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Non-clogging self-priming sewage pump

SP (self-priming sewage)

Variable-speed non-clogging self-priming sewage pumps, 2–10 inch

Back-pull-out self-priming sewage pumps with a semi-open non-clogging impeller, built for municipal and industrial sewage, drainage and construction-site dewatering. Each size is offered at many speeds: starred speeds couple directly to a standard YE2 motor, others use a triangle-belt drive. The pump sits beside the sump with only the suction pipe in the liquid; fill it with water for the first start.

  • 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
  • Liquid 0–40 °C, pH 5–9, density up to 1.2 kg/dm³
SP (self-priming sewage)CNP-S-000027
Flow
10–750 m³/h
Head
up to 38 m
Power
0.75–90 kW
Mains
50 Hz
Models
65
Liquid temp.
0 to 40 °C liquid; ambient up to 40 °C

Sizes

SizeDescriptionRated flowFlow rangeMax pressureMotorConnectionModels
SP-2 Non-clogging self-priming sewage pump, 50 (2") inlet and outlet, 7 speeds 28 m³/h 10–45 m³/h — 1.1–9.2 kW Flange DN50, PN0.6MPa / Class 150 lb 7
SP-3 Non-clogging self-priming sewage pump, 80 (3") inlet and outlet, 16 speeds 53.8 m³/h 10–100 m³/h — 0.75–18.5 kW Flange DN80, PN0.6MPa / Class 150 lb 16
SP-4 Non-clogging self-priming sewage pump, 100 (4") inlet and outlet, 14 speeds 82.5 m³/h 20–160 m³/h — 1.5–30 kW Flange DN100, PN1.0MPa / Class 150 lb 14
SP-6 Non-clogging self-priming sewage pump, 150 (6") inlet and outlet, 10 speeds 190 m³/h 50–300 m³/h — 3–37 kW Flange DN150, PN1.0MPa / Class 150 lb 10
SP-8 Non-clogging self-priming sewage pump, 200 (8") inlet and outlet, 9 speeds 320 m³/h 100–580 m³/h — 7.5–75 kW Flange DN200, PN1.0MPa / Class 150 lb 9
SP-10 Non-clogging self-priming sewage pump, 250 (10") inlet and outlet, 9 speeds 450 m³/h 200–750 m³/h — 11–90 kW Flange DN250, PN1.6MPa/ Class 150 lb 9

Models

Filter by duty point, mains frequency or size. Click a model for its performance curve and data.

Model table (PDF)
ModelSizeStagesHzMotor kWFlow m³/hHead mrpmkg
SP-2(1150) SP-2—50 1.1 10–20 3.5–5.1 115099 CurvePDF
SP-2(1450) SP-2—50 1.5 10–25 5.8–8.4 145099 CurvePDF
SP-2(1750) SP-2—50 3 10–30 8.5–12.6 175099 CurvePDF
SP-2(2050) SP-2—50 4 10–35 11.6–17.9 205099 CurvePDF
SP-2(2350) SP-2—50 7.5 12.5–40 15.3–23.2 235099 CurvePDF
SP-2(2650) SP-2—50 7.5 12.5–45 19.4–30.1 265099 CurvePDF
SP-2(2900) SP-2—50 9.2 15–45 25.3–35.6 290099 CurvePDF
SP-3(650) SP-3—50 0.75 10–30 2–2.9 650190 CurvePDF
SP-3(750) SP-3—50 1.5 10–40 2.3–3.9 750190 CurvePDF
SP-3(850) SP-3—50 1.5 10–40 3.4–5.2 850190 CurvePDF
SP-3(950) SP-3—50 1.5 10–50 3.8–6.4 950190 CurvePDF
SP-3(1050) SP-3—50 3 10–60 4.3–7.9 1050190 CurvePDF
SP-3(1150) SP-3—50 4 10–60 5.6–9.7 1150190 CurvePDF
SP-3(1250) SP-3—50 4 10–70 6.2–11.3 1250190 CurvePDF
SP-3(1350) SP-3—50 5.5 20–70 7.7–12.6 1350190 CurvePDF
SP-3(1450) SP-3—50 5.5 20–80 8.3–14.7 1450190 CurvePDF
SP-3(1550) SP-3—50 7.5 20–90 9.1–16.8 1550190 CurvePDF
SP-3(1650) SP-3—50 11 20–90 11.1–19.3 1650190 CurvePDF
SP-3(1750) SP-3—50 11 30–100 11.8–20.9 1750190 CurvePDF
SP-3(1850) SP-3—50 15 30–100 14–23.5 1850190 CurvePDF
SP-3(1950) SP-3—50 15 30–100 16.4–26.2 1950190 CurvePDF
SP-3(2050) SP-3—50 18.5 30–100 18.9–29 2050190 CurvePDF
SP-3(2150) SP-3—50 18.5 30–100 21.7–32.1 2150190 CurvePDF
SP-4(650) SP-4—50 1.5 20–48 2.6–3.8 650275 CurvePDF
SP-4(750) SP-4—50 1.5 32–64 3–4.5 750275 CurvePDF
SP-4(850) SP-4—50 2.2 32–80 3.5–6 850275 CurvePDF
SP-4(950) SP-4—50 3 32–80 5–7.5 950275 CurvePDF
SP-4(1050) SP-4—50 5.5 32–96 5.9–9.7 1050275 CurvePDF
SP-4(1150) SP-4—50 5.5 32–96 7.6–11.9 1150275 CurvePDF
SP-4(1250) SP-4—50 7.5 32–112 8.4–14.2 1250275 CurvePDF
SP-4(1350) SP-4—50 11 32–112 10.5–16.7 1350275 CurvePDF
SP-4(1450) SP-4—50 11 48–128 11.5–18 1450275 CurvePDF
SP-4(1550) SP-4—50 15 48–144 12.6–20.9 1550275 CurvePDF
SP-4(1650) SP-4—50 18.5 48–144 15–24.3 1650275 CurvePDF
SP-4(1750) SP-4—50 22 48–160 16.2–27.6 1750275 CurvePDF
SP-4(1850) SP-4—50 30 48–160 18.7–31 1850275 CurvePDF
SP-4(1950) SP-4—50 30 48–160 21.7–34.5 1950275 CurvePDF
SP-6(650) SP-6—50 3 50–120 3.1–5 650438 CurvePDF
SP-6(750) SP-6—50 4 80–150 3.6–6 750438 CurvePDF
SP-6(850) SP-6—50 7.5 80–150 5.5–8 850438 CurvePDF
SP-6(950) SP-6—50 7.5 80–180 6.8–11 950438 CurvePDF
SP-6(1050) SP-6—50 11 80–210 7.5–13 1050438 CurvePDF
SP-6(1150) SP-6—50 15 80–240 8–16 1150438 CurvePDF
SP-6(1250) SP-6—50 22 120–240 10.5–17 1250438 CurvePDF
SP-6(1350) SP-6—50 30 120–270 12–20.5 1350438 CurvePDF
SP-6(1450) SP-6—50 30 120–300 13–24 1450438 CurvePDF
SP-6(1550) SP-6—50 37 120–300 16.5–28 1550438 CurvePDF
SP-8(650) SP-8—50 7.5 100–250 5–7 650655 CurvePDF
SP-8(750) SP-8—50 11 150–300 6.5–8.8 750655 CurvePDF
SP-8(850) SP-8—50 15 150–350 8–11.5 850655 CurvePDF
SP-8(950) SP-8—50 22 150–350 11–15 950655 CurvePDF
SP-8(1050) SP-8—50 30 150–400 13–18.5 1050655 CurvePDF
SP-8(1150) SP-8—50 37 200–450 15.5–21.5 1150655 CurvePDF
SP-8(1250) SP-8—50 55 200–500 18–25.5 1250655 CurvePDF
SP-8(1350) SP-8—50 75 200–500 22–30.5 1350655 CurvePDF
SP-8(1450) SP-8—50 75 200–580 23–35.5 1450655 CurvePDF
SP-10(650) SP-10—50 11 200–300 6.5–7 650705 CurvePDF
SP-10(750) SP-10—50 15 200–400 6–10 750705 CurvePDF
SP-10(850) SP-10—50 22 200–450 8–13 850705 CurvePDF
SP-10(950) SP-10—50 30 200–500 10–16 950705 CurvePDF
SP-10(1050) SP-10—50 45 200–550 12.5–20 1050705 CurvePDF
SP-10(1150) SP-10—50 55 300–600 15–23 1150705 CurvePDF
SP-10(1250) SP-10—50 75 300–650 18–27.5 1250705 CurvePDF
SP-10(1350) SP-10—50 90 300–700 21.5–32.5 1350705 CurvePDF
SP-10(1450) SP-10—50 90 300–750 24.5–38 1450705 CurvePDF

Performance range

Every model of the SP (self-priming sewage) range on one chart: each line is the performance curve of one model. Click a line or dot to open that model with its full data.

Logarithmic scales. Published catalogue data for clean water; the correct model for your duty is confirmed by our engineers.

Dimensions & weight

Net weight and the main dimensions of each model, in millimetres, from the catalogue. Open a model for the labelled dimension drawing.

ModelHzWeight (kg)DNDD1D2nd1H2
SP-2(1150)50995014011090414318
SP-2(1450)50995014011090414318
SP-2(1750)50995014011090414318
SP-2(2050)50995014011090414318
SP-2(2350)50995014011090414318
SP-2(2650)50995014011090414318
SP-2(2900)50995014011090414318
SP-3(650)5019080190150127419432
SP-3(750)5019080190150127419432
SP-3(850)5019080190150127419432
SP-3(950)5019080190150127419432
SP-3(1050)5019080190150127419432
SP-3(1150)5019080190150127419432
SP-3(1250)5019080190150127419432
SP-3(1350)5019080190150127419432
SP-3(1450)5019080190150127419432
SP-3(1550)5019080190150127419432
SP-3(1650)5019080190150127419432
SP-3(1750)5019080190150127419432
SP-3(1850)5019080190150127419432
SP-3(1950)5019080190150127419432
SP-3(2050)5019080190150127419432
SP-3(2150)5019080190150127419432
SP-4(650)50275100229180158819495
SP-4(750)50275100229180158819495
SP-4(850)50275100229180158819495
SP-4(950)50275100229180158819495
SP-4(1050)50275100229180158819495
SP-4(1150)50275100229180158819495
SP-4(1250)50275100229180158819495
SP-4(1350)50275100229180158819495
SP-4(1450)50275100229180158819495
SP-4(1550)50275100229180158819495
SP-4(1650)50275100229180158819495
SP-4(1750)50275100229180158819495
SP-4(1850)50275100229180158819495
SP-4(1950)50275100229180158819495
SP-6(650)50438150285240212823574
SP-6(750)50438150285240212823574
SP-6(850)50438150285240212823574
SP-6(950)50438150285240212823574
SP-6(1050)50438150285240212823574
SP-6(1150)50438150285240212823574
SP-6(1250)50438150285240212823574
SP-6(1350)50438150285240212823574
SP-6(1450)50438150285240212823574
SP-6(1550)50438150285240212823574
SP-8(650)50655200340295266823724
SP-8(750)50655200340295266823724
SP-8(850)50655200340295266823724
SP-8(950)50655200340295266823724
SP-8(1050)50655200340295266823724
SP-8(1150)50655200340295266823724
SP-8(1250)50655200340295266823724
SP-8(1350)50655200340295266823724
SP-8(1450)50655200340295266823724
SP-10(650)507052504053553201226640
SP-10(750)507052504053553201226640
SP-10(850)507052504053553201226640
SP-10(950)507052504053553201226640
SP-10(1050)507052504053553201226640
SP-10(1150)507052504053553201226640
SP-10(1250)507052504053553201226640
SP-10(1350)507052504053553201226640
SP-10(1450)507052504053553201226640

Spare parts for SP (self-priming sewage)

Parts list of the series with the material of each part. To order, send the model code and the part you need.

No.PartMaterialStandardApplies to
1Suction inletCast iron— All sizes
2Flap valveNBR + carbon steel— All sizes
3Infusion coverCast iron— All sizes
4Discharge outletCast iron— All sizes
5End coverCast iron— All sizes
6Wear plateCarbon steel— All sizes
7ImpellerDCI (ductile cast iron) or cast steel— All sizes
8VoluteCast iron— All sizes
9Impeller coverCast iron— All sizes
10Mechanical sealWC / WC— All sizes
11O-ringNBR / FPM— All sizes
12ShaftStainless steel— All sizes
13Bearing bodyCast iron— All sizes
14Bearing coverCast iron— All sizes
15Inlet cover (SP-10)Cast iron— All sizes
16Inlet (SP-10)Cast iron— All sizes

Technical data

Liquid temperature

  • 0 to 40 °C liquid; ambient up to 40 °C

Ambient conditions

  • Up to 40 °C, altitude up to 1000 m

Motor

  • Direct-coupled YE2 B3 standard motor or belt drive

Supply voltage

  • 3 x 380 V

Typical applications

  • Rain water and common sewage; municipal drainage, construction sites, civil-defence drainage
  • Industrial sewage: light industry, paper, textile, food, chemical, electric utility, mines
  • Sewage and deposit handling in water purification, tanning, slaughterhouse, fish breeding, wine and sugar industry
  • Not strongly corrosive but seriously polluted sewage

Pumped liquid

  • Non-flammable, non-explosive liquid at 0–40 °C, density up to 1.2 × 10³ kg/m³, pH 5–9, solids up to 2 % by volume; maximum grain SP-2 38 mm, SP-3 63 mm, SP-4/6/8/10 76 mm. Contact CNP if the specific gravity exceeds 1.2.

Data basis

  • Clean water at normal temperature, measured at sea level with the minimum suction head; variable speed (650–2900 rpm by size); speeds marked * suit a YE2 B3 standard motor, other speeds a triangle-belt drive

Performance values are taken from the published CNP catalogue data. Our engineers confirm the final selection for your liquid, temperature, supply and site before quoting.

Other sewage & drainage pumps

WQ(I)

Submersible sewage pump

  • Flow 8–2000 m³/h
  • Head up to 60 m
  • 0.55–150 kW

WQ-W(I)

Submersible sewage pump

  • Flow 9–300 m³/h
  • Head up to 32 m
  • 0.37–15 kW

Need a pump or a spare part?

Send us the flow and head you need, or the model code and nameplate details of the pump you are repairing. Our team replies with a quotation.