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Nelson Valves Outperform the Competition in ITRC Study

September 27, 2014

A 2013 study by the Irrigation Training and Research Center (ITRC) at Cal Poly University in San Luis Obispo, CA evaluated the performance of 22 pressure regulating control valves for use in low-pressure systems. The Nelson 4” 800 Series Pressure Reducing Valve was tested against competitive 3” and 4” valves. The Nelson Valve was the most accurate, most efficient and the best for low-pressure regulation. Click here for summary. 

· The Nelson 800 Series Valve was the only valve “able to maintain an outlet pressure within +/- 0.5 psi.”
· The Nelson 800 Series Valve has 1/2 to 1/10 the pressure loss of other valves.
· The Nelson 800 Series Valve uses the most advanced 3-way pilot in the industry, which requires the lowest pressure differential to maintain a constant outlet pressure. Other valves that use two-way pilots can require a pressure differential of 20-30 psi.

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