WILO CronoNorm NL Cradle-Mounted Pumps


WILO CronoNorm NL Cradle-Mounted Pumps

NL Cradle-Mounted Pumps

seal

Cradle-mounted pumps are multi-purpose and applicable to various media which require reliable and low-cost water supply. This series features five main application fields. They are as follows:

  • Water supply
  • Pressure boosting in industrial systems
  • Pumping process liquids
  • Heating, ventilation, air-conditioning
  • Irrigation 

Single-stage low-pressure centrifugal pump with axial suction point, according to EN 733 and ISO 5199, mounted on a base plate.

 

Technical Characteristics:

  • Head is up to 145 m;
  • Flow rate is up to 3000 m³/h;
  • Pump housing and installation plate are made of EN-GJL-250 cast iron, the impeller is made either of cast iron or bronze;
  • Maximal process pressure: 10 or 16 bar depending on a model;
  • Temperature of pumped medium: -10°С, max. +120°С;
  • Maximal ambient temperature: +40°С;
  • Protection class: IP55;
  • Seal: either mechanical seal or gland seal.
Type’s Code:
Example: NL 32/200B-0,75-4-05
  • NL – series name;
  • 32 – diameter of inlet nozzle, DN;
  • /200 – nominal impeller diameter, mm;
  • B type of hydraulics;
  • 0,75 – motor power, kW;
  • 4 – number of motor poles;
  • 05 – pump version.
Operational Characteristics
Characteristics when frequency is n=1450 r/min

Characteristics when frequency is n=1450 r/min

 
Operational Characteristics
Characteristics when frequency is n=2900 r/min

Characteristics when frequency is n=2900 r/min

 
Application
  • Pumping clean or slightly contaminated water (max. 20 ppm) containing no solid matter for circulation, transfer and pressure boosting purposes
  • Pumping heating water in accordance with VDI 2035, water/glycol mixtures, cooling/cold water and industrial water.
  • Applications in municipal water supply, irrigation, building services, general industry, power stations, etc.
Special features/product advantages
  • Burgmann mechanical seal with conical sealing chamber
  • Brand shaft protection
  • SPM connections for vibration and temperature sensors
  • Shaft deflection according to DIN ISO 5199
  • Permanently lubricated, generously dimensioned ball bearings (2Z version)