Bitzer 4NES-20Y-40P Semi Hermetic Compressor

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Bitzer 4NES-20Y-40P Semi Hermetic Compressor

A semi-hermetic compressor is a type of compressor commonly use in refrigeration and air conditioning systems. Semi-hermetic compressors have a sealing arrangement that allows access to the motor-compressor unit without exposing the internal components to the external environment. Semi-hermetic compressors are widely use in various applications, including commercial and industrial refrigeration, air conditioning systems, and heat pumps.
The semi-hermetic compressor has a bolted casing that can be opened and closed, unlike a hermetic compressor, which is sealed shut. This allows technicians to access the internal components, such as the motor and the compressor’s mechanical parts, for maintenance, repair, or inspection.
In a semi-hermetic compressor, the motor and compressor components are housed within the same casing. This is typical for both reciprocating and screw types of compressors.Since the casing is bolted and not welded, it can be opened for servicing or replacing internal parts, which reduces downtime and long-term maintenance costs.