SICK Sensor UM30-21311B

08/16/2020

Air-conditioning peak season is approaching, be wary of free return and exchange mystery

Behind the high purchase rate of air conditioners, there is also the risk of high after-sales problems. Recently, a friend close to the editor bought an air conditioner of a certain brand, but he couldn't use it normally and had to return the product after repeated repairs failed.

07/31/2020

Five common problems of refrigeration system

Trouble phenomenon: The cooling effect of the whole machine is poor, the water outlet is only slightly cool, and the pressure on the high pressure side and the low pressure side are found to be low when checked with the manifold pressure gauge (under the normal speed of the compressor

05/19/2022

PLC Analog Input

PLC analog inputs usually use voltage signals in the range of 20 volts and current signals in mA. Each PLC manufacturer has I / O modules to process these types of signals

09/02/2022

The Working Principle of the Vacuum Contactor

The vacuum contactor uses the vacuum interrupter to extinguish the arc to frequently connect and cut off the normal working current.

09/04/2020

How are commonly used filters classified

The impurities contained in the compressed air of the pneumatic system are divided into four categories: solid dust, moisture, oil mist and odor. In order to meet the requirements of different industrial sectors on the quality of compressed air,

06/14/2020

Global Compressor Duty Motors Market 2020-2026 ABB, Mitsubishi, Toshiba, Siemens,

Global Compressor Duty Motors Market 2020-2026 ABB, Mitsubishi, Toshiba, Siemens ......Global first-tier brand compressor trading platform in okmarts.com

11/14/2022

How to Install an Industrial Exhaust Fan?

Factory production emits a lot of waste gas, and there are many workers gathered. For the sake of worker health and safety concerns, some exhaust fans are installed in factories to discharge exhaust gas.

06/14/2020

Internal balance type thermal expansion valve

Internal balance type thermal expansion valve The internal balance type thermal expansion valve is composed of valve body, push rod, valve seat, valve needle, spring, adjusting rod, temperature sensor, connecting pipe, sensing diaphragm and other compone器

08/12/2020

How to choose the expansion valve of air-cooled chiller How to judge high and low pressure

How to choose and install the expansion valve for industrial chillers, screw chillers, air-cooled chillers, and chillers: The choice of expansion valve and the performance of the air-cooled chiller refrigeration system play an important role, the correct ¨ﰨ2

07/07/2020

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