SKF Oil Seal 25X40X10 HMSA10 RG (NBR)

07/18/2020

Fault analysis and treatment of excessive oil consumption of the refrigeration compressor of piston chiller

Commonly used chillers are divided into piston type, screw type, centrifugal type, and vortex type chiller according to the type of refrigeration compressor used. Their evaporators and condensers generally use shell and tube heat exchangers, the throttling device uses thermal expansion valves, the refrigerant is freon

07/05/2020

Inverter compressor and Hitachi

Inverter compressor and Hitachi What sparks can be produced by the combined use of electronic expansion valve and compressor? Electronic expansion valve and compressor are indispensable refrigeration accessories in refrigeration equipment and refrigeration equipment, and they are used together with high efficiency.

08/19/2020

What are the classifications of air conditioning refrigerants

The refrigerants widely used in compression refrigerants are ammonia, freons and hydrocarbons.<br></br> 　　 According to chemical composition, refrigerants can be divided into five categories: inorganic compound refrigerants,

06/25/2020

Briefly explain the principle, advantages and disadvantages of screw compressors

Briefly explain the principle, advantages and disadvantages of screw compressors The screw compressor has the characteristics of small size, light weight, easy maintenance, etc. It is a model that develops faster in refrigeration compressors. On the one hand, the screw profile and structural design have made great progress. On the other hand, the introduction of special milling machines for screw rotors, especially grinding machines, has improved the machining accuracy and processing efficiency of

06/14/2020

Compressor common fault handling

Compressor common fault handling Foam when starting with liquid When the air-cooled compressor is started, the phenomenon that the lubricating oil in the crankcase blisters violently is called liquid start. The basic reason for starting with liquid is 器2䀀
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08/04/2020

HVAC people, have you made these mistakes?

As a HVAC person, constantly summing up experience and accumulating knowledge in the work can be said to be a necessary quality, but as the saying goes, failure is the mother of success.

07/18/2022

Classification of Gear Pump

Gear pump is a kind of hydraulic pump widely used in hydraulic system, also known as hydraulic gear pump, which is generally made into a quantitative pump.

07/07/2020

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

08/21/2020

Three tips for cold storage board installation

n the refrigeration industry, cold storage panels with relatively low technical requirements have attracted a large amount of personnel and capital investment. The choice of the quality of the cold storage board is very important for the cold storage,

08/14/2020

Cold storage management, maintenance, use and troubleshooting methods

Treasury management should set up a special team, pay special attention to waterproof, moisture, heat, cold running, and fluorine escape, and strictly control the five barriers of ice, frost, water, doors, and lights.