1OTM AUTOMATIC SELF-PRIMING WATER PUMP

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

Product Overview

The CGO 1OTM cast iron automatic self-priming pump is a purpose-built solution for domestic water supply, automatic pressure boosting, water tower feeding, and shallow well extraction. Seven models spanning 0.15 kW to 1.1 kW cover maximum heads from 24 m to 60 m, giving this automatic water pump enough flexibility to serve single-family homes, multi-story residential buildings, and light commercial installations. A cast iron body with 304 stainless steel inserts resists corrosion and impeller seizure, while a brass impeller and built-in pressure switch deliver reliable, hands-free daily operation. IP44 ingress protection and a continuous S1 duty rating confirm this domestic water supply pump is engineered for uninterrupted, long-term use.

Key Features

CGO shaped the 1OTM self-priming pump around the everyday realities of residential water management. The cast iron pump body and support are both reinforced with 304SS inserts—a design choice that directly addresses rust-induced impeller blockage, one of the most common failure modes in plain cast iron pumps used in damp environments. The brass impeller maintains stable hydraulic efficiency across the full power range, and the 304SS motor shaft handles torque loads without corrosion-related fatigue. Die-cast aluminum alloy motor housing dissipates heat effectively, supporting the external ventilation cooling system and helping Class B insulation temperatures stay well within safe limits during continuous runs. The built-in automatic pressure switch makes this 1OTM automatic water pump genuinely hands-free: a drop in line pressure starts the pump, and a closed valve stops it—no wiring, no timers, no manual operation required.

Technical Advantages

Several deliberate engineering choices set the 1OTM cast iron self-priming pump apart. A maximum suction lift of 9 m means the pump can be positioned in a dry pump house above the water source—no submersible components, no diving for maintenance. The head capability spans 24 m on the entry-level 1OTM150 all the way to 60 m on the 1OTM1100, letting procurement teams pick the exact model for the job rather than over-sizing. Motor winding thermal protection cuts power before temperature can cause insulation breakdown, which directly lowers service call rates in the field. The liquid temperature rating of up to 60°C makes the CGO 1OTM domestic water supply pump suitable for solar thermal hot water circulation—an application where many standard residential pumps fall short. Multi-voltage availability (220V/50Hz standard; 110V/60Hz and 220V/60Hz on request) makes the line globally distributable without additional SKU complexity.

Applications

The 1OTM automatic water pump covers a practical range of residential and light commercial water management scenarios. As a domestic water supply pump, it maintains steady pressure for household taps, showers, and kitchen lines without needing a supplementary pressure tank upgrade. For water tower and rooftop tank filling, the higher-head models (1OTM800 and 1OTM1100) move water reliably upward in multi-story buildings. Homeowners with shallow wells find real value in the 9 m suction lift—the cast iron self-priming pump can sit in a weatherproof pump enclosure at ground level and draw directly from a bored or dug well. The 60°C liquid temperature rating also fits solar hot water boosting, and the automatic pressure switch simplifies integration into existing solar thermal systems where on-demand flow control matters.

Commercial Value

For distributors and wholesale buyers handling residential pump products, the CGO 1OTM self-priming pump presents a straightforward value case. Seven models within a shared cast iron body platform keep spare-parts commonality high—impellers, shaft seals, and motor bearings are closely dimensioned across the lower-power models, which reduces service inventory requirements. The 304SS inserts measurably cut rust-related field complaints, supporting better after-sales scores and lower return rates. The automatic pressure switch function is a tangible selling point with homeowners and contractors who want a set-and-forget installation. Multi-voltage motor options open export markets without requiring separate product development, and the compact footprint keeps per-unit shipping volume competitive against larger cast iron designs.

FAQ

Q: What does the "(A)" suffix mean in the 1OTM model designation?
A: The "(A)" stands for Automatic Version, indicating the unit ships with an integrated pressure switch for fully automatic start and stop. This feature is standard across all seven 1OTM models, making every variant a true plug-and-play domestic water supply pump rather than a manually controlled unit.

Q: Can the 1OTM handle water with a small amount of mineral scale?
A: The 1OTM cast iron self-priming pump is designed for clean water without abrasive particles. The 304SS inserts protect against iron oxide buildup that could seize the impeller, but the pump is not rated for water with significant sand, grit, or aggressive chemical content.

Q: What is the maximum well depth this pump can serve?
A: All 1OTM models support a maximum suction lift of 9 m. For boreholes or wells deeper than this, a submersible pump is the appropriate selection.

Q: Is the 1OTM suitable for solar hot water circulation?
A: Yes. The liquid temperature rating of up to 60°C allows the CGO 1OTM automatic water pump to handle hot water in residential solar thermal loops, making it a practical secondary pump for solar installations where standard cold-water pumps would not be appropriate.