- Minimum Efficiency Index (MEI) ≥ 0.4
- Permissible temperature range of -20 °C to +140 °C
- Mains connection 3~400 V, 50 Hz (others on request)
- Protection class IP55
- Nominal diameter DN 32 to DN 150
- Max. operating pressure 16 bar (optionally 25 bar on request)
- Single-stage low-pressure centrifugal pump in block design, with axial suction port and radially arranged pressure port with
- Mechanical sealFlange connection with pressure measuring connection R 1/8
- Lantern
- Coupling
- IEC standard motor
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- Pump housing and lantern: Standard: EN-GJL-250; optional: Spheroidal cast iron EN-GJS-400-18-LT (depending on type)
- Impeller: Standard: EN-GJL-200; special version: Bronze CuSn 10 stainless steel 1.4408 (depending on type)
- Shaft: 1.4122
- Mechanical seal: AQEGG; other mechanical seals on request
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PumpInstallation and operating instructions
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- ...-L1 variant with bronze impeller (at additional charge)
- …-L4 variant with stainless steel impeller (at additional charge)
- ...-H1 variant with housing made of spheroidal cast iron (at additional charge)
- Other voltages and frequencies as well as ATEX approval on request
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- Bases (pump housing and motor) for installation on a base
- PTC thermistor sensor, PTC thermistor tripping relay
- Special motorsSpecial mechanical seals
- SC-HVAC, CC-HVAC control systems and switchgears
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The benchmark for most efficient water pumps is MEI ≥ 0.70The 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/efficiencychartsPumps with power consumption > 150 kW or a volume flow QBEP < 6 m3/h are not subject to the Ecodesign Directive for water pumps. Therefore, no MEI value is shown.
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