The pumps of this series are made in horizontal execution, a solution providing several advantages if compared with the vertical one and which has been chosen by Peroni since the mid 60's, when the production of vertical pumps was basically discontinued.
The series includes two pump sizes, 160 and 190. For each size triplex and quintuplex versions are available together with a septuplex model for the 190 size.
Quintuplex or septuplex pumps, compared with a triplex pump of equivalent performances, have reduced static and dynamic loads and lower pressure pulsations which simplifies piping design. Thus result higher reliability, less maintenance and smoother operation of the pump.
The smallest pump of the series, model PTO 160, is available also in a version adopting the traditional shaft support with two roller bearings at the shaft ends, together with all the other characteristics of the series.
The PTO/PQO/PSO series covers the highest range of performances required by the market of reciprocating pumps and its flexible design allows the installation of both plunger and piston type liquid ends.
