Performance Parameters
| Model number | Moter | Flow(n≈2850r/min) | Pump length(mm) | Pump weight (kg) | Outlet diameter | ||||||||
| KW | HP | m³/h | 0 | 1.2 | 2 | 3 | 3.6 | 4 | 4.8 | ||||
| 4SP3-03 | 0.37 | 0.5 | Head (m) | 19 | 16 | 15 | 13 | 11 | 10 | 7 | 214 | 1.8 | DN32/DN40 1-1/4″ 1-1/2″ |
| 4SP3-06 | 0.37 | 0.5 | 38 | 33 | 30 | 26 | 21 | 19 | 13 | 277 | 2.5 | ||
| 4SP3-09 | 0.55 | 0.75 | 57 | 50 | 45 | 38 | 31 | 28 | 19 | 340 | 3.1 | ||
| 4SP3-12 | 0.75 | 1 | 76 | 68 | 60 | 51 | 42 | 37 | 26 | 403 | 3.8 | ||
| 4SP3-15 | 1.1 | 1.5 | 95 | 82 | 74 | 64 | 53 | 46 | 32 | 466 | 4.5 | ||
| 4SP3-18 | 1.1 | 1.5 | 113 | 98 | 89 | 77 | 63 | 56 | 39 | 529 | 5.1 | ||
| 4SP3-22 | 1.5 | 2 | 139 | 122 | 109 | 94 | 78 | 68 | 47 | 613 | 6.0 | ||
| 4SP3-25 | 1.5 | 2 | 158 | 140 | 124 | 107 | 90 | 78 | 54 | 676 | 6.6 | ||
| 4SP3-29 | 2.2 | 3 | 173 | 160 | 144 | 124 | 104 | 90 | 62 | 760 | 7.5 | ||
| 4SP3-32 | 2.2 | 3 | 202 | 175 | 158 | 137 | 114 | 99 | 68 | 823 | 8.1 | ||
| 4SP3-35 | 3 | 4 | 220 | 191 | 173 | 150 | 126 | 109 | 74 | 918 | 8.8 | ||
| 4SP3-39 | 3 | 4 | 246 | 213 | 193 | 167 | 139 | 121 | 83 | 1002 | 9.7 | ||
| 4SP3-44 | 3 | 4 | 277 | 242 | 218 | 188 | 154 | 136 | 94 | 1107 | 10.8 | ||
| 4SP3-48 | 4 | 5.5 | 302 | 262 | 238 | 205 | 172 | 149 | 102 | 1191 | 11.7 | ||
| 4SP3-52 | 4 | 5.5 | 328 | 282 | 257 | 222 | 189 | 161 | 111 | 1275 | 12.6 | ||
Conditions of Use
| Parameter | Value |
| Water temperature | ≤ 35°C |
| pH value of water source | 6.5 – 8.0 |
| Solid content (weight ratio) | ≤ 0.01% |
| Maximum particle diameter | ≤ 0.2 mm |
| Maximum diving depth | ≤ 150 m |
Q-P and Q-H Curves
Key Features & Technical Advantages
NEMA-standard motor
The pump motor fits NEMA specs, easy to install, well-insulated, and handles frequent start-stops in fountain displays without trouble.
High-efficiency hydraulic design
Multi-stage centrifugal structure gives you high head, so you get a steady water column even from deep water.
Material options (SS304 / SS316)
SS304 (standard): Great for fresh water fountains. Mirror-polished and corrosion-resistant.
SS316 (optional): Use it for chlorinated pools or mildly corrosive water. It lasts decades.
Sand-resistant structure
Reinforced floating impellers handle minor sediment, reducing wear and maintenance.
Why choose the 4sp3 fountain pump instead of a larger model?
Optimized for high head
The 4SP14 is designed for high flow in large pools. The 4sp3 is designed for high head in deep or tall water columns. It handles back-pressure reliably.
Efficient at low flow rates
Using a high-flow pump on a small water feature wastes electricity and reduces pump life. The fountain pump reaches peak efficiency at 2 m³/h, which lowers operating costs.
NEMA standard motor included
Every stainless steel pump comes with a NEMA standard motor. This ensures that under frequent start-stop cycles in fountain applications, the motor insulation remains stable and undamaged.
Ideal Application Scenarios
Private estates
Tiered waterfalls and statues that need a smooth, steady flow.
Deep-well residential supply
Pulls reliable drinking water from boreholes too deep for standard pumps.
Eco-friendly landscapes
Great for solar setups, thanks to low-amp, high-efficiency startup.
