KEYA Vane Pump VPC-40-7.0

08/24/2020

Reason analysis of refrigeration compressor can not start or stop soon after start

1) First check the main circuit. Whether the power supply has power, whether the voltage is normal, whether the fuse has been blown due to starting overload, whether the air switch has tripped, whether the switch contacts are good, and whether the power supply is missing phase. Observe the voltmeter and ammeter when starting. When the small-scale refrigeration and air-conditioning equipment does not have an ammeter or electric meter, a multimeter or electric pen can be used to check the power supply. When the power supply voltage is too low, the compressor will not start.

01/16/2021

Refrigerator compressor maintenance case

Refrigerator compressor maintenance case Case description: The repair is a Refrigerator 220 direct-cooled refrigerator, which starts after the contact is stuck, causing the refrigerator compressor to start normally and sometimes abnormally.

07/11/2022

6 Reasons for Why Mechanical Seals Fail

You might be asking yourself, why are my seals failing so fast, and how can I prevent this from happening? This topic rings true among operators and engineers in plants of all sizes and industries.

08/08/2020

Calculation method of power cord size of industrial chiller

In the field of industrial chillers, how is the size of the power cord calculated? Let's go see how it works?<br></br> 　　The working temperature is 30℃, and the current carrying capacity under long-term continuous 90% load is as follows:

05/12/2025

A Complete Guide to CPU Liquid Coolers: Composition, Working Principle, Types, and Pros and Cons

With increasing requirements for computer hardware and operating speed, there are higher and higher requirements for the cooling performance of computers.

06/14/2020

Overhaul of industrial refrigeration semi-closed and fully enclosed refrigeration screw compressors

Overhaul of industrial refrigeration semi-closed, fully enclosed refrigeration screw compressors, the difference between fully enclosed and semi-sealed refrigeration compressors

08/24/2020

What are the irrelevant and unreasonable requirements in air conditioning procurement

As a device commonly used in daily life and work, the purchase demand for air conditioners is strong all year round. Looking through the bidding documents of the government procurement of air-conditioning projects,

09/15/2020

The technical status and development trend of air compressor

I. Introduction Compressor is a machine used to increase gas pressure and transport gas, and belongs to a working machine that converts the power energy of the prime mover into gas pressure energy. It has a wide range of types and uses, and is known as "general machinery".

07/07/2020

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

09/22/2023

Water-Cooled Chiller vs Air-Cooled Chiller: Which One is Better?

When it comes to cooling systems for large commercial buildings or industrial facilities, two of the most common options are water-cooled chillers and air-cooled chillers. Both types of chillers are designed to remove heat from a building or industrial process, but they operate in different ways and have their own unique advantages and disadvantages.