POWTRAN VFD Frequency Converter PI9230 030G3/037F3

06/29/2020

How the compressor works

08/24/2020

What to do if the compressor of screw chiller is damaged

The compressor is the core component of the chiller. Damage to the compressor is a very serious fault and needs to be dealt with in time, otherwise the chiller will not work.

07/20/2020

Performance index of electronic expansion valve:

Advantages of electronic expansion valve: The energy efficiency ratio is improved during high-frequency and low-frequency operation; the reliability of the compressor is improved, and the conditions of oil return, l

06/14/2020

Causes and harms of non-condensable gas produced by refrigeration system

Non-condensable gas refers to air, hydrogen, nitrogen, lubricating oil vapor, etc. mixed in the refrigeration system.

11/20/2022

What are the Differences between Axial and Centrifugal Fans?

Axial fans and centrifugal fans are two different products in the fan category. Their main function is to ventilate the air in the environment.

09/10/2020

The status quo and development trend of China's gate valve market

Gate valves have the longest history of use, and are still used in various countries around the world, especially below DN300mm, which still dominate in various types of valves. The characteristic is that the pressure difference between the front and rear of the valve plate forces the valve plate to press on the valve seat on the right side of the outlet, with good sealing performance, and when the valve plate is fully opened, the pressure loss is small because the valve plate does not remain in the flow path. Used to cut off the medium in the pipeline.

08/26/2021

What is a Knock Sensor?

Cars have an airbag that everyone doesn't want to use because it plays a role in car collisions, but the airbag is on standby all the time, with the effect of a knock sensor

11/27/2024

Solenoid Valve: Function, Working Principle, Types, and Symbols

Solenoid valves play a crucial role in controlling the flow of liquids or gases in various industrial, commercial, and residential applications.

08/18/2020

Points to be mastered when operating the chiller

Water chiller is a kind of cooling water equipment that can provide constant temperature, constant current and constant pressure. The working principle of the chiller is to inject a certain amount of water into the water tank in the machine,

07/20/2020

For the failure of the constant temperature and humidity test chamber, the early inspection is very important

For the failure of the constant temperature and humidity test chamber, the early inspection is very important What should I do if there is an abnormality in the constant temperature and humidity test chamber, can we only wait for the after-sales personnel to come to check? Of course not. Only if the user has mastered some basic troubleshooting techniques, then he can solve it by himself and save his time.