centrifugal pump dab NKV 1-3-6-10-15-20
centrifugal pump dab NKV 1-3-6-10-15-20Vertical multistage centrifugal pumps are designed for water supply and pressure boosting systems, boiler feed, hot water circulation in heating systems, condensate pumping and cooling systems, fire extinguishing and flushing systems systems, agricultural irrigation.
TECHNICAL CHARACTERISTICS
- Degree of protection: IP 55.
- Insulation class: F.
- Supply voltage: 3 x 230-400 V/50 Hz up to 4 kW inclusive
3 x 400 V Δ/50 Hz more than 4 kW. - Operating range: flow from 4 to 29 m3/h, pressure up to 249 m.
- Pumped liquid: clean, free of solid and abrasive inclusions, non-viscous, non-aggressive, non-crystallized, chemically neutral, similar in characteristics to water.
- Liquid temperature range: from-15 °C to +120 °C.
- Maximum ambient temperature: +40 °C (+50 °C on request).
- Maximum operating pressure: 25 Bar (2500 kPa).
- Installation: vertical, in a fixed position.
- Special design on request: electric motors for other voltages and/or frequencies with motor version EFF1;
explosion-proof motor design.
Version "S"-all components in contact with the pumped liquid are made of AISI 304 stainless steel.
Version "X"-all components in contact with the pumped liquid are made of AISI 316 stainless steel .
DESIGN FEATURES
Hydraulic housing and impellers, motor shaft and support diffuser – stainless steel AISI 304. Hydraulic housing with connecting flanges – cast iron with cataphoresis coating, engine support – cast iron. Mechanical seal-silicon carbide/silicon carbide, cartridge type, maintenance-free. The motor and hydraulic shafts are connected by a rigid coupling.
centrifugal pump dab NKV 1-3-6-10-15-20
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