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Non-clogging self-priming sewage pump

SP-4(1950)

SP (self-priming sewage) · 50 Hz

SP-4(1950) is a non-clogging self-priming sewage pump from the CNP SP (self-priming sewage) range (50 Hz). Rated 30 kW, 48–160 m³/h, head 22–35 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
Datasheet (PDF) Request a quotation

Performance curve Curve-based

01234051152Flow Q (m³/h)Head H (m)SP-4(1950): Q 48 m³/h, H 34.5 mSP-4(1950): Q 64 m³/h, H 33.4 mSP-4(1950): Q 8 m³/h, H 31.5 mSP-4(1950): Q 96 m³/h, H 29.4 mSP-4(1950): Q 112 m³/h, H 27.7 mSP-4(1950): Q 128 m³/h, H 25.7 mSP-4(1950): Q 144 m³/h, H 23.5 mSP-4(1950): Q 16 m³/h, H 21.7 m

Efficiency, shaft power and NPSHr are not published for this model in the source catalogue.

Head versus flow at 50 Hz, 1950 rpm, clean water. Source: Performance and operating tables, printed p. 11; dimensions pp. 20–26.

Flow (m³/h)Head (m)
4834.5
6433.4
8031.5
9629.4
11227.7
12825.7
14423.5
16021.7

Dimensions & weight

L = 813.5H = 760Net weight: 275 kg
Outline drawn in proportion to this model's catalogue dimensions (simplified, only the labelled dimensions are shown). Codes match the table; confirm against the approved CNP drawing before installation.
CodeDescriptionValue
DNflange bore100 mm
Dflange outer diameter228.6 mm
D1bolt circle180 mm
D2raised face158 mm
nflange bolt holes8
d1flange bolt-hole diameter19 mm
H2H2495.3 mm
AA428 mm
A1A1373 mm
BB279.4 mm
B1B1110 mm
L2L2326 mm
d2foot bolt-hole diameter18 mm
H3H3222.2 mm
L3L3127 mm
dshaft diameter38 mm
Hoverall height, bare pump760 mm
AmAm429 mm
H4H4735 mm
Loverall length, bare pump813.5 mm
L4L4318 mm
E1E113 mm
E2E250 mm
belt_AdBelt-driven set — Ad413 mm
belt_Ld1Belt-driven set — Ld1100 mm
belt_Ld2Belt-driven set — Ld2870 mm
belt_dBelt-driven set — d20 mm
belt_H11Belt-driven set — H11635.3 mm
belt_H31Belt-driven set — H31362.2 mm
belt_H41Belt-driven set — H41875 mm
belt_LBelt-driven set — L526 mm
belt_LdBelt-driven set — Ld1070 mm
belt_KBelt-driven set — K855 mm
belt_HmBelt-driven set — Hm900 mm
belt_AmBelt-driven set — Am468 mm
belt_HDBelt-driven set — HD655 mm
belt_EBelt-driven set — E32.2 mm
—Net weight275 kg

Other models in this size

SP-4(1850)30 kW · 19–31 mSP-4(1750)22 kW · 16–28 mSP-4(1650)18.5 kW · 15–24 mSP-4(1550)15 kW · 13–21 mSP-4(1450)11 kW · 12–18 mSP-4(1350)11 kW · 11–17 mSP-4(1250)7.5 kW · 8–14 mSP-4(1150)5.5 kW · 8–12 m

All SP (self-priming sewage) models →

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