, Application, Selection Principle (2)

The following content is the second half of the previous article, and continues introducing the basic principles of permanent magnet brushed dc motors