NKV 3/21 S T Multistage centrifugal pump DAB.NKV

Product detailed description

NKV 3/21 S T Multistage centrifugal pump

For pumps NKV 10 - 15 - 20

• Asynchronous closed double pole motor cooled by external ventilation
• The motor is housed in robust roller bearings with a permanent grease packing that ensures quiet operation and long life.
• The motor must be fused against short circuits and overloads by suitable devices in the user's wiring according to the applicable standards.
• Class of protection: IP55
• Insulation class: F
• Fluid temperature range: -15 °C to +120 °C
• Pumped liquid: clean, free of solids and abrasives, non-aggressive, non-viscous, non-crystallising, chemically neutral, properties close to water
• Operating range 4 to 29 m³/h with a discharge up to 249 m

For pumps NKV 32 - 45 - 65 - 95

Pump design.

• All parts of the pump that are in contact with the pumped liquid are made of non-corrosive materials.
• Inner pump body is made of precision cast AISI 304 stainless steel, diffusers are made of ULTEM technopolymer.
• Pump shaft is made of AISI 431 stainless steel, impellers and pump casing are made of AISI 304 stainless steel.
• The outer base body is electrophoretic coated and together with the motor intermediate housing are cast iron.
• Standardized mechanical seal silicon carbide/carbon/EPDM
• The connection to the motor shaft is a solid two-piece flange coupling.
• Operating range from 17 to 118 m³
/h with displacement up to 320 m