NACHI Vane Pump UPV-0A-8N3-2.2-4-40

07/29/2020

Air conditioning chilled water pump lift estimation method (including examples)

The so-called selection and calculation of water pumps are actually estimates (many calculation formulas themselves are estimates), and more detailed and comprehensive considerations are accurate calculations.

06/30/2020

Lubrication method for air conditioner compressor fault maintenance

Lubrication method for air conditioner compressor fault maintenance The specific conditions of the lubrication method for air conditioner compressor fault maintenance are as follows:

09/04/2020

Talking about the filter selection of screw air compressor

In the post-processing equipment of screw air compressors, filters are also necessary and important. The function of the filter is to filter out the moisture and oil in the compressed air. The higher the level of the filter element, the higher the filtration accuracy.

07/07/2020

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

08/13/2020

How did the sediment in the chiller come from

Water chiller is a kind of water cooling equipment that can provide constant temperature, constant flow and constant pressure cooling water equipment.

07/09/2024

9 Famous Water Solenoid Valve Manufacturers Worldwide

water solenoid valve is a valve that is directly opened and closed by electromagnetic actuation. The following introduces 9 common water solenoid valve brands / manufactures / suppliers, including ASCO, Parker, SPORLAN, Burkert, VENN, Miller, Siemens, SMC, and Rain Bird. We hope it can help you select a water solenoid valve.

06/14/2020

Summary and development of scroll refrigeration compressor technology

Summary and development of scroll refrigeration compressor technology The scroll refrigeration compressor is a new type of refrigeration compressor that has only been practical for more than ten years. It is currently the most advanced compressor with a ﰸ2䀀
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06/14/2020

What is the principle of air conditioning expansion valve Technical stickers!

The electronic expansion valve is a throttling element that can enter the refrigerant flow of the refrigeration device according to a preset procedure. In some occasions where the load changes drastically or the operating range is wide, the traditional th器2䀀
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06/14/2020

How to prevent reversing of refrigeration compressor

How to prevent reversing of refrigeration compressor Reverse rotation is strictly prohibited after the refrigeration compressor is stopped. When the compressor rotor is stationary, a large volume of process gas remains in the pipeline at this time, and h器2䀀
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03/13/2021

Working mode of servo driver

The working modes of servo driver are: open loop mode, voltage mode, current mode (torque mode), IR compensation mode, Hall speed mode, encoder speed mode, tachometer mode, and analog position loop mode (ANP mode). (not all of the above modes exist in all models of drives)