Over 40 Years Experience Solving Difficult Pumping Problems!

Warren Rupp is committed to providing our
customers with sound technical knowledge
on equipment use, sizing, selection and
application. Our hallmark commitment for
over 40 years has been to help customers
make better-informed choices on pumping

Warren Rupp proudly off ers the most
diff erentiated range of AODD pump designs
in the industry. Th ere is no other pump type
on the market today that is so universally
applicable and so responsive to pumping
problem fluids.

Our on-going commitment to excellence is clearly demonstrated by our “Certifi cates of Excellence

and Compliance” to ISO 9001, ISO 14001, ATEX, CSA, UL and CE, some of the most prestigious
standards worldwide.

For the latest
Product Catalogs and
Technical Literature

For more information, Kindly visit Warren Rupp web site



The name SANDPIPER originated during the development of the first Air Operated Double Diaphragm (AODD) pump by Warren Rupp.  AODD pumps were designed to handle solids of any appreciable size.  To accelerate wear during the development of the pump, a slurry of very abrasive silica sand was continuously cycled through the pump.  The sand slurry often wore through the piping before the pump failed.  Since the sand was pumped through a pipe, Warren E. Rupp, the company founder, named the pump the SANDPIPER.

The SANDPIPER brand now includes:

  • Heavy Duty Ball
  • Heavy Duty Flap
  • Containment Duty (metallic and non-metallic)
  • Standard Duty Ball (metallic and non-metallic)
  • High Pressure Duty
  • Special Duty – UL pumps, filter press, USDA, mine construction, natural gas-operated, dewatering and wastewater

Metallic Materials:  Aluminum, Cast Iron, Stainless Steel and Alloy C

Non-Metallic Materials:  Polypropylene, PVDF, Nylon and Conductive Acetal

Certifications:  ATEX, CSA, UL, CE, USDA, FDA