Emerson Nidec Frequency Converter VFD MEV2000-40004-000

09/06/2020

Design steps of two-wire AC current transmitter

Known high-current current transformers convert different currents into 0~5A alternating current for on-site display. For long-distance transmission, the current must be converted into a standard DC current signal of 4-20mA before transmission.

09/04/2020

The advantages and disadvantages of centrifugal air compressors, screw air compressors, and piston air compressors

There are many types of air compressors. The following okmarts.com editor introduces the three most common air compressors, namely centrifugal air compressors, screw air compressors, and piston air compressors, and understands and analyzes their respective advantages and disadvantages.

08/19/2020

Causes and prevention of fire in FRP cooling tower

FRP polyurethane insulation pipes are only a small part of the application of FRP products. Nowadays, the consumption of FRP materials in China is very large each year. For example, the application of FRP cooling towers.

08/05/2020

Don't panic when the evaporator melts, look here!

Although the evaporator is very useful, the evaporator defrosting electric heating tube burned out and the water collecting tray heating chamber burned out successively during use. So I will introduce the problems of the evaporator equipment and analyze the problems.

06/29/2020

Analysis of the cause of excessive suction temperature of compressor

Analysis of the cause of excessive suction temperature of compressor The high suction temperature is mainly due to the increase of superheat of suction. Note that high suction temperature does not mean high suction pressure, because the suction is superheated steam. Under normal circumstances, the compressor cylinder head should be half cold and half hot. If the suction temperature is too high, the cylinder head will all heat up.

10/21/2021

List of Problems and Solutions for Piston Compressors

Piston compressors have an irreplaceable role in many areas but they are not easy to maintain. Therefore, it is very important for many companies to ensure smooth operation of this type of compressor.

07/18/2025

How to Choose Pulse, Analog and Communication Control Modes of Servo Motor

There are three control modes of servo motor: pulse, analog and communication. In different application scenarios, how should we choose the control mode of the servo motor

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

09/11/2020

Introduction to cleaning and maintenance of temperature control valve of okmarts.com air compressor

The composition of the temperature control valve of okmarts.com air compressor: The temperature control valve is composed of valve body, valve core, temperature sensing element, spring, etc.:

06/18/2020

What happened to the refrigerator compressor

What happened to the refrigerator compressor What happened to the refrigerator compressor 　　 The sound of "popping" made by the refrigerator, which is a kind of sound caused by the thermal expansion and contraction in the box, is normal. The sound of “D器2䀀
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