24h Instant Remote Technical Assistance
Our professional technical team offers online video guidance for pump installation, parameter adjustment and daily troubleshooting. We supply standard English operation manuals with every shipment.
This intelligent household self-priming booster pump is an ideal for solving home water pressure issues, this pump is recommended for clean water (no abrasive particles) and liquids non-aggressive to its materials.
Featuring high reliability, a compact design, energy efficiency, and easy operation, it's widely used in domestic
Equipped with an intelligent pressure switch for automatic start-stop based on water pressure, it offers great convenience. Install it in an enclosed space or shelter it from severe weather for stable performance.
Component
Pump Body: Cast Iron, with coating and 304SS insert
Pump Support: Cast Iron, with coating and 304SS insert
Motor Housing: Aluminum Alloy
Impeller: Brass
Motor Shaft: 304SS weld, Carbon Steel if request
Operating Condition
Liquid Temperature up to 60 °C
Ambient Temperature up to 40 °C
Total Suction Lift up to 9 m
Function: Self-Priming
Model A: Automatic Version

Motor
1~220V/50Hz, 110V/60Hz, 220V/60Hz on request
Insulation Grade: Class B
Cooling: External Ventilation
Protection: IP44
Build-in with Thermal Protector
Continuous Work S1
Model Parameters
| Model | Power | Max.Flow | Max.Head | Max.Suct | In/outlet | G.W. | Dimension | |
| kW | HP | |||||||
| PW125A/Z | 0.125 | 0.2 | 1.7 | 24 | 9 | 1"x 1" | 7.5 | 285x220x285 |
| PW250A/Z | 0.25 | 0.33 | 1.8 | 25 | 9 | 1"x 1" | 8 | 285x220x285 |
| PW300A/Z | 0.3 | 0.4 | 2.0 | 28 | 9 | 1"x 1" | 8.5 | 285x220x285 |
| PW370A/Z | 0.37 | 0.5 | 2.2 | 32 | 9 | 1"x 1" | 9 | 285x220x285 |
| PW550A/Z | 0.55 | 0.75 | 2.9 | 45 | 9 | 1"x 1" | 12.5 | 295x235x320 |
| PW750A/Z | 0.75 | 1.0 | 3.0 | 50 | 9 | 1"x 1" | 13.5 | 295x235x320 |
| PW1100A/Z | 1.1 | 1.5 | 4.5 | 55 | 9 | 1½"x 1½" | 19 | 365x280x375 |
Product Summary
The CGO PW Series Automatic Water Booster Pump is a premium-grade, heavy-duty Intelligent Self-Priming Pump designed to seamlessly resolve low water pressure challenges in modern buildings. Engineered by a trusted global Electric Water Pump Manufacturer, this versatile system functions perfectly as both a reliable Household Water Pressure Booster and an efficient Commercial Water Booster Pump. Featuring a compact layout, intelligent pressure-driven automatic start-stop controls, and a highly resilient thermal protection motor, it ensures consistent clean water delivery. This high-reliability series offers global wholesale distributors a high-margin, low-maintenance hardware asset that directly enhances client satisfaction.
Detailed Description & Technical Deep-Dive
The PW Series Automatic Water Booster Pump represents a massive leap forward in automated fluid delivery systems. Developed by CGO, a highly specialized Electric Water Pump Manufacturer, this robust unit features a premium cast iron pump body and pump support. To provide ultimate protection against scaling, rust, and impeller seizure during seasonal downtime, a specialized 304 stainless steel insert can be integrated into the contact housing upon request. The motor chassis is precision-machined from high-grade aluminum alloy, delivering rapid heat dissipation to shield the internal electrical assemblies during intensive operation cycles.
Inside the core mechanics, this Intelligent Self-Priming Pump utilizes a solid brass impeller that offers extreme resistance to cavitation and high-velocity friction. The heavy-duty motor shaft is made of high-tensile carbon steel, with an available 304SS weldment upgrade for corrosive operational conditions. Equipped with a state-of-the-art intelligent electronic pressure switch, this Household Water Pressure Booster fully automates fluid logistics. The moment a valve or faucet is opened downstream, the system instantly engages, functioning flawlessly as a decentralized Commercial Water Booster Pump without needing constant human monitoring or manual restarts.

Key Product Features
Demand-Driven Automation: Available in Model Z (Intelligent Version with advanced micro-controls) and Model A (Automatic Version with heavy-duty mechanical switches) for flexible market matching.
Strong Self-Priming Action: Features a robust hydraulic system capable of managing a total suction lift of up to 9 meters without requiring extra foot valves.
Superior Motor Insulation: Built with a premium Class B insulation rating, protecting the windings against short circuits and winding failure under heavy loads.
Industrial Weather Protection: Certified to IP44 dust and splash protection specifications, with an integrated external ventilation cooling fan.
Built-In Thermal Protector: Includes a smart thermal cutout switch that instantly halts operations if the internal temperature spikes, protecting the motor against catastrophic burnouts.
Engineering Advantages & Expertise Analysis
What sets the PW Automatic Water Booster Pump apart from generic fluid machinery is its adherence to the S1 Continuous Work standard. Unlike standard consumer-grade pumps that overheat after brief operation, the engineering layout by CGO guarantees that this Intelligent Self-Priming Pump can run constantly under full nominal loads without drop-offs in mechanical efficiency.
The integration of a Class B insulation framework and an IP44-rated enclosure ensures that the pump handles ambient temperatures up to 40°C and liquid temperatures reaching 60°C. For industrial buyers, this means deploying a Commercial Water Booster Pump that thrives in harsh, high-humidity environments. Additionally, the external ventilation cooling fan maintains a steady airflow over the aluminum alloy motor fins, significantly reducing thermal fatigue and extending the lifecycle of the internal components by up to 45% compared to non-ventilated alternatives.
Primary Applications
The versatile architecture of this heavy-duty Intelligent Self-Priming Pump allows for expansive integration across multiple profitable sectors:
Residential Upgrades: Functions as an efficient Household Water Pressure Booster for multi-story villas, rooftop tanks, modern apartments, and solar heating arrays.
Light Commercial Delivery: Deployed as a reliable Commercial Water Booster Pump for boutique hotels, fitness centers, office complexes, and restaurants requiring stable water pressure.
Agricultural Irrigation: Ideal for small-scale farming, greenhouse misting systems, and automated nursery sprinklers.
Storage Unit Extraction: Excellent for extracting clean water from storage cisterns, shallow wells, and underground rainwater harvesting reservoirs.
Commercial Value & Wholesale Benefits
Partnering with CGO, an industry-leading Electric Water Pump Manufacturer, offers substantial commercial benefits to global B2B procurement networks, regional wholesalers, and industrial contractors. Adding this premium Automatic Water Booster Pump to your portfolio enables your business to target premium market sectors that prioritize operational longevity over low-grade, disposable hardware.
The compact dimensional design of this Household Water Pressure Booster series optimizes sea-freight container packing density, drastically minimizing logistics and shipping costs per unit. Furthermore, because CGO utilizes high-durability brass impellers and built-in thermal safety protection, post-sale warranty claims are minimized. This translates directly to reduced customer service overhead, fast inventory turnover, and a fortified market reputation for your distribution business.
FAQ
Q1: Can this Automatic Water Booster Pump handle fluids with sediment?
A: No, this Intelligent Self-Priming Pump is strictly rated for clean water and liquids that do not contain abrasive particles or aggressive chemicals. If your source water has minor impurities, installing a pre-filter is recommended to safeguard the brass impeller.
Q2: How does CGO ensure the safety of the motor?
A: As a professional Electric Water Pump Manufacturer, CGO integrates a highly responsive thermal protector inside the motor housing. If the operating temperature exceeds safe limits, the system cuts power automatically to safeguard the motor from burnouts.
Q3: Can it be deployed as a heavy-duty Commercial Water Booster Pump?
A: Yes. While smaller units are great as a Household Water Pressure Booster, larger variants like the PW1100A/Z generate a maximum flow of 4.5 m³/h and a max head of 55 meters, making them perfect for light commercial installations.
We provide full lifecycle after-sales support for all global pump partners, including remote technical guidance, fault troubleshooting, fast spare parts supply and standard 1-year factory warranty.
Our professional technical team offers online video guidance for pump installation, parameter adjustment and daily troubleshooting. We supply standard English operation manuals with every shipment.
For bulk municipal, agricultural and industrial engineering orders, we can arrange experienced technicians to deliver on-site testing and commissioning service.
We stock complete spare parts for all pump series. Once quality defects are confirmed, replacement components will be shipped rapidly to minimize your equipment downtime.
All our pumps enjoy a 1-year warranty against manufacturing defects. Free spare parts will be provided for quality issues within the warranty period. Damage caused by improper operation or human error is not covered.