The Most Efficient Water Delivery Systems Available.

Waterous midship-mounted pumps provide fire industry professionals with easy-to-operate systems that offer the most efficient water delivery system on the market. Admired for their quality craftsmanship and exclusive design features, our midship pumps have become one of the primary firefighting tools of fire departments around the globe.

CS / CSU

Our single-stage CS/CSU pumps are reliable workhorses that feature simple operation coupled with easy maintenance.

• Flame-plated impellers (standard on CSU, optional on CS)
• Two-piece, horizontally-split, high-tensile strength cast iron pump casing
• Optional bronze (gunmetal) pump casing
• All deep-groove oil and grease lubricated ball bearings located outside the pump casing
• Bronze double-hubbed accurately balanced impeller
• Stainless steel separable impeller shaft
• Replaceable bronze impeller rings
• Finger rings mounted on impeller shaft
• Adjustable BFG packaging standard (spring-loaded mechanical seal available)
• Available with three transmission models (K, PA and C20)

CM / CMU

• Flame-plated impellers (standard on CMU, optional on CM)
• Two-piece, horizontally split, high-tensile strength cast iron pumping casing
• Optional bronze (gunmetal) pump casing
• All deep-groove oil and grease lubricated ball bearings located outside the pump casing
• Bronze double-hubbed accurately balanced impellers
• Stainless steel separable impeller shaft
• Replaceable bronze wear rings
• Flinger rings mounted on impeller shaft
• Adjustable BFG packing standard (spring-load mechanical seal optional)
• Available with three transmission models (K, PA and C20)

S100 / S100D

Get the power and performance of a traditional midship fire pump in a compact, lightweight design. Made of ductile iron, the S100 and S100D are nearly 35% lighter, and yet 25% stronger than identical pumps made with gray iron. Available as a direct-engine mount or matched with a Waterous aluminum case transmission.

• Cast ductile iron body
• Dual stripping edge volute
• Passive lubrication system
• Self-adjusting mechanical seal
• Mechanically and hydraulically balanced impeller
• Replaceable bronze wear rings
• All deep-groove anti-friction ball bearings, oil-splash lubricated
• 5-inch ANSI flange or optional end flange discharge manifold
• Available with two transmission models (PA and C20)
• 5-year warranty