Description
The Barmesa 4KAG503 is a 5.0 HP, 3-Phase, 230V submersible light slurry pump. Engineered to efficiently handle low to medium density slurries and fluids with minimal abrasiveness , these pumps are prevalent in industries such as mining, construction, and wastewater treatment. They facilitate the transfer of light slurries and fluids in diverse industrial s 4" vertical / horizontal hose coupling. ASTM A-48 class 30.
Barmesa Pumps — Miami, Florida
Barmesa Pumps is a North American pump manufacturer based in Miami, Florida — serving industrial, municipal, and commercial markets with submersible, centrifugal, and specialty pump lines.
Industrial-Grade Construction
Cast iron, stainless steel, and bronze construction options — specify the material combination matched to your fluid chemistry, temperature, and service conditions.
Mechanical Seal Design
Mechanical seal construction eliminates packing adjustment and replacement — lower maintenance, no drip, and longer service intervals compared to traditional stuffing box designs.
Stainless Steel Shaft
Stainless steel shaft provides corrosion resistance at the seal interface — the most common failure point on pump shafts in continuous wet service applications.
Wide Configuration Range
Available in multiple HP, voltage, and construction configurations within each series. All models share casing dimensions and spare parts for simplified stocking and service.
Full Parts and Service Support
Genuine Barmesa replacement parts and service support available through PumpStop — contact us for parts lists, maintenance manuals, and technical support.
| Model Number | 4KAG503 |
| Series | 4KAG503 / 504 series |
| Category | Submersible Light Slurry Pumps |
| Horsepower | 5.0 HP |
| Phase | 3-Phase |
| Voltage | 230V |
| Speed | 3450 RPM |
| Discharge | 4" vertical / horizontal hose coupling. ASTM A-48 class 30. |
| Max Liquid Temperature | 104 °F (40 °C) UPPER COVER Cast iron ASTM A-48 class 30 PUMP BODY Cast iron ASTM A-48 class 30 |
| Motor | Three phase induction motor, 230 & 460 volts, 60 Hz, 3450 RPM. Insulation class F and IP68 protection class. |
| Impeller | Design: semi-open Material: high chrome alloy AGITATOR High chrome alloy INLET PLATES Ductile iron & high chrome alloy |
| Shaft | 420 AISI stainless steel |
| Mechanical Seal | Design: double mechanical, oil filled chamber. Material: SiC-SiC / Carbon-SiC. Stainless steel hardware. |
| Motor Housing | Cast iron ASTM A-48 class 30 |
| Hardware | 304 series stainless steel Built-in high chrome alloy agitator. barmesapumps O-RINGS Cast iron Nitrile rubber (NBR) |
| Paint / Finish | Air dry enamel, water based. |
| Cord Entry | 50 ft of neoprene cord, sealed against moisture. |
- Never use this pump to handle explosive liquids.
- This pump is not approved to be used in swimming pools, recreational installations or any application where
- Testing is performed with water specific gravity of 1.0 @ 68 °F (20 °C); other fluids may vary performance.
| Fluid compatibility | For use with clean water and non-explosive liquids compatible with pump materials. Never use with explosive, flammable, or corrosive fluids unless specifically rated. |
| Swimming pools | Not approved for use in swimming pools, recreational installations, or any application where human contact is common. |
| Temperature | Do not exceed maximum liquid temperature rating (104 °F (40 °C) UPPER COVER Cast iron ASTM A-48 class 30 PUMP BODY Cast iron ASTM A-48 class 30). Exceeding limits causes seal and motor damage. |
| Electrical | Requires properly sized, grounded branch circuit with correctly rated motor starter and thermal overload protection. |