NSK Linear Guideway NAH30GMZ

06/03/2025

Reasons and necessity of overhaul of oil-injected twin-screw air compressor

The structure of the main engine (also known as the head) of an oil-injected twin-screw air compressor is usually composed of a pair of mutually meshing screws, main engine casing, high-pressure end and end cover, and low-pressure end and end cover.

08/08/2020

Six common problems of central air conditioning

Six common problems of central air conditioning 1. The dew point temperature of the central air-conditioning machine is normal or low, and the reason for the slow indoor cooling and the solution

08/07/2020

How to vent the industrial chiller of the refrigerant refrigeration system

1. When using an air separator to discharge air, place the return valve of the air separator in a normally open state to reduce the pressure of the air separator to the suction pressure, and other valves should be closed.

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

07/23/2020

R410a and R22 refrigerant comparison application and installation specifications

1.Introduction to the properties of R410a refrigerant<br></br> 1. R410a is a HFCs refrigerant mixed with two working fluids of R32 and R125 at a mass fraction of 50% and 50%. It is a near-azeotropic mixture (pseudo-azeotrope), and its thermal performance is close to a single working fluid.

08/24/2020

Various business links of cold storage management system

Nowadays, many cold storage companies still adopt manual mode to manage cold storage business. The uncertainty of human factors has led to low labor efficiency and serious waste of human resources, and due to low efficiency

08/05/2020

How does the air conditioner collect fluoride

1. Method: The method of collecting fluorine should be correct. Under the state of turning on and cooling, open the covers of the two connecting pipe valves of the outdoor unit with a wrench, use 5 hexagonal wrenches,

08/07/2020

Knowledge points of HVAC cold and heat source design

1.The design position of the pump in the system: Generally speaking, the chilled water pump should be located at the front end of the chiller, and the chilled water coming back from the end is pumped back to the chiller through the chilled water pump;

05/10/2022

Common Faults and Solutions of Solenoid Valve?

Detection method: First, measure its make-break with a multimeter. If the resistance value approaches zero or infinity, it indicates that the coil is short circuited or open circuited.

07/14/2022

Common Types of Air Compressor

There are two methods of achieving air compression: positive and dynamic displacement. Each method has several sub-categories which we cover below.