HONGYI Vane Pump PV2R3-153-FR

05/21/2025

Have you figured out the "enthalpy" and "entropy" of the refrigeration system?

1. Enthalpy<br></br> It is a kind of energy, used to indicate the thermal state parameter of the state of the refrigerant, it represents the size of the total energy of the refrigerant; namely:

08/19/2020

What should be prepared before the central air conditioner starts, come and see!

In recent years, with the rapid development of central air-conditioning in China, central air-conditioning is frequently touched during work and day. Everyone is enjoying the comfort brought by central air-conditioning,

08/27/2021

Why a Compressor is Used in the Refrigeration System

Why are refrigeration compressors used in small and medium-sized refrigeration systems? The compressor is the core equipment in the refrigeration system

07/31/2020

What kind of equipment is suitable for high and low pressure refrigerant charging method

There are generally two types of refrigerant charging methods: low-pressure charging and high-pressure charging. The advantage of the low pressure charging method is that it is easier to control the amount of refrigerant charged,

06/22/2020

What is the air conditioner that only cools

An air conditioner with only a cooling function is called a single cooling type air conditioner. 1. The single-cooled air conditioner is used in areas in the north or the south that are not cold in winter; 2. The single-cooled air conditioner model generally starts with KF; 3. Before you use the single-cooled air conditioner again, you need to clean and maintain first; 4 1. When using a single-cooling air conditioner in summer, the temperature cannot be set too low. Generally, the air conditioner temperature should be set to 26-27 degrees. <img src="{{media url=&quot;magefan_blog/What_is_the_air_conditioner_that_only_cools.jpg&quot;}}" alt="" />

06/23/2020

Advantages and disadvantages of Hitachi central air conditioning

At present, the central air-conditioning of the refrigerant system is still the best done by Japanese brands. When it comes to Japanese central air-conditioning, one has to say that Hitachi, one of the Japanese air-conditioning BOSS, is a well-known international central air-conditioning brand. Most air conditioners now use scroll compressors as the core of power, and the world’s first scroll machine for air conditioning was manufactured by Hitachi in 1983.

06/20/2020

The main reason for the slow heating of air conditioners

There are several reasons for the slow heating of air conditioners: 　　 The dirt of the transpiration device and the condenser is too thick, which will cause air flow blockage, affect the heat declaration, and make the air conditioning heating a big discount. The filter is not cleaned for a long time<img src="{{media url=&quot;The_main_reason_for_the_slow_heating_of_air_conditioners.jpg&quot;}}" alt="" />

06/19/2024

3 Common Hydraulic System Problems: Causes and Solutions

Hydraulic systems are widely used in various industrial sectors such as machine tool industry, engineering machinery, mining machinery, agricultural machinery, and automobile industry.

08/08/2020

How to deal with the noise of air-cooled heat pump unit

The scroll-type air-cooled heat pump unit adopts a noise control plan with a sound insulation cover installed to control its noise. The specific plan is as follows:

06/29/2020

How the compressor works