Non-clogging self-priming sewage pump
SP-4(1550)
SP (self-priming sewage) · 50 Hz
SP-4(1550) is a non-clogging self-priming sewage pump from the CNP SP (self-priming sewage) range (50 Hz). Rated 15 kW, 48–144 m³/h, head 13–21 m. Net weight 275 kg.
- Flow 10–750 m³/h, head 3–38 m, motors 1.1–90 kW
- Solids up to 38 mm (SP-2), 63 mm (SP-3), 76 mm (SP-4 to SP-10)
- Rapid self-priming with a flap valve; maximum suction head printed per speed
Performance curve Curve-based
Efficiency, shaft power and NPSHr are not published for this model in the source catalogue.
Head versus flow at 50 Hz, 1550 rpm, clean water. Source: Performance and operating tables, printed p. 11; dimensions pp. 20–26.
| Flow (m³/h) | Head (m) |
|---|---|
| 48 | 20.9 |
| 64 | 19.8 |
| 80 | 18.3 |
| 96 | 16.9 |
| 112 | 15.4 |
| 128 | 13.8 |
| 144 | 12.6 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| DN | flange bore | 100 mm |
| D | flange outer diameter | 228.6 mm |
| D1 | bolt circle | 180 mm |
| D2 | raised face | 158 mm |
| n | flange bolt holes | 8 |
| d1 | flange bolt-hole diameter | 19 mm |
| H2 | H2 | 495.3 mm |
| A | A | 428 mm |
| A1 | A1 | 373 mm |
| B | B | 279.4 mm |
| B1 | B1 | 110 mm |
| L2 | L2 | 326 mm |
| d2 | foot bolt-hole diameter | 18 mm |
| H3 | H3 | 222.2 mm |
| L3 | L3 | 127 mm |
| d | shaft diameter | 38 mm |
| H | overall height, bare pump | 760 mm |
| Am | Am | 429 mm |
| H4 | H4 | 735 mm |
| L | overall length, bare pump | 813.5 mm |
| L4 | L4 | 318 mm |
| E1 | E1 | 13 mm |
| E2 | E2 | 50 mm |
| belt_Ad | Belt-driven set — Ad | 436 mm |
| belt_Ld1 | Belt-driven set — Ld1 | 100 mm |
| belt_Ld2 | Belt-driven set — Ld2 | 876 mm |
| belt_d | Belt-driven set — d | 20 mm |
| belt_H11 | Belt-driven set — H11 | 635.3 mm |
| belt_H31 | Belt-driven set — H31 | 362.2 mm |
| belt_H41 | Belt-driven set — H41 | 875 mm |
| belt_L | Belt-driven set — L | 567 mm |
| belt_Ld | Belt-driven set — Ld | 1076 mm |
| belt_K | Belt-driven set — K | 855 mm |
| belt_Hm | Belt-driven set — Hm | 900 mm |
| belt_Am | Belt-driven set — Am | 491 mm |
| belt_HD | Belt-driven set — HD | 565 mm |
| belt_E | Belt-driven set — E | 72.2 mm |
| — | Net weight | 275 kg |