Tuthill ½” SP100 Air Operated Double Diaphragm Pump

Published on January 12, 2017

  • Low pulsation, high efficiency air operated pump
  • Patented no-stall air motor
  • Fluid Cap and Diaphragm Design combine for a 20% increase in efficiency
  • Up to 17.5 gallons per minute
  • Threaded ring construction provides uniform 360 degree seal
  • Parts count is less than 40; reduces maintenance time by up to 50%
  • Extremely low pulsation

Visit www.sotera.com for more information, including a Chemical Compatibility Guide, and Product Configurator.



Tuthill Transfer Systems makes products that have long stood as the industry standard for the fast and safe transfer of a wide range of fuels and chemicals. 

Tuthill offers a broad range of products consisting of AC and DC Fuel Transfer Pumps, Hand Pumps, Flow Meters, Precision Weights and Measures Meters, Diesel Exhaust Fluid (DEF) Systems, Bio-Diesel Transfer Systems, Diaphragm Pumps, Fuel Cabinet Dispensers and a full line of accessories.

Manufactured in the U.S. from durable, long lasting materials such as cast iron, aluminum, stainless steel and engineered polypropylene, Tuthill products are designed to continually perform, time and time again, even in the most difficult of installations and applications.

Tuthill is celebrating 50 years of manufacturing a comprehensive product line of chemical and fuel transfer products well suited for any dispensing and metering application.  Fill-Rite and Sotera products are recognized internationally as the most dependable, durable, and rugged products available. 

When you combine the highest quality products with top-notch customer care, you get outstanding value - the value of Tuthill Transfer Systems.