Corrosion resistant fiberglass reinforced polypropylene pumps will stand up to the most aggressive, demanding industrial applications. Applications requiring flow rates from 5 to 140 GPM with maximum total dynamic head discharges up to 141 feet will find an R-Series pump to meet their requirements. And because the process media never contacts metal there is never a danger of pump failure due to rust or corrosion. The pumps magnetic drive coupling consists of two heavy-duty magnet assemblies. This frictionless drive is extremely energy efficient and consumes less power than other designs. For superior performance in larger size pumps, 2 HP and greater, rare earth neodymium magnets are used. These special magnets feature an exceptional magnetic force to weight ratio. The magnetic drive of the R-Series pumps require no seals. This means there are no emissions, no leaks and no expensive, time consuming seal replacements. All pumps have 50/60 cycle.