Performance Parameters
| Model number | Moter | Flow(n≈2850r/min) | Pump length (mm) | Pump Weight(kg) | Outlet diameter | ||||||||
| KW | HP | m³/h | 0 | 1 | 2 | 3 | 5 | 6 | 6.6 | ||||
| 4SP5-02 | 0.37 | 0.5 | Head (m) | 14 | 12 | 11 | 10 | 8 | 6 | 4 | 193 | 1.6 | DN40 1-1/2″ |
| 4SP5-04 | 0.37 | 0.5 | 25 | 24 | 22 | 20 | 16 | 12 | 8 | 235 | 2.1 | ||
| 4SP5-06 | 0.55 | 0.75 | 38 | 36 | 33 | 30 | 24 | 18 | 13 | 277 | 2.5 | ||
| 4SP5-08 | 0.75 | 1 | 50 | 47 | 44 | 40 | 32 | 24 | 17 | 319 | 2.9 | ||
| 4SP5-12 | 1.1 | 1.5 | 76 | 72 | 67 | 60 | 48 | 36 | 25 | 403 | 3.8 | ||
| 4SP5-15 | 1.5 | 2 | 94 | 88 | 76 | 71 | 60 | 45 | 32 | 466 | 4.5 | ||
| 4SP5-17 | 1.5 | 2 | 107 | 99 | 91 | 86 | 68 | 51 | 36 | 508 | 5.0 | ||
| 4SP5-22 | 2.2 | 3 | 139 | 130 | 122 | 110 | 88 | 66 | 46 | 613 | 6.0 | ||
| 4SP5-25 | 2.2 | 3 | 159 | 145 | 137 | 125 | 100 | 75 | 53 | 676 | 6.7 | ||
| 4SP5-33 | 3 | 4 | 208 | 192 | 182 | 165 | 132 | 99 | 69 | 876 | 8.5 | ||
| 4SP5-38 | 4 | 5.5 | 239 | 220 | 209 | 190 | 152 | 114 | 80 | 981 | 9.6 | ||
| 4SP5-40 | 4 | 5.5 | 252 | 241 | 223 | 200 | 160 | 120 | 84 | 1023 | 10.1 | ||
| 4SP5-44 | 4 | 5.5 | 275 | 259 | 242 | 220 | 176 | 132 | 92 | 1107 | 11 | ||
| 4SP5-48 | 5.5 | 7.5 | 300 | 282 | 266 | 240 | 192 | 144 | 100 | 1191 | 11.9 | ||
| 4SP5-52 | 5.5 | 7.5 | 326 | 302 | 287 | 260 | 208 | 156 | 109 | 1275 | 12.8 | ||
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
Why Choose the 4SP5 fountain pump?
Vertical reach and pressure
Provides sufficient pressure for multi-story residential buildings or community water features.
Efficient operation range
Operates at a flow and pressure range that avoids motor overwork, extending service life.
Compatible with 1.25″ / 1.5″ piping
Hydraulic output matches standard commercial pipe diameters, reducing friction loss and system noise.
Engineering Specs: NEMA Standard and Material Options
The 4SP5 is manufactured to meet international export standards. Its modular design ensures compatibility with global electrical and control systems.
The following specifications define the pump’s motor interface, cooling configurations, and material options.
Electric motor
Designed for stable, low-vibration operation.
NEMA standard interface
The pump end is compatible with NEMA standard motors, including Variable Frequency Drives (VFD).
Dual cooling options
Water-filled motor for zero contamination. Oil-filled motor for heat dissipation during rapid start-stop cycles.
Corrosion resistance
AISI 304 for standard landscapes. AISI 316 for chlorinated pools or mineral-heavy deep wells.
4sp5 fountain pump Applications
Manufacturing and Testing
Dynamic balance testing
Each impeller is balanced to reduce vibration and protect motor bearings.
Full curve verification
Head vs. flow performance is measured against the datasheet specifications.
Insulation dielectric test
Confirms that the NEMA motor meets international safety standards for underwater use.
