Regarding the setting of the compressor inlet valve
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On the intake port of compressors, some are equipped with valves or vanes to adjust the compressor’s load, while others do not have such devices at the intake port. Is this related to the type of compressor or is it based on some other considerations?
What valve? Is it a check valve or a globe valve? A check valve is used to prevent gas backflow, while a globe valve is chosen depending on the requirements
When the air intake volume is constant or stable, it may be possible to omit air valves, as in MVR systems; otherwise, valves must be installed to prevent surging
It generally needs to be set up; firstly, to adjust the load according to operating conditions, and secondly, to prevent surging in the unit.
Generally, compressors are equipped with valves at the inlet, either butterfly valves or guide vanes; I’ve never seen any compressor without valves – it’s impossible for them to be designed that way! How to adjust flow rate without imported valves
They generally come with guide vanes to regulate the air intake volume
You mean the centrifuge, right? It’s not necessary to install one for reciprocating machines!
Centrifugal air compressors are equipped with inlet vane valves, which are used primarily to regulate the intake air flow. If the opening angle of the vanes is too low, meaning the intake air volume is below a certain level, surge will occur.
Centrifugal compressors must be installed, while reciprocating compressors do not.