Specifically designed for installation in international-style fire trucks, the compact, rear-mounted HL series pumps have built-in high-pressure relief valves. The HL400 has ratings of 4000 L/min @ 10 bar (low pressure) to 400 L/min. @ 40 bar (high pressure). All HL models provide brigades with rear-mount pumps capable of simultaneously producing high pressure and low pressure.

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  • Corrosion-resistant anodized aluminum or bronze body (gunmetal)
  • Wear-resistant anodized aluminum, flame-plated hubs Low Pressure Impeller
  • Bronze High Pressure Impeller
  • Stainless Steel Impeller Shaft
  • Bronze Wear Ring
  • Maintenance-free mechanical seal
  • Available with K Gear Drive Transmission
  • Available in Clockwise or Counterclockwise rotation (not available on bronze models)
  • Constructed of anodized aluminum, the pedestal supports the Waterous automatic piston primer and main bearings
  • Anodized aluminum or bronze Intake with 30°droop, two auxiliary 4” side flanges
  • HL400 available with 6 in. BSP, 5 in. Victaulic® connection, 150 mm Storz® or 4 in. BSP dual intake
  • Anodized aluminum or bronze discharge manifold with six discharge outlets (2) Anodized aluminum non-return discharge valve (Low Pressure)
  • Interstage Crossover Valve: The valve incorporates both a built-in high pressure relief valve and a removable strainer for the high pressure stage inlet
  • 275 lbs (125 kg)

Options and Accessories

  • The Waterous Round-the-Pump Foam Proportioner is an easy-to-use, compactly designed unit capable of retrofitting on any Waterous HL series pump. It has preset positions for 1%, 3%, or 6% proportioning, with foam pick-up connections for either an on-board tank or foam container, and provides foam to high and low pressure discharges.
  • Bronze (gunmetal) construction.
  • 7-Year Limited Warranty with Total Protection Package (TPP-5): The Total Protection Package is a comprehensive warranty that increases your standard 7 year warranty to include labor expenses to dismantle, remove and reinstall covered products or parts for a period of five years.


Dimensional Drawings
Service Parts Lists
Spec Sheets


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