PQ AUTOMATIC PERIPHERAL BOOSTER PUMP

Component

Pump Body: Cast Iron, with 304SS insert if request
Pump Support: Cast Iron, with 304SS insert if request
Motor Housing: Aluminum Alloy
Impeller: Brass
Motor Shaft: 304SS weld if request

Operating Condition

Liquid Temperature up to 60 ℃
Ambient Temperature up to 40 ℃
Total Suction Lift up to 9 m
Function: Self-Priming
Model Z: Intelligent Version
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

Product Summary

PQ automatic intelligent self-priming pumps are compact clean-water surface pumps for domestic supply, pressure boosting, garden irrigation, water-tower feeding, and small transfer systems. The family includes PQ125, PQ250, PQ370, PQ550, and PQ750 variants in automatic A and intelligent Z versions. Published output ranges from 0.15 kW to 0.75 kW, with maximum heads from 24 m to 50 m and flow capacities from 1.7 m³/h to 3.0 m³/h. Cast iron hydraulic parts, a brass impeller, IP44 protection, and a 9 m suction-lift rating provide clear selection data.

Detailed Description

The PQ automatic intelligent self-priming pump series is intended for clean water and liquids that are non-aggressive to the stated materials. It is designed for places where stable pressure, convenient surface installation, or automatic water demand control is useful. The self-priming arrangement supports shallow-source lifting within the rated suction condition. Automatic A models use pressure-switch operation, while intelligent Z models provide an intelligent version within the same product family. This gives distributors a practical choice for homes, small buildings, garden systems, and water storage applications. Source level, suction pipe sealing, pipe diameter, elevation, and local electrical requirements affect the final working result.

Key Features

Each PQ automatic intelligent self-priming pump uses a cast iron pump body and support, an aluminum alloy motor housing, and a brass impeller. The motor specification includes Class B insulation, external ventilation, IP44 protection, a built-in thermal protector, and S1 continuous work. These features support routine clean-water service where a compact pump is needed. The series uses 1 inch × 1 inch inlet and outlet connections. PQ automatic intelligent self-priming pumps are supplied in a power range that allows selection based on the actual head and flow requirement.

Technical Parameters

The model table is the main reference for selecting a PQ automatic intelligent self-priming pump. PQ125A / Z is rated at 0.15 kW and reaches 1.7 m³/h with a 24 m maximum head. PQ250A / Z and PQ370A / Z extend the head range to 25 m and 28 m. PQ550A / Z provides 2.9 m³/h and a 45 m maximum head, while PQ750A / Z provides 3.0 m³/h and a 50 m maximum head. All listed models show a 9 m maximum suction lift. Liquid temperature is listed up to 60 ℃ and ambient temperature up to 40 ℃. Standard voltage is 220V/50Hz, with 110V/60Hz and 220V/60Hz on request.

Engineering Advantages

A self-priming pump manages air in the suction line during priming, helping it work from a source positioned below the pump when installation conditions are suitable. The brass impeller is specified for the intended clean-water duty, and the cast iron hydraulic structure gives the pump a stable installation base. External ventilation helps move heat away from the motor, while the thermal protector provides a response to abnormal motor temperature conditions. Performance depends on the pump model and the complete system: suction piping, fittings, water level, and discharge resistance all affect the working point.

Applications

PQ automatic intelligent self-priming pumps can be considered for domestic water supply from tanks, shallow-source water lifting, garden watering, automatic boosting, and water-tower feeding. They may also be used for clean-water transfer in sheltered small commercial locations when the required duty falls within the published model data. The automatic A version can suit installations requiring demand-based start and stop behavior, while the intelligent Z version offers another control option in the family. These pumps are not intended for sewage, abrasive solids, or chemically aggressive liquids.

Commercial Value

For B2B buyers, the PQ automatic intelligent self-priming pump range provides five performance steps in one product family. Shared hydraulic materials, connection size, voltage options, and application focus can simplify product comparison and inventory planning. The A and Z designations provide a way to discuss automatic and intelligent versions with customers who have different control expectations. Published head, flow, gross weight, and dimensions help project buyers estimate installation space, packaging, and transport needs. CGO positions the PQ range around practical clean-water applications and transparent model data.

FAQ

Q:What liquid can a PQ automatic intelligent self-priming pump handle?
A:The listed application is clean water and liquids that are non-aggressive to the stated materials. What is the maximum suction lift? The model table lists up to 9 m, subject to correct suction piping and installation conditions.

Q:What do A and Z mean?
A:A is the automatic version and Z is the intelligent version.

Q:How should a model be selected?
A:Compare required flow, total head, source level, pipe losses, and available power with the model data. Use an enclosed or sheltered installation and follow applicable electrical and plumbing practices.