Series description


Single stage inline, flanged, long coupled, mechanical sealed dry rotor pump


Hot water heating systems, chilled water air conditioning systems, closed cooling circuits, industrial circulation systems

Type key

 IL 40/160‐4/2
IPLInline pump
40Nominal width in DN
160Nominal impeller diameter
4Rated motor power P2 in kW
2Pole pair number

Special features/product advantages

  • Integral suction diffuser cast in volute inlet (larger models only)
  • Pump flanges 125 # raised face ANSI std (250 # ANSI optional)
  • Cataphoretic coating for corrosion protection
  • Impeller trims for specific applications
  • Pump feet drilled and tapped for ease of installation
  • All bolts "non‐metric"
  • Motor stool includes extra tappings for removal from volute ("back‐out screws")
  • Couplings include spacers and does not require dial indicators for alignment

Technical data

  • Temperature range: ‐5 °F to + 285 °F (‐20 °C to +140 °C)
  • Power supply (smaller horsepower): 1~115/208‐230 volt, 60 Hz
  • Power supply (larger horsepower): 3~208‐230/460, 575 volt, 60 Hz
  • Motor options: ODP, TEFC, Premium and "Super E" efficiency types, 2 and 4 pole available (3,450 and 1,750 RPM
  • Flange connection: 1 ½" to 4" NPT with ¼" pressure gage tappings
  • Maximum operating pressure 250 PSI (16 bar), minimum inlet pressure NPSHreq dependant (see detailed curves)


  • Inline bronze fitted (std) or optional all iron pump
  • Coupled to motor via split coupling
  • Standard NEMA frame Baldor motor


  • Pump volute: cast iron
  • Impeller: bronze (cast iron optional)
  • Shaft: 316L stainless steel
  • Mechanical seal: Q1Q1X4GG (silicium carbide seal faces, HNBR elastomers); other mechanical seals on request

Scope of delivery

  • Pump and motor (optionally pump end only)
  • Installation and operating instructions



Number of pages 20

PDF (1 MB)


PDF: Wilo-CronoLine-IL


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