EIIMAN Permanent Magnet Variable Frequency Multistage Self-Priming Pump

Technical Specifications

Parameter	Value
Rated Power	700 W
Input Voltage	180 – 260 V
Pump Inlet/Outlet Diameter	DN25
Rated Flow	3 m³/h
Maximum Flow	5.5 m³/h
Self-Priming Height	5 m
Rated Head	33 m
Maximum Head	50 m
Applicable Water Temperature	≤ 60 °C
Speed Range	1000 – 4800 r/min
Net Weight	7.3 kg
Package Dimensions	375 × 270 × 345 mm

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Application Scenarios

• Household water pressure boosting, water tank or well supply, cold-water/air-energy circulation.
• 1 – 3 floors: can supply 5 – 6 taps simultaneously.
• 4 – 6 floors: can supply 4 – 5 taps simultaneously.
• 7 – 9 floors: can supply 3 – 4 taps simultaneously.

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Key Features

Variable Frequency Energy Saving

The 4800 r/min high-speed motor automatically adjusts power based on water usage.
Energy consumption is about half that of traditional constant-speed pumps.

Constant Pressure & Low Noise

AI calculates the pipeline pressure precisely, ensuring consistent outlet pressure at different locations.
High-molecular polymer materials and stainless-steel flow parts ensure quiet and stable operation.
Three-impeller design delivers higher efficiency.

Comprehensive Protection

• Dry-run protection: automatically stops when no water is detected.
• Overheat protection
• Overload protection
• Anti-freeze protection: when powered but water temperature < 3 °C, the pump will auto-start to prevent freezing.
• Overcurrent protection
• Anti-lock protection

Self-Priming Design

Adopts an upgraded centrifugal structure with a built-in air-elimination wall,
allowing efficient self-priming and solving common air-lock issues.

Durability & Stability

Equipped with NSK precision bearings, a magnet-silicon and graphite high-speed motor,
and a stainless-steel pressure chamber, ensuring long life and reliability.

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Safety Notes

1. Suitable for water temperatures within 60 °C.
2. For display or first-time use, add water before operation to prime the pump.