GS100 DOMESTIC WATER 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: Carbon Steel, 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 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

GS100 automatic self-priming pumps are compact surface pumps for clean-water supply, automatic boosting, water-tower feeding, shallow-source lifting, and garden irrigation. The range includes GS100 and STM models from 0.1 kW to 0.75 kW, with maximum heads from 21 m to 50 m and maximum flow from 1.5 m³/h to 3.0 m³/h. Cast iron hydraulic parts, a brass impeller, IP44 motor protection, and up to 9 m suction lift provide selection data. Automatic A models include pressure-switch control for demand-based operation.

Detailed Description

An automatic self-priming pump is useful where a surface-mounted unit must draw water from a source below the pump or respond to intermittent demand. The GS100 automatic self-priming pump family is intended for clean water and liquids non-aggressive to its stated materials. The self-priming arrangement supports shallow-source lifting within rated suction conditions, while the automatic version uses a pressure switch for start and stop control. This layout can suit storage tanks, domestic supply lines, gardens, irrigation points, and water-tower filling. Suction pipe sealing, source level, pipe diameter, and elevation affect actual operating results.

Key Features

The GS100 automatic self-priming pump range uses a cast iron pump body and support, an aluminum alloy motor housing, and a brass impeller for routine clean-water duties. The motor specification includes Class B insulation, external ventilation, IP44 protection, a built-in thermal protector, and S1 continuous work. Most models use 1 inch × 1 inch inlet and outlet connections. Automatic A models add pressure-switch operation for installations where water demand changes. The compact GS100 model provides a smaller output option, while STM models provide higher head and flow choices.

Technical Parameters

The model table is the reference for selecting a GS100 automatic self-priming pump. GS100 is rated at 0.1 kW / 0.13 HP, with 1.5 m³/h maximum flow and 21 m maximum head. STM250(A), STM300(A), and STM370(A) cover 0.25 kW to 0.37 kW, with heads from 25 m to 32 m. STM550(A) reaches 2.9 m³/h and 45 m, while STM750(A) reaches 3.0 m³/h and 50 m. All listed models show a 9 m maximum suction lift. Liquid temperature is listed up to 60 ℃ and ambient temperature up to 40 ℃. Standard supply is 220V/50Hz, with 110V/60Hz and 220V/60Hz options on request.

Engineering Advantages

A self-priming water pump manages air in the suction line during priming, which can simplify use above a shallow water source when the system is correctly installed. The brass impeller is specified for the intended clean-water service, and the cast iron hydraulic section provides a rigid mounting base. External ventilation assists motor heat management, while the thermal protector responds to abnormal motor temperature conditions. A sealed suction line and suitable pipe sizing are important for stable service.

Applications

GS100 automatic self-priming pumps can be considered for domestic water supply from storage tanks, shallow-source water lifting, garden watering, automatic pressure boosting, water-tower feeding, and small clean-water transfer duties. The automatic A models are relevant where a simple demand-based pressure switch is required. The range can support sheltered light commercial clean-water applications when the required flow and head are within the published model data. It is not intended for abrasive particles, sewage, or chemically aggressive liquids. Installation should be protected from adverse weather and follow applicable electrical and plumbing practices.

Commercial Value

For B2B buyers, the GS100 automatic self-priming pump family provides several motor sizes within a consistent clean-water range. This supports selection for small household supply needs through higher-lift transfer requirements. Shared hydraulic materials, standard voltage options, automatic variants, and familiar connection sizes can help distributors compare models and plan inventory. Published head, flow, power, gross weight, and dimensions help project purchasers estimate installation space and transport needs. CGO presents the GS100 and STM models with transparent parameters for actual duty-point selection.

FAQ

Q:What liquid can a GS100 automatic self-priming pump handle?
A:The listed use is clean water and liquids non-aggressive to the stated materials.

Q:What is the maximum suction lift?
A:The model table lists up to 9 m under suitable installation conditions.

Q:What does A mean in STM models?
A:It identifies an automatic version.

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