The leading single-stage split-shaft fire pump on the market today is available as a direct drive pump providing efficient use of power and performance. Designed with a two piece, horizontally split body with intake and discharge passageways in a single casting and on the same level, this pump provides the lowest possible height, a lower center of gravity, and more room for hose reels, hose beds and other equipment.

When used with a TC20 Series Power Take-Off (PTO), the CS / CSU can be rear-mounted in an apparatus.


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  • CSD / CSUD
  • Meets or Exceeds National Fire Protection Association Standards
GPM 750, 1000, 1250
l/min 3000, 4000, 5000
l/sec 50, 65, 80
PSI Bar kPa MPa
150 10 1000 1.0
GPM 1500, 1750, 2000, 2250
l/min 6000, 7000, 8000, 9000
l/sec 100, 115, 130, 150
PSI Bar kPa MPa
150 10 1000 1.0


  • 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
  • Flinger rings mounted on impeller shaft
  • Adjustable BFG packing standard (spring-loaded mechanical seal available)


CSD / CSUD Series

Dimensional Drawings

Data Sheet


Performance Curves

Performance Sheets

Service Parts Lists

Spec Sheets

Preferred Specifications


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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