Naipu® NP-L series rugged heavy duty slurry pump for medium to lower heads.It incorporates the same design points of the NP-AH(R) and plus higher efficiency impellers at an attractive initial cost.Designed for rugged duties while offering higher efficiencies, the NP-L series is a combination of the proven NP-AH(R) unique features.The pump is available with interchangeable liner options including both metal and various grades of elastomer depending on the application.

Design Features:

• Bearing assembly – a large diameter shaft with short overhang minimizes deflection and contributes to long bearing life. Only four through bolts are required to hold the cartridge type housing in the frame.
• Liners – easily replaceable liners are bolted, not glued, to the casing for positive attachment and east of maintenance. Hard metal liners are completely interchangeable with pressure molded elastomer. Elastomer seal rings back all liner joints.
• Casing – Casing halves of cast or ductile iron with external reinforcing ribs provide high operating pressure capabilities and an extra measure of safety.
• Impeller – front and rear shrouds have pump out vanes that reduce recirculation and seal contamination. Hard metal and molded elastomer impellers are completely interchangeable. Cast in impeller threads require no inserts or nuts. High efficiency and high head designs are also available.
• Throatbush – wear is reduced and maintenance simplified by the use of tapered mating faces to allow positive accurate alignment during assembly and simple removal.
• One-piece frame – a very robust one-piece frame cradles the cartridge type bearing and shaft assembly. An external impeller adjustment mechanism is provided below the bearing housing for easy adjustment of impeller clearance.

Typical Applications--

Electric Factory Coal Preparation

Coal Washing

Chemical Medium Processing

Effluent Handling

Salt and Sugar Industry

Sand And Gravel Handling

Thickener & Tailings

Power Generation

Mineral Processing (coal, copper, gold, iron ore, nickel, oil sands, phosphate)