EIIMAN Permanent Magnet Variable Frequency Multistage Self-Priming Pump

Technical Specifications

Specification	Value
Rated Power	400 W
Input Voltage	180–260 V
Pump Port Diameter	DN25
Rated Flow	2.5 m³/h
Maximum Flow	4.5 m³/h
Self-Priming Height	5 m
Rated Head	22 m
Maximum Head	40 m
Applicable Water Temperature	≤ 60°C
Speed Range	1900–4300 r/min
Product Weight	6.9 kg
Package Size	375 × 270 × 345 mm

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Application Scenarios

• Household water pressure boosting, water tank/well water supply
• Cold/hot water circulation, air energy circulation systems
• 1–3 story buildings: can supply 4–5 water outlets simultaneously
• 4–6 story buildings: can supply 2–3 water outlets simultaneously

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Key Features

Variable Frequency Energy Saving

With a high-speed 4300 RPM motor, the power adjusts automatically according to water usage, saving up to half the energy compared to traditional booster pumps.

Constant Pressure & Quiet Operation

AI algorithms maintain constant pipeline pressure, keeping water output stable regardless of position. The multi-stage centrifugal structure ensures quieter operation.

Full Protection

Includes:

• Dry-run protection
• Water inlet self-priming
• Overload protection
• Motor burn prevention
• Anti-freeze protection
• Burst protection (automatically starts when water temperature < 3°C)

Self-Priming Centrifugal Design

Innovative multi-stage self-priming structure eliminates the need for an air exhaust wall, solving the common pain point of poor self-priming in centrifugal pumps.

Stable & Durable

• Equipped with NSK high-speed bearings
• Carbide and graphite mechanical seals
• Stainless steel pressure chamber for enhanced durability

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Precautions

1. Applicable water temperature ≤ 60°C
2. Before first use or during exhibition demo, please add water for priming.