Dear Friends,

Would you please make it clear for me ?

1 – I know we have discharge port in screw compressors instead discharge valve in semi-hermetic compressors, I know in industrial compressors we can change location or diameter of this discharge port to change Pi or Vi.
I have a question, In commercial brands such as Bitzer CSH compressors, Also can we change this port location or it is fixed ?

2 – Next question, A screw compressor can have Slide valve and Discharge port position changeable both of them ? Or if compressor have slide valve then discharge port would be fix ?

I will be very thankful if you make it clear for me.

Thanks.