OSCEN Piston Pump A4VSO250DR/30R-PPB13N00

06/14/2020

Working principle of inverter compressor

     The principle of inverter compressor inverter controller is to convert the alternating current in the power grid into a square wave pulse output. By adjusting the frequency of the square wave pulse (that is, adjusting the duty cycle), the speed of thﰸ2䀀
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08/16/2020

Reasons for the slow temperature drop of the refrigerator

The refrigeration performance of the refrigerator is a major factor in evaluating the quality of the refrigerator, so the temperature of the refrigerator is very important.

08/21/2020

Avoid stepping on pits when buying air conditioners, just refer to these points!

Recently, as the temperature rises, some cities in the north have entered a continuous high temperature mode. The continuous high temperature has caused many people to complain: "The air conditioner makes my life a second spring"! The same goes for it, such a hot weather, it is really hard to imagine without air conditioning.

08/05/2020

What are the common faults of the cut-off foot of the chiller and the adjustment cabinet

1. The valve body of the valve of the chiller is mostly steel castings. Casting blisters may be formed during the production process, causing the valve to leak refrigerant during use.

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.

06/29/2020

Compression ratio of American Copeland compressor

05/19/2025

The reason why the air conditioner is not cooling

Occasionally encounter the problem that the air conditioner does not cool in life. Don't worry at this time. The reason for the air conditioner not cooling is not very complicated. After understanding the reason for the air conditioner not cooling, you can solve the problem by taking the right medicine.

07/05/2020

Hitachi 6HP Inverter Compressor-Compressor

Hitachi 6HP Inverter Compressor-Compressor Why is frost formed between the electronic expansion valve and the compressor? A customer asked: The compressor is suddenly not cooling, and the electronic expansion valve is frosted to the compressor. Is there any relationship between the two before?

03/13/2021

Working mode of servo driver

The working modes of servo driver are: open loop mode, voltage mode, current mode (torque mode), IR compensation mode, Hall speed mode, encoder speed mode, tachometer mode, and analog position loop mode (ANP mode). (not all of the above modes exist in all models of drives)

09/05/2020

What are the characteristics of the filter material glass fiber

As the most widely used filter material in current high-efficiency and sub-high-efficiency filters, glass fiber has the following characteristics: