Danfoss Compressor DSF240A4AAG

09/06/2020

Design steps of two-wire AC current transmitter

Known high-current current transformers convert different currents into 0~5A alternating current for on-site display. For long-distance transmission, the current must be converted into a standard DC current signal of 4-20mA before transmission.

09/22/2020

Coking treatment of compressor cooler oil circuit

The economical and common methods for cleaning the oil circuit of the cooler during maintenance work: Using water pump circulation cleaning method:

09/18/2020

Performance comparison between piston compressor and screw compressor

The noise of the piston engine is loud and the maintenance is inconvenient. Most piston machines often have problems during use, which brings great inconvenience to users. At the same time, it can reduce the production cost of the factory, increase economic benefits, facilitate equipment management

12/06/2022

Top 7 Linear Guideway Brands

The linear guideway, also known as the linear guide, is used for high-precision or high-speed linear reciprocating motion.

08/06/2024

Excavator Repair Case Study: Speed Drop + Slow Action of the Excavator Stick

The stick and boom of the excavator are the "arms" of the construction machine. Whether it is used for loading, leveling slopes or digging trenches, any operation is inseparable from the precise tacit cooperation of them.

09/03/2020

Commonly used selection marks for compressor lubricants

1) Air-cooled piston shaft output power <20kW, select 32, 46, 100 (ambient temperature <-10 ℃ optional 32) DAA, DAB, DAC air compressor oil;

08/20/2020

Selection, installation and inspection of solenoid valves in cold storage

When selecting, the solenoid valve diameter of the same size as the pipeline should be configured according to the size of the cold storage refrigeration equipment pipeline.

06/29/2020

Compression ratio of American Copeland compressor

07/10/2020

Hitachi compressor features:

Hitachi compressor features: 1. Whether Hitachi compressors use refrigerant R22 or the new chlorine-free refrigerants R134a, R404A, R507A and R407C, they can operate smoothly and reliably.

07/07/2020

Behind the tearing of enterprises the central air conditioning market is facing a crisis

Behind the tearing of enterprises the central air conditioning market is facing a crisisIn fact, in the slump of the home appliance market in the past few years, the central air-conditioning market has been "another vigorous scene."