About

Single Phase Self-Priming Monoblock Pump Description

A Single Phase Self-Priming Monoblock Pump is an above-ground centrifugal water pump that combines the motor and pump on a single shaft (monoblock design) and features self-priming capability. Designed to operate on standard single-phase electrical power, this pump automatically removes air from the suction line during startup, allowing it to prime itself without manual filling each time. It offers reliable water flow and pressure for domestic water supply, overhead-tank filling, garden irrigation, and light water transfer applications.

The integrated motor drives a centrifugal impeller, which draws water into the pump and accelerates it outward through the volute casing. The self-priming feature allows the pump to remove trapped air from the suction line at startup, establishing a continuous water flow without needing repeated manual priming, provided the pump has been initially primed.

Key Features

• Single-phase motor runs on standard household power (e.g., 220240 V)

• Monoblock design motor and pump on one shaft for compactness and alignment accuracy

• Self-priming capability simplifies startup and operation

• Durable, corrosion-resistant construction

• Above-ground installation easy access for maintenance

Typical Applications

• Residential water supply and overhead-tank filling

• Garden, lawn, and landscape irrigation

• Livestock watering and small agricultural tasks

• Cottages & small buildings

**Advantages

**

• Self-priming operation less manual effort and quicker startups

• Compact & efficient reduced downtime and maintenance

• Suitable for common household water needs

• Easy to install and operate

Limitations

• Not suited for deep well pumping (limited suction lift)

• Performance depends on proper suction line and foot valve installation

• Above-ground pumps are noisier than submersible alternatives

Typical Specifications (varies by brand/model)

• Motor Power: 0.5 HP to 3 HP (depending on model)

• Max Suction Lift: ~2025 ft (68 m)

• Flow Rate: ~30120 LPM (varies with size)

• Max Delivery Head: ~2560 m

• Power Supply: Single-phase AC (e.g., 220240 V)