ShinMaywa Norus Water Feature Pumps
Maintain the beauty and flawless functionality of your backyard water feature with a reliable, energy efficient motor. Our selection of ShinMaywa Norus Series Submersible Pumps is engineered specifically for the demanding requirements of continuous duty ponds, streams, and waterfalls. Celebrated throughout the water garden industry for their unmatched durability, low noise operation, and low lifetime operating costs, these premium pumps provide the heavy water flow your feature needs to thrive. Explore our available sizes and horsepower ratings to find the perfect match for your skimmer box or filtration setup.
Why ShinMaywa Norus Pumps Are the Premier Choice for Waterfalls
When operating a large backyard stream or waterfall, you need an outdoor submersible pump that can run constantly without driving up your monthly utility bill or risking motor burnout. The ShinMaywa Norus series is uniquely constructed to balance high volume water distribution with industrial grade durability, outperforming standard pond pumps in both efficiency and longevity.
Advanced Materials and Engineering
Corrosion Resistant Housing: Each Norus pump features a sleek, robust exterior crafted from high grade 304 stainless steel and poly amide fiber reinforced resin, protecting the internal motor assembly from harsh outdoor elements and water treatments.
Superior Heat Dissipation: Built with a cast aluminum bearing housing and a vibration reducing bearing configuration, these pumps dissipate heat rapidly to extend the overall operational lifespan of the unit.
Non Clog Vortex Impeller: The innovative vortex impeller layout allows stringy or fibrous organic matter and spherical solids up to 1-1/4 inches to pass easily through the pump housing without clogging or stopping water flow.
Quick Series Comparison Chart
Use this reference table to compare horsepower, maximum water flow capacity, and power cord lengths across the standard Norus model lineup:
| Pump Model | Horsepower | Maximum Flow Rate | Max Head Lift | Cord Length |
| 50CR2.15S | 1/5 HP | 3,300 GPH | 19 Feet | 20 Feet |
| 50CR2.25S | 1/3 HP | 4,800 GPH | 28 Feet | 32 Feet |
| 50CR2.4S | 1/2 HP | 5,700 GPH | 36 Feet | 32 Feet |
| 50CR2.75S | 1 HP | 7,000 GPH | 48 Feet | 32 Feet |
| 50CRXP2.75S | 1 HP (High Flow) | 10,200 GPH | 26 Feet | 32 Feet |
Frequently Asked Questions
Are ShinMaywa pumps safe for koi and pond fish?
Yes, all ShinMaywa Norus pumps are designed with an oilless motor layout and feature premium mechanical shaft seals. This eliminates any risk of oil leaking into your water column, ensuring a completely safe and non toxic environment for your koi, pond fish, and delicate aquatic vegetation.
Can these pumps be installed horizontally?
ShinMaywa Norus water feature pumps are engineered to operate sitting vertically on their stable base and must remain fully submerged at all times. Operating the pump horizontally or at odd angles can disrupt internal heat distribution and lead to uneven wear on the bearings, which may shorten the lifetime of the motor.
What is the difference between the standard 50CR models and the CRXP high flow model?
Standard 50CR models are built to maximize head pressure, making them excellent for pushing water up higher elevations or taller waterfall vertical climbs. The CRXP model is specialized for high volume, low head applications, meaning it delivers a massive volume of water for wide, roaring waterfalls but has a lower maximum height limit of 26 feet.
