The flow rate is 900 liters per hour, according a data sheet of Westfalia Separator.
The RPM is correct. Motor on power direct, without frequency controller. I already measured the rotation.
I don't know how can I identify if is a leaking, because all seal rings are OEM, all surfaces are ok.
I saw a different detail:
- When I opened this purifier first time, the seals mounteds in botton part bowl (item 335 of image) it was a rectangular ring. The new seal ring now is an O-RING.
- The height of the sealing edge on piston is variable between 2,5 and 2,7mm. The original height is 3 mm. I don't know if this is a problem.
- I was able to keep the purifier running with 0,5 bar for 14 hours, without discharge.
When I started the automatic control with discharge between 1 hour, started too the to break seal and alarms.
The purifier work intermittent. Sometimes work in a good operation and sometimes with breaking liquid seal.