Product Features
This self-priming pump features:
Premium bearing system with stainless steel shafts and corrosion-resistant housing
Permanent magnet variable frequency motor with intelligent chip control (40-70% energy savings)
Dual-control system with precision pressure sensor and flow switch
Wide voltage compatibility (160-260V) with stable performance
Multi-mode operation:
• Manual/Auto/Constant Pressure/Water Tower Timer
Comprehensive protection:
• Dry-run/Stall/Voltage/Temperature/Freeze/Leakage
Digital display:
• Faults/Power/Pressure Settings/Timer/Speed
Applications
This automatic constant-pressure pump activates when household water pressure falls below preset levels, delivering stable supply and shutting off when faucets close. Ideal for:
Commercial applications (hotels/restaurants)
High-rise buildings & water tower systems
Solar/air-source heater boosting
Well/pond water extraction
Industrial equipment pressurization
Landscape irrigation & vehicle washing
Use conditions
· Medium temperature: 2-95℃,
· Ambient temperature ≤50℃
· Maximum system pressure ≤10 bar,
· Input voltage: 160-260V
· Medium conditions: clean, no solid matter, no fiber matter, no viscosity, no mineral oil, nearly neutral non-corrosive, non-flammable and explosive liquid. If you want to transport acidic and alkaline liquids, you should first consult the manufacturer and choose the appropriate material.
Specification
| Model number |
Voltage (V) |
Rated power (KW) |
Maximum flow (m3/h) |
Maximum lift (m) |
Rated current (A) |
Maximum suction (m) |
Diameter (mm) |
|
| 200W |
220 |
0.2 |
2.1 |
28 |
1.52 |
8 |
25 |
| 300W |
220 |
0.3 |
2.1 |
30 |
2.25 |
8 |
25 |
| 400W |
220 |
0.4 |
2.2 |
35 |
2.95 |
8 |
25 |
| 600W |
220 |
0.6 |
2.7 |
40 |
4.23 |
8 |
25 |
| 800W |
220 |
0.8 |
2.8 |
45 |
5.49 |
8 |
25 |
FAQs
1. What is a self-priming pump?
A self-priming pump is designed to automatically remove air from the suction line and create a vacuum to draw liquid without manual priming. It is ideal for applications where the pump is located above the liquid source.
2.How does a self-priming pump work?
The pump initially contains a small amount of liquid (priming fluid).
When started, it creates a vacuum, expelling air from the suction line.
Once air is purged, liquid flows continuously without needing re-priming.
3. What are the advantages of a self-priming pump?
No manual priming – Saves time and labor.
Handles air pockets – Can re-prime if air enters the system.
Versatile installation – Can be placed above the liquid level.
Reliable for intermittent use – Ideal for applications with frequent starts/stops.
