Danfoss Compressor SM148A7PBH

09/05/2020

Viscosity index requirements for air compressor lubricants

As everyone knows, air compressor lubricating oil is very important, and it is an indispensable necessity during the operation of oil screw air compressor. There are many functions of lubricating oil in screw air compressors, the most important of which is lubrication.

06/14/2020

Common failure causes of half-sealed piston compressor

Common failure causes of half-sealed piston compressor 1. The compressor cannot start normally 1. First check whether it is caused by too low power supply voltage or poor connection of the motor line: if the grid voltage is indeed too low, start again器2䀀
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02/27/2021

Working principle of servo motor (how servo motor works)

The rotor inside the servo motor is a permanent magnet. The U / V / W three-phase electricity controlled by the driver forms an electromagnetic field. The rotor rotates under the effect of this magnetic field. At the same time, the encoder of the motor feeds back the signal to the driver. The driver adjusts the rotation angle of the rotor according to the comparison between the feedback value and the target value. The accuracy of servo motor depends on the accuracy of encoder (number of lines).

08/24/2020

What are the specific operation methods for cold storage screw compressor maintenance

1. Disassembly method of screw compressor in cold storage 　　 Before the screw compressor of the cold storage must be overhauled, if possible, unload the slide valve to the "0" position, stop normally, and cut off the power supply.

01/03/2024

Printer Cooling: Methods, Common Problems ＆ Troubleshooting

Printers are familiar to everyone and are one of the essential office tools for work. From inkjet, dot matrix, laser, to the now popular 3D technology, printers have developed rapidly.

07/29/2020

What to do if the air-conditioning copper pipe leaks

What should I do if the air-conditioning copper pipe leaks? Why is the air-conditioning copper pipe leaking? Everyone is familiar with copper pipes for air conditioning.

07/07/2020

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

06/14/2020

Refrigerating oil replacement operation method

Refrigerating oil replacement operation method One. Replacing the freezing oil without internal cleaning: The compressor performs the pumping action, recovers the system refrigerant to the condenser side (note that the minimum suction pressure of the 器2䀀
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06/04/2024

Pneumatic Solenoid Valves: Common Faults and Solutions

The pneumatic solenoid valve is a widely used control component, and various faults may occur during its practical applications. The following will introduce some common faults and corresponding solutions of pneumatic solenoid valves.

06/26/2020

Maintenance method of refrigerator compressor without stopping

Maintenance method of refrigerator compressor without stopping The focus of non-stop compressor maintenance is on the cooling effect. If the cooling effect is normal without stopping, the fault is in the thermostat. Otherwise, it is because the system lacks fluorine and the temperature falls below the control point, which results in non-stop. When repairing,