• Bronze (cast iron optional), horizontally-split volute body and head with a high-tensile gray iron transmission casing.
• The transmission has constant mesh, helical gears made of alloy steel. All gears are crown shaved, carburized, hardened, have groundbores and are splash lubricated (CHK-4 model only).
• 17-4 stainless steel impeller shaft (monel offered on CHK-4 model only), heat treated, machined and ground to precision.
• Oil- or grease-lubricated deep-groove ball bearings, located outside the pump casing to accurately align and support the impeller shaft assembly.
• Fully-enclosed, bronze, double-hubbed precision-balanced impeller.
• Bronze replaceable wear rings to increase pump life and minimize maintenance costs.
• Standard 8" bronze ANSI intake flange with adapter or 10" flange without adapter.
• 5" discharge flange.
• Mechanically seal is standard.
• 5-year warranty.

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• 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.
• Oil Cooler Piping: Water from the pump is routed through the transmission via copper tubing to keep transmission cool and running smoothly.
• 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.

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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)

pumpsales@waterousco.com

Service Assistance

Phone: 651-450-5200

Fax: 800-488-1228

service@waterousco.com

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