ShinMaywa Norus Submersible Pumps

ShinMaywa Norus Submersible Pumps For Waterfalls & Ponds ShinMaywa Norus Pumps are premium submersible pond pumps engineered for demanding water feature applications. Constructed from durable stainless steel and corrosion-resistant amide fiber-reinforced resin, these pumps are built for reliable continuous-duty operation. Their impressive high-head performance maintains water flow as backpressure increases, delivering more water to your waterfall, creating a fuller, wider display, and providing superior performance on longer plumbing runs. ShinMaywa offers a 2 year motor warranty on all their Norus motors, giving you peace of mind! Technical Specifications 3,300 GPH4,800 GPH5,700 GPH7,000 GPHDimensions8"L x 5.5"W x 15"H8"L x 5.5"W x 15"H8"L x 5.5"W x 15"H8"L x 5.5"W x 15"HMaximum Flow Rate3,300 GPH4,800 GPH5,700 GPH7,000 GPHMax Head Pressure19 Feet27 Feet37 Feet48 FeetOutlet Size2"2"2"2"Watts328 Watts414 Watts567 Watts1,088 WattsPower Cord Length20 Feet, 16 Gauge32 Feet, 16 Gauge32 Feet, 16 Gauge32 Feet, 16 GaugeHorsepower1/5 HP1/3 HP1/2 HP1 HPVoltage115V115V115V115V or 230VModel50CR2.15S50CR2.25S50CR2.45S50CR2.75S or 50CR2.75S-2Warranty2 Years2 Years2 Years2 Years   Performance Chart Flow in GPM & GPH at Various Feet of Head PressureModel5'10'15'20'25'30'35'40'Shut Off50CR2.15SGPM45301519'GPH2700180090050CR2.25SGPM665035201328'GPH400030002100120078050CR2.4SGPM85725745301836'GPH51004320342027001800108050CR2.75SGPM11510090806853382548'GPH69006000540048004080318022801500 Performance values shown are based on clean water under standard testing conditions. Actual flow rates may vary depending on plumbing layout, pipe diameter, fittings, and installation conditions. *Cells highlighted in blue represent the pump’s most efficient operating parameters. Understanding the Performance Chart The performance chart above shows how the ShinMaywa Norus pump performs under different operating conditions. It helps you estimate how much water the pump will deliver based on the amount of resistance (head pressure) in your plumbing system. What Is Head Pressure? Many customers assume that head pressure is simply the vertical distance the water in your system is pumped. In reality, it’s the combined resistance created by: Vertical lift Pipe length Pipe diameter Elbows and fittings Valves Filters or UV clarifiers Waterfall spillways or discharge restrictions Even a pump moving water only 8 feet upward may experience 20–30 feet of head pressure once plumbing losses are included. The greater the head pressure, the harder the pump must work. How to Use This Performance Chart Step 1: Estimate your system’s total head pressure. Step 2: Find your estimated total head pressure across the top of the chart. Step 3: Read down that column to compare each pump model’s flow rate in GPM (Gallons Per Minute) and GPH (Gallons Per Hour). Step 4: Choose the pump that provides the flow your waterfall or water feature requires at your operating head pressure. For example, if your system has approximately 20 feet of total head, the 50CR2.75S pump will deliver roughly 80 GPM (4,800 GPH), while the 50CR2.4S will produce approximately 45 GPM (2,700 GPH). Why It Matters As resistance increases, every pump delivers less water. Selecting the correct model ensures your waterfall or water feature receives the flow it needs without overspending on unnecessary horsepower or ending up with disappointing performance. How to Determine Head Pressure Step 1: Measure vertical head pressure by measuring the vertical distance in feet from the pumping water level to the highest point the water must reach. Step 2: Measure the distance of the pipe tube you’ll be using from the pump to the waterfall and divide by 10.  Step 3: Add the results from steps 1 and 2 to get your answer. Example: You are using 20 feet of pipe tubing and the vertical height from your pump to your waterfall outlet is 6 feet, this means your head pressure is 8 feet. (20/10) 6 = 8 Feet Head Pressure ShinMaywa Norus Submersible Pump Documents Dive deep into what makes the ShinMaywa Norus Submersible Pond Pump incredible. Their brochure highlights the high quality materials, direct drive motor and vortex impeller testing results. ShinMaywa Norus Brochure