Rotary Lobe Pump SLR-A




The SLR-A pump is a positive displacement lobe rotor pump designed to transfer abrasive products. The pump offers high perfromance and reliability. It is characterised by a reduced size, detachable connections and rectangular casing inlet. The SLR-A pump is designed to pump olive mass. The main application is the transfer of the mass from the thermobeater to the decanter and the transfer of alperujo, solid olive-mill by-product, from the thermobeater to the decanter.

Operating principle

The SLR-A pump basically consists of two wing-lobe rotors which rotate inside the casing without touching each other. As the rotors rotate, the space between the lobes and the casing is successively filled with the product which is driven to the discharge nozzle displacing a fixed amount of product. The pumped product forms a continuous stream due to the adjusted tolerances between the lobes and the pump casing, thus, ensuring an efficient pumping.

Design and features

Close-coupled construction with elastic coupling.
Casing and covers with anti-wear plates.
Wing-lobes treated for work with abrasive products.
Lobes attached with hexagonal screws.
Detachable connections: DIN 11851.
Easy disassembly and maintenance.
Low maintenance service costs due to the anti-wear plates covering the parts in contact with the product.
90º adjustable casing and inlet/outet.


Various types of drive.
Vertical inlets.


Parts in contact with the product: Anti-wear material
Support: GG 25
Gaskets: NBR
Retainer: FPM