NKV 1/17 S T Multistage centrifugal pump

Product detailed description

NKV 1/17 ST Multistage centrifugal pump

For pumps NKV 10 - 15 - 20

• Enclosed asynchronous two-pole motor cooled by external ventilation
• The rotor is mounted in robust rolling bearings with a permanent grease charge, 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 class: IP55
• Insulation class: F
• Liquid temperature range: from -15°C to +120°C
• Pumped liquid: clean, free of solid and abrasive substances, 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 construction design.

• All pump parts in contact with the pumped liquid are made of non-corroding materials.
• The inner pump casing is made of precision-cast AISI 304 stainless steel, and the diffusers are made of ULTEM technopolymer.
• The pump shaft is made of AISI 431 stainless steel, and the impellers and pump casing are made of AISI 304 stainless steel.
• The outer base casing is treated with an electrophoretic surface coating and, together with the motor spacer, is made of cast iron.
• Standardised mechanical seal: silicon carbide/carbon/EPDM
• Connection to the motor shaft is via a fixed two-piece clamp coupling.
• Operating range from 17 to 118 m3/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 in doubt, consult a heating engineer who can size the pump precisely for you.
• Must installation be done by a professional? Fitting the pump into a prepared pipe run can be handled by a skilled DIYer, but we recommend having the electrical connection and system balancing checked by a professional.