Sandpiper pump is a brand under the Warren Rupp pump group. Since their launch in 1968, they have been establishing a reputation as the pioneer and global leader in the design and manufacture of the original air-operated double diaphragm (AODD) pumps. In fact, the Sandpiper S20 pump non-metallic edition and Sandpiper S30 metallic pump are among the top-selling acid pumps and fuel transfer pumps in the market. Their wide range of pumps is present in many industries from Petrochemical to mining and even hygienic sectors like food and chemical.

All Pumps is an authorized Sandpiper pump distributor. This award-winning brand boasts its Signature Series of air-operated double diaphragm pumps including Standard Duty, Containment Duty, Heavy Duty Ball and Heavy Duty Flap Valve pumps, Special Duty and Natural Gas Pumps. They also have their own pump accessories to upgrade their pump’s functionality such as Surge Dampeners, Filter Regulators and Level Controls.


Made in the USA, Sandpiper pumps are engineered with the toughest and innovative materials such as aluminium, cast iron, stainless steel, Hastelloy equivalent, Polypropylene and conductive Polypropylene, PVDF and conductive PVDF, nylon and conductive acetal; all of which are carefully picked to ensure pump reliability, efficient performance, and long operating life. Their AODD pumps come in a variety of sizes, types and models to meet all of the unique requirements of different applications.

Principle of Operation

Sandpiper Pump is an innovator of highly versatile Air Operated Double Diaphragm Pumps. They belong to the positive displacement pump family and are among the most used PD pumps in different industries.

An AODD pump uses compressed air as its power source. The design of this pump features two flexible diaphragms, each positioned in opposite chambers. Both chambers have common inlet and outlet ports. A shaft in between the diaphragms acts as their driving mechanism. Finally, valves or balls are placed on the openings of the chamber, acting as gates on the suction and discharge sides.

First, compressed air enters the pump and pushes the link shaft to the right and to the left. This allows the diaphragms to move simultaneously where one is in its discharge stroke while the other is in its suction stroke.

As simple as this back-and-forth movement, Sandpiper AODD pumps are able to move fluid within a system.


Sandpiper Product Catalogue

Leading Specialist Pump Supplier to Industry Since 1972




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