Rexroth Filter R928047367

07/07/2020

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

09/02/2020

Basic theoretical knowledge points of air compressor air

1. What is the definition of the standard state of air? Answer: The definition of the standard state is: when the air suction pressure is 0.1MPa and the temperature is 15.6℃ (the domestic industry defines it as 0℃), the air state is called the standard state of air.

09/08/2020

What environment will affect the operation of the air compressor

The surrounding environment of the air compressor will also have a significant impact on the operation of the air compressor. The following phenomena are mainly caused by the analysis of the cause of the failure caused by the bad surrounding environment, so the user should try to meet the standard requirements when installing the air compressor to deal with the surrounding environment .

12/13/2024

List of Problems and Solutions for Centrifugal Air Compressor

As a speed type air compressor, centrifugal compressor can generate air flow moving in radial direction.

08/02/2020

What is the four-pipe air conditioner Under what circumstances

Four-pipe air-conditioning means that the air-conditioning box is equipped with cold coils and hot coils at the same time. Each group of coils is fed one time, a total of four, so it is called four-pipe.

09/11/2020

Bearing and shaft fit tolerance standard

Bearing and shaft fit tolerance standard ①When the bearing inner diameter tolerance zone and the shaft tolerance zone form a fit, the tolerance code originally belonging to the transition fit in the general basic hole system will become an over-win fit, such as k5, k6, m5, m6, n6, etc., but the over-win amount is not Large; when the bearing inner diameter tolerance is matched with h5, h6, g5, g6, etc., it is not a clearance but an over-win fit.

07/30/2020

Analysis of common failure causes of hermetic refrigeration compressors

The resistance between running terminal (R), starting terminal (S), common terminal (C), RS is greater than the resistance between SC and RC. The resistance between RS is equal to the resistance between SC and the resistance between RC.

06/17/2022

What is A VFD?

A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor.

08/20/2020

Daily maintenance and performance characteristics of air-cooled chillers

Although the air-cooled chiller is equipped with multiple protection devices, these are all to prevent failures from directly damaging the unit. If the company wants to ensure that the air-cooled chiller has high cooling efficiency and long service life,

09/09/2020

What are the benefits of oil-free screw air compressors

What are the benefits of oil-free screw air compressors? How to use oil-free screw air compressor? What are the benefits of using an oil-free screw air compressor?