Proautox Twin-Screw Pumps are self-priming, double ended positive displacement pumps with external timing gears and bearings. Manufactured in over 80 sizes, their design provides complete axial balancing of the rotating elements and eliminates all metal-to-metal contact within the pump.

    They can handle virtually any non-homogeneous fluid, regardless of viscosity, lubricity or abrasiveness e. g. seawater, bitumen, molasses, lime, acid, caustic solution or hydrocarbon.

Principle

    While pumping there is no metal-to-metal contact within the pump housing. This allows good pumping performance even with non-lubricating and corrosive and contaminated fluids.

    As the pump rotates, the intermeshing of the two screws along with the pump housing form chambers. These chambers fill with the pumped fluid and move it from the suction side of the pump to the higher pressure discharge side of the pump.

    The pump is designed to allow for reverse flow by simply changing the shaft direction. The suction becomes the dis-charge and vice versa, all without any modifications to the pump.

Advantages

    Wide range of applications

    Self-priming

    Pumped capacity proportional to speed

    Compact construction

    Direct drive without speed-reducer possible

    Change of pumping direction - simple

    Pumping elements - simple to replace

    Easy maintenance

    For almost all media and fluids

    High viscosities possible

    Low pulsations

    Low noise level

    Dry running possible

    Constant flow on varying pressures and volumes

    Very good suction performance up to NPSH 1 - 1,5 m/3 - 5 feet

    Engineered 2-piece shaft and screw construction

Scopes of Application

    Up- and Midstream

    Downstream

    Marine

    Offshore

    Industry

    Food and Pharma