Parker Solenoid Valve 131X1131-492310C2

03/03/2021

Type selection calculation of servo motor

Confirmation of speed and encoder resolution. Conversion of load torque on motor shaft and calculation of acceleration and deceleration torque.

06/21/2020

Which is better, semiconductor refrigeration and compressor refrigeration

Which is better, semiconductor refrigeration and compressor refrigeration <img src="{{media url=&quot;o4YBAF3LcwuAC1ILAAEzxLDPcHA979.jpg&quot;}}" alt="" />Semiconductor refrigeration 　　Semiconductor refrigerator refers to a device that uses the thermo-electric effect of semiconductor to produce cooling capacity, also known as thermoelectric refrigerator. Connect two different metals with conductors, and connect direct current, then the temperature at one contact will decrease and the temperature at the other contact will increase.

06/14/2020

Basic knowledge of central air conditioning

Basic knowledge of central air conditioning 1. Basic knowledge of central air conditioning 1. What is refrigerant and what is its working principle? A working substance that transfers heat between the object to be cooled and the environmental mediu器2䀀
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07/16/2020

Judgment of the failure of piston compressor in starting

Piston compressor It is a type of compressor commonly used in industrial refrigeration. Most piston compressors use a semi-closed shape, which is simple and convenient to maintain and repair. It is widely used in large supermarkets, cold stores, laboratories, and various refrigeration equipment.

07/07/2020

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

09/03/2020

Where is the compressed air we have been talking about

We always mention the term compressed air. Do you know where compressed air is used? 　　 dry cleaning 　　 After the "washing" cycle of chemical solvent treatment, the clothes are "dried" in the cycle of dry and pure compressed air.

04/24/2023

How to Change Air Compressor Oil (5 Steps)

Air compressor oil is mainly used for the lubrication of the moving parts in the compressor cylinder and the exhaust valve, and plays the role of anti-rust, anti-corrosion, sealing, sound reduction and cooling.

06/14/2020

Details of the use of freezer that you don't know! ! Commercial refrigerators usually have very low temperatures. Therefore, many consumers who use refrigerators will develop the concept of keeping fresh at low temperatures. However, if they are not clean

How to add refrigerant in the freezer People who open restaurants in their own homes will notice that the freezer that they just bought from the mall is really a highlight in the store. It is immediately higher than ordinary small restaurants, so many smﰸ2䀀
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08/07/2020

Common physical and chemical methods for removing scale in condensers in chillers

The water chiller is prone to scale formation in the condenser pipe after long-term use. If it is not treated in time, these scales will affect the heat exchange effect and cause the condensing temperature of the unit to increase

08/25/2020

Mitsubishi inverter air conditioner basic principle training

1. The difference between inverter air conditioner and fixed frequency air conditioner <br></br> 　　 1. Different compressors