Hi, all ,

need some help regarding compressor from subject ...

actually it is HOWDEN- MK4-XRV 204193MVi

I cannot find what is distance between coupling flanges ...I can calculate it, but I hope someone is familiar with ...

Another question is ... what about grinding of balance piston sleeves to get discharge end clearance i.e. is there too much material to grind or not ...

what if sleeves are too short i.e. outlet end clearance is bigger then 0,25 .. available some shims (like SAB units) or need to order new sleeves ... must be quite expensive then ...

Yes and there is a little gap on the top of slide valve on both side ... hope to be very quiet, because it is not on VFD but on 50Hz and actually is working at 100% most of the time ...

Rotors are like new with 35150 working hours ... no scratches at all ....

Thanks for your time and effort.

Best regards, Josip