HONGFA Relay HF172F-100-9-HF

12/17/2022

Okmarts announces US$17m acquisition of motors8.com

As a multi-category industrial product mall, Okmarts has been deeply involved in the professional field of industrial accessories for many years, providing thousands of customers with high-quality solutions and industrial products of different categories.

08/31/2020

Data analysis of air compressor energy consumption and heat recovery benefit

1. Compressed air energy consumption and cost analysis 　　 Compressed air is one of the most widely used power sources in the industrial field. Due to its many advantages such as safety, pollution-free, good adjustment performance, and convenient transportation,

09/11/2020

Summary Essentials of water treatment for central air-conditioning chillers

Looking at the management of central air-conditioning throughout the country, it is found that very few are well managed, and all have problems of one kind or another to varying degrees. The main problems are described as follows: 1. Problems caused by the unreasonable design of the design department

07/14/2020

Requirements for the use of freezing oil

Requirements for the use of freezing oil Due to the different use occasions and refrigerants, the choice of refrigeration oil for refrigeration equipment is also different. The requirements for freezing oil< are as follows: 1. Freezing point: The temperature at which the freezing oil is cooled to stop flowing under the experimental conditions is called the freezing point. The freezing point of the refrigeration oil used in refrigeration equipment should be as low as possible (such as R22 compressors

08/14/2020

Why is the central air conditioner dripping Tracing the source to solve the problem

Central air-conditioning is comfortable and convenient, which is not to be missed for people who pursue high-quality life. In the process of using the central government, it is inevitable that you will encounter some problems.

06/14/2020

Air Conditioning Preventive Maintenance [Checklist]

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06/14/2020

External balance thermal expansion valve

The difference between the external balance type thermal expansion valve and the internal balance type in structure and installation is that the space under the diaphragm of the external balance type valve is not in communication with the outlet of the va器2䀀
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03/18/2024

What Is a Closed Loop System (Servo System / Servomechanism)?

As shown in the figures above, the closed-loop control system has a feedback device to feedback the position of the servo motor, but the open-loop control system does not.

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

08/14/2020

Commissioning of the water system (heat source) of the air conditioning system-equipment commissioning

Water test operation of surface cooler and spray device in air conditioning unit. Check whether the pressure difference between the inlet pipe pressure and the outlet pipe pressure of the meter cooler is within the normal range and whether there is water leakage; whether the water trap of the meter cooler is installed correctly and whether the discharge is smooth.