Shihlin Contactor M-35CL

08/14/2020

How to deal with the cold storage without defrosting

What should I do if the cold storage does not defrost? How to deal with this problem? The following will explain why the cold storage does not defrost and the solution.

06/30/2022

4 Practical Types of Piston Pump

Types of piston pump – Pumps have become an indispensable component of all domestic and industrial applications.

08/09/2020

What is the reason that the temperature of the freezer cannot drop

It is a common phenomenon that the temperature of the supermarket freezer does not drop and the temperature drops slowly. Now I will briefly analyze the reasons for the slow temperature drop, hoping to bring some help to friends in the industry.

08/24/2020

HVAC knowledge

1. The expansion water tank is used in the heating system to store the expansion water after the system is heated, and plays the role of exhaust in the natural circulation up-and-down system.

07/19/2020

Why does the scroll refrigeration compressor reverse? What about reversal?

We know that the operation of the internal compression structure of the refrigeration compressor has a fixed direction. First of all, we need to make it clear: the occurrence of reverse rotation must be unfavorable for the refrigeration compressor.

07/07/2020

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

09/15/2020

The difference between micro vacuum pump and gas sampling pump

Usually we call small-volume pumps that can generate negative pressure as micro-vacuum pumps, but we must strictly distinguish them when selecting products.

08/17/2020

Features of screw and centrifugal chillers

The chiller is a kind of water-cooled equipment as its name implies, but it is a mechanized equipment that can provide constant temperature, constant pressure and constant current.

07/24/2020

Introduction to screw refrigeration compressors and precautions for use (technology sharing)

　　Screw refrigeration compressors and piston refrigeration compressors are the same in terms of gas compression, and both belong to positive displacement compressors, that is to say, they both compress gas by volume changes.

08/16/2020

Installation skills and precautions for branch pipes, you absolutely need!

Nowadays, the household goods on the market are also dazzling. Every different item needs a channel to connect. As some channels that can connect, there are also many types.