First post - so go easy on me if this has been covered elsewhere 
Some long range research for a machine upgrade. What is the difference between rotary vs vibrating pumps ?
- Does one develop "better" pressure ? (Putting this another way when they quote 15 bar pressure on most machines is this against a given load ? I vaguely remember pump volume/load curves from a past life...)
- Do rotary pumps just get used on high end machines because they are plumbed ?
- Is there any real difference in most machines or is there some kind of check valve (i have heard OPV bandied around in literature) which is the limiting factor ?
- Does pump type/quality influence shot quality at the end of the day ?
Ive only cracked open my via venezia a couple of times, and dont really know the inner workings of many machines - so if anybody out there does it would be great to know.

Some long range research for a machine upgrade. What is the difference between rotary vs vibrating pumps ?
- Does one develop "better" pressure ? (Putting this another way when they quote 15 bar pressure on most machines is this against a given load ? I vaguely remember pump volume/load curves from a past life...)
- Do rotary pumps just get used on high end machines because they are plumbed ?
- Is there any real difference in most machines or is there some kind of check valve (i have heard OPV bandied around in literature) which is the limiting factor ?
- Does pump type/quality influence shot quality at the end of the day ?
Ive only cracked open my via venezia a couple of times, and dont really know the inner workings of many machines - so if anybody out there does it would be great to know.




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