1520

Summary

Product identification

• Models: 1520, 1521, 1525, 2520, 2521, 2525, 2520C
• Type: 25 Frame Piston Pump
• Sub-models:
  • Standard Brass Models: 1520, 2520
  • Stainless Steel Models: 1521, 2521
  • Pulse Pump Manifold Models: 1525, 2525
  • Hi-Temp Model: 2520C

Features

Superior Design

• Triplex Uniflow design provides continuous forward liquid flow for smooth operation.
• Wetted cups and floating pistons are lubricated and cooled by pumped liquid for long cup life.
• Mechanically actuated inlet valves give strong lift and easy prime.
• 304 stainless steel flat valve design offers positive seating and greater suction capabilities.
• Oil bath crankcase assures optimum lubrication.

Quality Materials

• Cylinder and sleeve wear surfaces are hard chrome plated 304 stainless steel for maximum durability and abrasion resistance.
• Chrome plated, brass manifolds and optional stainless steel manifolds are strong and corrosion resistant.
• Special high strength TNM connecting rods offer superior bearing quality strength.
• Chrome-moly crankshaft gives unmatched strength and surface hardness.
• Oversized crankshaft bearings with greater loading capacity mean longer bearing life.

Easy Maintenance

• Stepped stainless steel piston rod with chrome-plated, stainless steel sleeve allows easy replacement from front of pump.
• All wet-end wear parts are easily serviced without entering crankcase, requiring less time and effort.
• Wear parts are available in convenient kits.

Operating Limits

Model 1520, 1521, 1525

• Flow: 15 GPM (57 L/M)
• Pressure Range: 100 to 1000 PSI (7 to 70 BAR)
• RPM: 830 RPM (830 RPM)
• Bore: 1.122" (28.5 mm)

Model 2520, 2521, 2525 and 2520C

• Flow: 25 GPM (95 L/M)
• Pressure Range: 100 to 800 PSI (7 to 55 BAR)
• RPM: 772 RPM (772 RPM)
• Bore: 1.490" (38 mm)
• Inlet Pressure Range: Flooded to +40 PSI (Flooded to +2.8 BAR)
• Maximum Liquid Temperature: 210°F (98°C)

Common Specifications

• Stroke: 1.417" (36 mm)
• Inlet Pressure Range: –8.5 to +40 PSI (–0.6 to +2.8 BAR)
• Crankcase Capacity: 84 oz. (2.5 L)
• Maximum Liquid Temperature: 160°F (71°C)
  • Note: Above 130°F call CAT PUMPS for inlet conditions and elastomer recommendations.

Mechanical / Hydraulic

• Inlet Ports (1): 1-1/4" NPTF
• Discharge Ports (3): 1" NPTF
• Flushing Ports (2): 1/4" NPTF
• Pulley Mounting: Either side
• Shaft Diameters: 1.181" (30 mm)
• Weight: 69.3 lbs. (31.5 kg)
• Dimensions (Models 1520, 1521, 1525, 2520, 2521, 2525): 21.62 x 15.04 x 7.8" (549.15 x 382 x 198 mm)
• Dimensions (Model 2520C): 21.42 x 15.04 x 7.8" (544 x 382 x 198 mm)

Electrical

Electric Horsepower Requirements (Using 1725 RPM Motor & Std. 9.75" Pulley O.D.)

• Model 1520, 1521 and 1525:

  • Flow: 15 GPM (57 L/M)
    • Pressure 800 PSI (55 BAR): 8.2 HP
    • Pressure 1000 PSI (70 BAR): 10.3 HP
    • RPM: 830
    • Pulley O.D.: 4.7"
  • Flow: 12 GPM (45 L/M)
    • Pressure 800 PSI (55 BAR): 6.6 HP
    • Pressure 1000 PSI (70 BAR): 8.2 HP
    • RPM: 660
    • Pulley O.D.: 3.8"
  • Flow: 10 GPM (38 L/M)
    • Pressure 800 PSI (55 BAR): 5.5 HP
    • Pressure 1000 PSI (70 BAR): 6.9 HP
    • RPM: 550
    • Pulley O.D.: 3.1"

• Model 2520, 2521, 2525 and 2520C:

  • Flow: 25 GPM (95 L/M)
    • Pressure 800 PSI (55 BAR): 13.7 HP
    • RPM: 772
    • Pulley O.D.: 4.4"
  • Flow: 20 GPM (76 L/M)
    • Pressure 800 PSI (55 BAR): 11.0 HP
    • RPM: 620
    • Pulley O.D.: 3.5"
  • Flow: 15 GPM (57 L/M)
    • Pressure 800 PSI (55 BAR): 8.2 HP
    • RPM: 465
    • Pulley O.D.: 2.7"

Materials

Common materials used in construction include:

• Crankcase: Die cast aluminum
• Crankshaft: Chrome-moly
• Connecting Rods: Special high strength TNM
• Piston Rods: High tensile strength 304 stainless steel with Zamak crossheads
• Cylinder and Sleeve Wear Surfaces: Hard chrome-plated 304 stainless steel
• Manifolds: Chrome-plated brass or 316 stainless steel (optional)
• Valves, Seats, and Springs: 304 stainless steel
• O-Rings/Seals: NBR (Medium Nitrile/Buna-N), FPM (Fluorocarbon), PTFE (Pure Polytetrafluoroethylene), PVDF (Polyvinylidene Fluoride)
• Other components: Steel (STL), Chrome Plated Steel (STCP), Zinc Plated Steel (STZP), Acetal (D), Cast Iron (F), Forged Chrome-Moly (FCM), Nylon (NY), Polypropylene (POP), Special Blend (Buna) (SNG), PTFE Graphite Compound (GIT) (TG), PTFE-RLN (TR).

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror