Technically, vapor is a fuel which is under its essential temperature, which means that it may be condensed right into a liquid by increasing its pressure and with out reducing the temperature. An open compressor has a motor drive which is outside of the refrigeration system, and supplies drive to the compressor via an input shaft with suitable gland seals. Along with the operational controls, separate excessive-strain and low-stress switches are normally utilised to supply secondary protection to the compressors and different elements of the system from operating exterior of safe parameters.

In small refrigeration programs the oil is allowed to circulate all through the whole circuit, but care have to be taken to design the pipework and ezigarettebestellen elements such that oil can drain again beneath gravity to the compressor. The type of oil could also be mineral or liquidkaufen synthetic to go well with the compressor sort, and likewise chosen so as not to react with the refrigerant kind and vapegunstige other components within the system. In such systems, the condensed liquid refrigerant may be routed into a stress vessel, called a receiver, from which liquid refrigerant is withdrawn and routed by a number of pipelines to the a number of growth valves and evaporators.

Large business or industrial refrigeration systems may have a number of growth valves and multiple evaporators to be able to refrigerate multiple enclosed spaces or rooms.

The most common compressors utilized in refrigeration are reciprocating and scroll compressors, but giant chillers or industrial cycles might use rotary screw or centrifugal compressors. Rotary screw compressors are additionally positive displacement compressors. Reciprocating compressors are piston-type, positive displacement compressors.

However the use of liquid injection for extra cooling can generally overcome this problem in most airtight motor compressors. Compressors are often described as being either open, airtight, vapegunstige or semi-airtight, to explain how the compressor and/or motor is situated in relation to the refrigerant being compressed. Typically in hermetic, and most semi-hermetic compressors (generally known as accessible hermetic compressors), the compressor eliquidpremium and motor driving the compressor are built-in, vapeglobal and function within the refrigerant system.