The Pedrollo 4SR12/29 is a 4" (Ø 98 mm) hydraulic well pump part, completely made of stainless steel AISI 304 with technopolymer impellers. The Pedrollo 4SR12/22 is suitable for 4 '' Pedrollo or Franklin electric motors of 10 HP.

A maximum of 150 grams of sand per M³ can be pumped. The maximum medium temperature is 30 °C.

This pump part has a 2" pressure connection, a maximum pump capacity of 18000 litres/hour and a maximum head of 17.8 bar.

Pump curve Pedrollo 4SR12/29

Capacity (litres/min) - head (bar)

40 litres/min - 17.8 bar
80 litres/min - 17.1 bar
120 litres/min - 16.2 bar
160 litres/min - 15.0 bar
240 litres/min - 11.6 bar
280 litres/min - 8.8 bar
300 litres/min - 7.1 bar

Pedrollo 4SR12/29 well pump specifications

In addition to the 4SR4/9, there are several other 4'' pump parts from 0.5 to 10 HP. We also have 6 '' pump parts in our range