7CP6111-7CP6111C-7CP6171-7CP6171C-7CP6111G1

Summary

Product identification

This summary covers the CAT Pumps 7CP Stainless Steel Plunger Pump series, including models:

• 7CP6111
• 7CP6111C
• 7CP6171
• 7CP6171C
• 7CP6111G1

The "C" models (7CP6111C, 7CP6171C) feature a special flushed manifold.

Operating limits

• Inlet Pressure Range: Flooded to 70 psi (Flooded to 4.9 bar)
• Maximum Liquid Temperature: 140°F (60°C)
  • Note: Above 130°F, consult Cat Pumps for inlet conditions and elastomer recommendations.
• Pressure Range (all models): 100 to 2000 psi (7 to 140 bar)

Electrical

The following horsepower requirements are for operation at specified pressures:

• Note: Horsepower requirements are calculated using a 1725 rpm motor and a standard 9.75” pump pulley for belt-drive models.
• Engine RPM (7CP6111G1): 3400 rpm

Formulas provided for calculations:

• Determining Pump RPM: (Rated gpm / "Desired" gpm) = (Rated rpm / "Desired" rpm)
• Determining Required H.P.: (gpm x psi) / 1460 = H.P. Required
• Determining Motor Pulley Size: (Motor Pulley O.D. / Pump rpm) = (Pump Pulley O.D. / Motor rpm)

Mechanical / hydraulic

Common Specifications

• Bore: 0.866” (22 mm)
• Crankcase Capacity: 38 oz. (1.15 l)
• Inlet Ports (2): 3/4” NPTF
• Discharge Ports (2): 1/2” NPTF
• Flushing Ports (2) (7CP6111C, 7CP6171C): 1/8” NPTF
• Shaft Diameter: 0.945” (24 mm)
• Weight (7CP6111, 7CP6171): 29.1 lbs. (13.2 kg)

Model-Specific Specifications

• MODEL 7CP6111, 7CP6111C
  • Flow: 10.5 gpm (40 l/m)
  • Pump RPM: 1750 rpm
  • Stroke: 0.854” (21.7 mm)
• MODEL 7CP6171, 7CP6171C
  • Flow: 10.5 gpm (40 l/m)
  • Pump RPM: 1450 rpm
  • Stroke: 1.024” (26 mm)
• MODEL 7CP6111G1
  • Flow: 10.0 gpm (38 l/m)
  • Pump RPM: 1667 rpm

Features

• 316SS head with optional FPM and EPDM elastomers for compatibility with a wide range of liquids.
• Flexible coupling/bell housing, gearbox, and belt drive options for compact footprints.
• Rugged continuous-duty triplex design for long life and low maintenance.
• Special flushed manifold with 7CP6111C and 7CP6171C permits external flush for added cooling with high-temperature liquids and lubrication with low-lubricity liquids.
• Concentric, high-density, polished, solid ceramic plungers.
• 100% wet seal design.
• 316 Stainless steel valve and seats.
• Exclusive specially formulated V-Packings.

Dimensions and Parts

Detailed dimensional drawings and an extensive parts list with material codes are available in the official PDF.

Safety Note

All High Pressure Systems require a primary pressure regulating device (e.g., regulator, unloader) and a secondary pressure relief device (e.g., pop-off valve, relief valve). Failure to install such relief devices could result in personal injury or damage to pump or property.

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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 on the project.

Official datasheet (PDF)

Lenntech datasheet mirror