DAB.NKV - vertical multistage pumps (1-20)

The DAB.NKV series includes vertical multistage centrifugal pumps designed for a range of applications including water pressurization, heating system circulation, and irrigation. These pumps are suitable for use with clean, non-aggressive, and non-viscous liquids. They are commonly used in domestic, commercial, and agricultural settings where reliable and efficient pumping is required.

Available in various models, the DAB.NKV series is constructed with AISI 304 stainless steel for internal components, with an optional AISI 316 version available on request. These pumps are WRAS and ACS certified for potable water use and feature high-efficiency IE3 electric motors.

How to choose

• Assess the required flow rate (1 to 120 m³/h) and head (up to 320 m) to determine the appropriate model.
• Confirm compatibility with the liquid properties: non-aggressive, non-viscous, and free of abrasives or solids.
• Select the appropriate material version (AISI 304 standard or AISI 316 on request) based on the chemical nature of the liquid.
• Ensure the pump is suitable for the operating temperature range (-30°C to +120°C for EPDM seals; -15°C to +120°C for Viton/FKM seals).
• Verify the electrical requirements (single-phase 1x230 V up to 2.2 kW, three-phase 380-415 V at 50 Hz from 3 kW).

Frequently asked questions

Can the mechanical seal be replaced without removing the motor?
Yes, for models with 5.5 kW output and above, the mechanical seal is removable without dismantling the motor.

What is the maximum operating pressure for the NKV 65 and 95 models?
The NKV 65 and 95 models have a maximum operating pressure of 25 bar (2500 kPa).

What is the recommended motor protection for these pumps?
The motor must be protected against short circuit and overload using appropriate devices in the user's wiring according to applicable standards.