Wilo Pumps - CronoLine IL Series

wilo-pump-2014-cronoline-ILWilo Pumps Design

Glanded wilo pumps in in-line design with flange connection

 

Application in the water Of Wilo Pumps

 

For pumping heating water (in accordance with VDI 2035), water-glycol mixtures and cooling and cold water without abrasive substances in heating, cold water and cooling water systems

 

Type key of Wilo Pumps

 

Example
IL 40/160-4/2
IL In-line pump
40 Nominal diameter DN of the pipe connection
160 Nominal impeller diameter
4 Rated motor power P2 in kW
2 Number of poles

 

Special features/product advantages Of Wilo Pumps

 

  • Reduced life cycle costs thanks to optimized efficiency
  • Standard condensate drainage holes in the motor housings
  • Can be used flexibly in air-conditioning
  • and cooling systems, with application benefits due to direct draining of condensate via optimised lantern design (patented)
  • High standard of corrosion protection thanks to cataphoretic coating
  • High worldwide availability of standard motors (according to Wilo specifications) and standard mechanical seals

 

Technical data

 

  • Minimum Efficiency Index (MEI) to ≥ 0.4
  • Permissible temperature range -20 °C to +140 °C
  • Mains connection 3~400 V, 50 Hz (others on request)
  • Protection class IP 55
  • Nominal diameter DN 32 to DN 250
  • Max. operating pressure 16 bar (25 bar on request)

 

Description/design Of Wilo Pumps

 

Single-stage, low-pressure centrifugal pump in in-line design with

  • Mechanical seal
  • Flange connection with pressure measuring connection R 1/8
  • Lantern
  • Coupling
  • IEC standard motor

 

Materials Wilo Pumps

 

  • Pump housing and lantern: Standard: EN-GJL-250; optionally spheroidal cast iron EN‐GJS‐400‐18‐LT
  • Impeller: Standard: EN-GJL-200; Special version: Red brass G-CuSn 10
  • Shaft: 1.4122
  • Mechanical seal: AQEGG; other mechanical seals on request

 

Scope of delivery

 

  • Pump
  • Installation and operating instructions

 

Options wilo pumps

 

  • L1 variant with red brass impeller (at additional charge)
  • H1 variant with housing made of spheroidal cast iron (at additional charge)
  • P4 variant for maximum operating pressure of 25 bar (see Wilo price list)
  • Motors with efficiency class IE3, other voltages and frequencies, as well as ATEX approval on request

 

Accessories of Wilo Pumps

 

  • Mounting brackets for installation on a base
  • PTC thermistor sensor, PTC resistor tripping relay
  • Special motors
  • Special mechanical seals
  • SC-HVAC, CC-HVAC, VR-HVAC control systems and switchgear

 

General notes – ErP (ecological design-) directive

 

  • The benchmark for most efficient water pumps is MEI ≥ 0.70
  • The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming of the impeller will adapt the wilo pumps to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.
  • The operation of this water pump with variable duty points may be more efficient and economic when controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.
  • Information on benchmark efficiency is available at www.europump.org/efficiencycharts

 

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