Industry Leading Customer Service
Unmatched Reliability
Simplicity In Design
Accurate and Reliable Composite Sampling
Largest Selection of Control Options
Diverse Model Line

Sonford Samplers are pneumatically driven, flow-through, dipper-type refrigerated composite samplers for process water, industrial waste and municipal raw sewage and effluent. The unique Sonford Sampling method simulates the technique of grab sampling for superior solids handling. Sonford Samplers are permanent installations for continuous composite sampling and will free your personnel for other duties. With all stainless steel construction and the most advanced and user friendly Touch Screen Control Panel, Sonford Samplers provide the most reliable, representative and accurate solution for any sampling need. Sonford Samplers can be found taking composite flow, time, and "on-demand" samples in wastewater treatment facilities and industrial applications of all sizes and environments.

Sonford Samplers automatically collect and refrigerate composite samples by a pneumatic cylinder and open cup to maintain accuracy and reliability. The sampling arm and cup are located above the sample stream and the cup enters the sampling stream only during the sampling event. The system requires little maintenance and plant personnel will not spend time clearing clogged sample tubing or replacing worn tubing from a peristaltic pump.

The main advantage of a Sonford Sampler is simplicity. The sampling device is a 30 mL open cup which is large enough to permit sampling all sizes of suspended solids normally found in wastewater flows. The solids in the waste stream do not plug sample tubing and are not dewatered by a peristaltic or diaphragm pump. Since the entire sample is removed when the cup is overturned, solids will not remain in the cup or plug the mechanism. Sample size is consistent regardless of the solids content. As a result, the sample is a precise, true representation of the actual flow.

One of the key features of a Sonford Sampler is the unique design of the flow-through reservoir. The flow-through reservoir is engineered for constant turbulence in the sampling area, ensuring that no settling of suspended solids occurs. The result is a true representation of the actual flow. The reservoir and all other wetted components before the drain are constructed of stainless steel for longevity and easy cleaning.

For durability, no sampler can match a Sonford Sampler. In the corrosive environment of water treatment facility, simplicity in design leads to a longer service life. With no gears, belts, motors or bearings, our pneumatic sampling arm outlasts any other system. The only moving part on a Sonford Sampler is the fully sealed arm that extends from the pneumatic cylinder. Further adding to the durability of a Sonford Sampler is the stainless steel construction of the sampling apparatus, cabinet and all wetted surfaces.

Sonford Samplers were originally developed for the Minneapolis-St. Paul Sanitary District Wastewater Treatment Plant and have been used successfully in many other wastewater plants and industrial applications. Wastewater and industrial plants of all sizes throughout the United States use Sonford Samplers including Fortune 500 companies.

Follow the links to the left to learn more about the unique models we offer.