KOGANEI Solenoid Valve 110-4E2-PSL

07/08/2020

This is the key method to solve the leakage problem of fan coil

The fan coil and fresh air system is a widely used air-conditioning method. Because of its flexible layout and the ability of each room to be adjusted independently, it is commonly used in hotels, hotels, office buildings, hospitals and other buildings. However, many problems are often caused by mistakes in construction and design, and the most common one is water leakage.

08/14/2020

How to deal with the leakage of refrigerant in the battery test box

The battery test chamber is cooled by an air-cooled compressor. Its working principle is the same as that of air-conditioning. In the refrigeration process, a refrigerant is used for cooling.

07/07/2020

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

06/14/2020

How to choose the matching type of cold storage

A, high temperature cold storage (± 5 ℃): suitable for the preservation of fruits and vegetables; B. Medium temperature cold storage (-10 ℃ ~ -5 ℃): suitable for food refrigeration after freezing; C, low temperature cold storage (-20 ℃ ~ -10 ℃): sui器2䀀
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08/11/2020

How to clean the central air conditioning cooling tower

The cooling tower is exposed to the outside for many years, and the fan’s adsorption power is very strong, so that a large amount of sand and dirt will enter the tower.

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.

08/03/2020

The air conditioner only cares about food and clothing, and floor heating can enjoy life

With the improvement of living standards, people are no longer satisfied with "warmth", but also want "comfort" and high-quality life.

08/17/2020

Tubular heat exchanger tube bundle failure and flange leakage

1. Tube bundle failure 　　 1. Corrosion and abrasion of the tube bundle cause tube bundle leakage or scale in the tube bundle causes blockage and malfunction

07/03/2024

Proportional Valve vs. Solenoid Valve vs. Servo Valve

The way the valve controls the fluid can be divided into two types: one is on/off control, either fully open or fully closed. Examples for this type of valve include ordinary direct-acting solenoid valves, solenoid-operated directional valves, electro-hydraulic directional valves, etc.

11/13/2021

Basics of Industrial Control System and the Use of PLC

The components of industrial control system (ICS) can be roughly divided into two categories according to their location: control center equipment and remote site equipment.