NPG

Design

Single-stage low-pressure centrifugal pump mounted on the baseplate

Application

Pumping heating water in accordance with VDI 2035 water/glycol mixtures, cooling/cold water and secondary hot water
Applications in municipal water supply, irrigation, building services, general industry, power stations, etc.







Special features/product advantages

• Suitable for temperatures up to 140°C
• Back-pull-out version
• Extension of the DIN EN 733 product range

Scope of delivery

• Pump
• Installation and operating instructions

Materials

• Pump housing: EN-GJL-250
• Impeller: EN-GJL-250
• Shaft: depending on type X30Cr13

Description/design

Single-stage low-pressure centrifugal pump in block construction with coupling, coupling protection, motor and baseplate

• Spacer coupling
• Mechanical shaft seal or stuffing box

General notes - ErP (ecological design-) directive

• The benchmark for most efficient water pumps is MEI ≥ 0.70
• The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.
• The operation of this water pump with variable duty points may be more efficient and economic when controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.
• Information on benchmark efficiency is available at www.europump.org/efficiencycharts