two stage reciprocating bitzer compressor in parallel R22

Dear Sir,,

Kindly help me to get more details about :
Bitzer reciprocating two stage compressors in parallel

i want to know:
refrigeration piping system
the system need oil cooler or no.
the system need flash chamber or no.

any one have a manual in this topic please send it to me

Regards,,

Hi colleague,

Here you have a link for a web in Spain where they work a lot with Bitzer industrial applications. As far as I know, oil cooler isn´t needed in those reciprocating compressor. Flash camber isn´t also needed, we use an economizer (plate heat exchanger) to subcool the liquid with evaporation of liquid which is sucked by the compressor in its 2nd stage.

http://pecomark.com/catalogostecnicos