NSK Bearing 6005 CE with seal

08/12/2020

Four steps in the use of parallel compressors in cold storage

The use of parallel compressors focuses on four issues, as follows: 　　①Keep the oil level 　　② Countermeasures for liquid flood back 　　③Protection device and accessory parts device 　　④Confirmation of piping stress

12/23/2022

What is an Erbium Doped Fiber Amplifier?

The erbium optical fiber amplifier (EDFA) is an optical amplifier made of optical fiber doped with erbium.

09/06/2020

Application of synthetic compressor oil

At present, synthetic lubricants are widely used in the compressor field. Among them, oil-injected and oil-immersed rotary screw air compressors and large reciprocating compressors are one of the most used markets. For example, the sales volume of synthetic compressor oil in Western Europe was 6000t in the late 1980s, and it rose to 10000 in the early 1990s. The sales volume in the United States has exceeded 15,000 tons, and it is increasing at a rate of more than 10% per year.

07/17/2020

Empty and replace the expansion valve after servicing the refrigeration system

Let's introduce the operation process when replacing the expansion valve in the refrigeration system. In the system, when the low pressure of the system is under pressure control, short-circuit the controller before venting the system to prevent the system from jumping during vacuum.

08/08/2020

Ten matters needing attention in the use of liquid nitrogen tanks

Liquid nitrogen tanks can generally be divided into liquid nitrogen storage tanks and liquid nitrogen transportation tanks. The storage tank is mainly used for the static storage of indoor liquid nitrogen, and is not suitable for long-distance transportat–ﰨ2䀀湠疖VǜV

06/29/2020

How the compressor works

09/10/2020

Knowledge of air compressor oil lubrication

Knowledge of air compressor oil lubrication What is the lubrication principle of air compressor oil? The lubrication principle of air compressor oil is to reduce friction. The so-called friction means that when two relatively moving surfaces undergo relative displacement under the action of external force, there is a relative contact surface called friction surface.

09/10/2020

Application of pressure sensor in air compressor safety management system

In the safety management system, the pressure sensor realizes the side airbag control. Air compressor safety management system is also a field where sensors are widely used. There are two solutions for controlling the side airbag of the air compressor:

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.

08/14/2020

Specification for selection and installation of refrigeration piping parts for chillers

The accessories of the refrigeration pipeline of the chiller mainly include various valves and connectors. Depending on the refrigeration system, the chiller's request for piping accessories is also different.