P
HOLLOW OSCILLATING DISK PUMPS
USES AND APPLICATION FIELDSThe P range of pumps has been designed for use on wide ranging applications within the marine, chemical, petrochemical, paper, food and paint industries. It can pump different fluids from viscous and lubricating to aqueous ones and therefore seizing liquids, slightly and medium abrasive products, aggressive fluids, etc..
SELF PRIMING
The P pumps are self priming by construction even with empty suction pipes and no suction valve. Priming capacity is strong related to suction pipe layout and pumped liquid.
REVERSIBLE
The P pumps are reversible, that it to say they mantain their characteristics unchanged when they pump in both directions simply by reversing the direction of motor rotation.
LOW NUMBER OF REVOLUTIONS OF THE PUMPING PART
The P pumps have a maximum number of revolutions of 480 RPM; this means that the shaft, the bearings, the rotor with its elastic device rotate at a maximum of 480 RPM. A low number of revolutions guarantees a long life while maintaining its characteristics. As there are very few moving parts, reliability of the pump and its installations are thus guaranteed. Low speed is obtained by means of a gear box between motor and pump.
ELASTIC ECCENTRICITY OF THE PUMPING PLATE
The pumping oscillating hollow disk is kept in contact with the pump body by an elastic device (spring + cap). This device allows the passage of solid particles in suspension and it allows the recovery of the clearance due to wear, maintaining the characteristics of capacity and head of the pump even with viscous, abrasive or chemical fluids.
The hollow disk is pivoted eccentrically with regard to the pump shaft and is driven by a baffle-plate separating the suction port from the delivery one. The shaft rotation drags the hollow disk in an oscillating movement and keeps it always tangent to the outer and the inner cylindrical surfaces, thanks to two diametrically opposed generating lines, thus forming two movable hydraulic seals.
