NKV 1/14 S T Multistage centrifugal pump

Product detailed description

NKV 1/14 ST Multistage centrifugal pump

For pumps NKV 10 - 15 - 20

• Asynchronous enclosed two-pole motor cooled by external ventilation
• The rotor runs on robust rolling bearings with a permanent grease fill, ensuring quiet running and a long service life.
• The motor must be protected against short circuit and overload by suitable devices in the user's electrical installation, in accordance with applicable standards.
• Protection rating: IP55
• Insulation class: F
• Liquid temperature range: -15 °C to +120 °C
• Pumped liquid: clean, free of solids and abrasive particles, non-aggressive, non-viscous, non-crystallising, chemically neutral, with properties close to water
• Operating range 4 to 29 m³/h with a head of up to 249 m

For pumps NKV 32 - 45 - 65 - 95

Pump design.

• All pump parts that come into contact with the pumped liquid are made of non-corroding materials.
• The inner pump body is precision-cast stainless steel AISI 304; the diffusers are made of ULTEM technopolymer.
• The pump shaft is made of stainless steel AISI 431; the impellers and pump casing are made of stainless steel AISI 304.
• The outer base is finished with an electrophoretic surface coating, and together with the motor spacer is made of cast iron.
• Standardised silicon carbide/carbon/EPDM mechanical seal
• Connection to the motor shaft is by a rigid two-part sleeve coupling.
• Operating range 17 to 118 m ³ /h with a head of up to 320 m

Frequently Asked Questions

• How do I choose the right pump output/head? It must cover the pressure losses of your specific circuit (pipe length, number of fittings) - if unsure, consult a heating engineer who can size the pump precisely for you.
• Must installation be carried out by a professional? Fitting the pump into prepared pipework can be done by a DIYer; we recommend having the electrical connection and system balancing checked by a professional.