The CLK / CLPA offers a one-piece design featuring intake and discharge arrangements in a wide variety of options to meet your requirements.

The PTO-Driven CL Series is available with a K-Series, gear-driven transmission designed for use with a side-mounted PTO or a PA Series, chain-driven transmission designed for use with an Allison Transmission with 10-bolt PTO.

CLVK (Front View)

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  • CLVK (Front View)
  • PA Series Transmission
  • China Compulsary Certification
  • CE Mark - Europe
  • Meets or Exceeds National Fire Protection Association Standards
  GPM L/min L/sec PSI Bar kPa MPa
MAXIMUM FLOW 500 2000 33 150 10 1000 1.0


  • High-tensile, close-grained gray iron (bronze/gunmetal optional), one-piece volute body
  • 17-4 stainless steel, heat-treated impeller shaft
  • Bronze, double-hubbed, precision-balanced impeller
  • Maintenance-free, self-adjusting shaft seal
  • Choice of 4-inch (101.4mm) NH or BSP threaded-end intake
  • Available with K Series or PA Series Transmissions
  • K Series consists of a close-grained, gray iron casing and constant-mesh, helical gears
  • PA Series consists of an aluminum case and is chain driven for silent operation
  • 5-year Limited Warranty

Options and Accessories

  • Priming System: An electric, oil-free rotary vane primer mounted directly on a Waterous split-shaft pump transmission or separately mounted combined with a Waterous priming valve forms the priming system. A lubrication option allows the use of Prime-Safe lubricant (priming tank is required when the lubrication option is selected).
  • Pressure Control System: The Waterous Intake Relief Valve system is designed to act as a safety valve by "dumping" excess pressure from the inlet side of the pump. The Discharge Relief Valve provides sensitive pump control to protect firefighters from sudden pressure surges resulting from changes in discharge flows from the pump.
  • Manifold Drain Valve: Drains all points of the pump simultaneously with the operation of a single control.
  • Corrosion Protection: Replaceable zinc element that is installed directly on the pump intake piping and into the pump waterway. These anodes sacrifice the zinc element to galvanic corrosion.
  • Discharge Valves: Your choice of the trusted Waterous 1/4 turn 2.5" and 3.5" ball-type discharge valve or a 4" ANSI flanged discharge valve. Both options come standard with chrome-plated brass ball and hydraulically balanced seal assembly.
  • Overheat Protection Manager: The OPM consists of an illuminated warning light on the operator's panel whenever the pump approaches an overheat condition. Optional audible alarm is available.
  • Intake Fittings: Choose from two styles of intakes, including a 4-inch NH or BSP threaded intake (model CLR) or a 4-inch Victaulic intake (model CLV).
  • Foam Manager: Consisting of a 500 or 1000 GPM foam manifold and foam proportioner.


 CLK / CLPA Series 
Pump Information  Transmission Information
Dimensional Drawings Data Sheet Instructions Performance Curves

Performance Sheets

Service Parts Lists Spec Sheets
 Dimensional Drawings Data Sheet Instructions  Service Parts Lists

Specification Sheet

Miscellaneous Items




Sales/Application/Service Help

Industry-leading sales and support.

When you purchase Waterous equipment, not only do you get quality products, you get quality service. Our expert service technicians are the best in the business and they are always happy to answer any service questions you might have. The numbers for our service and training specialists are listed below for your convenience. If you have a general service question please call our main number and our staff will kindly direct you to the appropriate department.

Sales/Applications Assistance

Phone: 651-450-5234 (Press 3)

Service Assistance
Phone: 651-450-5200
Fax: 800-488-1228

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