Similar in design to the Schurco® S Series, the L Series has the same rugged design features with higher efficiencies. It is offered fully lined with split outer casings.
Schurco Slurry® L Series pumps maintain the ruggedness and slurry handling capacity of the S Series, but with a wider range of flow rates and lower life cycle costs. Higher efficiency impellers make the L Series a valuable feature in any plant.
Flow rate and head delivered at reduced initial and life cycle costs with greater efficiency over the S series
Designed for Class III and below slurries, retaining the ruggedness of a heavy-duty slurry pump
Impellers – higher efficiency rates (up to 90+ %) – pump out vanes to reduce recirculation within pump, and aid in preventing seal contamination; impeller clearance is adjustable to maintain efficiency over the life of the part.
Liners – alloy or thick elastomer liners provide superior erosion and corrosion resistance
Expeller (Centrifugal Seal) – no external sealing water required where applicable
Stuffing Box – flushed gland sealing with braided packing and a lantern ring
Mechanical Seals
Cartridge-style bearing housing allows for removal from pump and assembly in a controlled environment
Oversized shaft diameters and reduced overhang in the wet end contribute to long life and reliability in the field
The stuffing box is the original shaft seal for any rotating element through a fixed device. This seal has stood the test of time, and is still one of the most common sealing arrangements in slurry pumps. Seal water must be supplied at a pressure in excess of pump discharge pressure.
A mechanical seal consists of two principle components. One component is stationary and the other rotates against it to achieve a seal. There are many types of mechanical seals, ranging from simple single spring designs to considerably more complex cartridge seal types, which are the type most commonly applied on slurry pumps. The design, arrangement and materials of construction are essentially etermined by the pressure, temperature, speed of rotation and product being sealed (the slurry).
The Schurco expeller seal can operate completely leak free during pump operation.
The expeller rides along the shaft and expels material from the expeller ring cavity. Consideration must be given to inlet pressure and pump speed to ensure proper sealing with this type of seal arrangement. The typical installation introduces grease in lieu of seal water to provide a static seal against the inlet pressure when the pump is not operating.
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