Description
The Kuobao MPHA-E-453 CAV Caustic Centrifugal Chemical Pump belongs to the widely utilized MPHA / MPH Series, manufactured by the Taiwan-based company Kuobao Mechanical (Zi Yi).
This specific industrial unit is a magnetic drive, sealless centrifugal pump specifically engineered to transfer highly corrosive chemical liquids, such as caustic soda (sodium hydroxide), acids, and plating solutions, without risk of leaking.
Model Breakdown & Nomenclature
Kuobao model numbers strictly define the exact specifications and material composition of the pump:
- MPH / MPHA: Represents the magnetic drive, self-priming centrifugal chemical pump series.
- E: Represents a targeted regional configuration, high-efficiency motor integration, or a specific design standard update.
- 453: Indicates the structural size, plumbing connection sizing (typically 40mm to 50mm inlet/outlet), and a 3 HP (2.2 kW) high-capacity industrial motor.
- CAV / CCV: Denotes the chemical resistance composition of the internal parts. In "CAV" configurations:
- C typically stands for Carbon (used in the bearing/bushings) or CFRPP casing.
- A / S designates the spindle shaft material, commonly Ceramic (99% Alumina) or SiC (Silicon Carbide) to resist intense abrasion and chemical reactions.
- V represents Viton (FKM) fluoropolymer O-rings, which offer superior chemical resistance to caustic and alkaline solutions.
Key Technical Overview
| Feature |
Specification Details |
| Pump Design |
Magnetic Drive Sealless Centrifugal |
| Motor Power |
3 Horsepower (HP) / 2.2 Kilowatt (kW) |
| Fluid Types |
Caustic soda (NaOH), industrial acids, plating chemicals, corrosive wastewater |
| Seal Type |
100% Sealless design (eliminates mechanical shaft seals) |
| Leak Protection |
Total containment using external/internal magnetic coupling |
Principal Advantages
- Zero Leakage Design: Because it eliminates conventional mechanical shaft seals, the fluid is completely contained inside a hermetically sealed rear casing. This entirely eliminates environmental pollution, chemical loss, and seal degradation hazards.
- Caustic Chemical Resistance: The internal materials are inert to strong bases and alkaline agents, preventing the swelling, softening, or corrosive pitting common in standard metallic pumps.
- Thermal Protection: Motor configurations include built-in automatic temperature protection to prevent motor burnouts if the system experiences overloads or fluid starvation.
- Tool-Free Modular Maintenance: The standard internal parts allow for simplified dismantling, inspection, and quick replacement without needing heavy or specialized mechanical tools.
Common Applications
These pumps are heavily deployed by international industrial operations and regional chemical suppliers like Cosmic Engineering across several primary fields:
- Surface Finishing & Plating Lines: Recirculating corrosive copper, nickel, gold, or zinc plating solutions.
- Printed Circuit Board (PCB) Manufacturing: Driving etching and stripping chemicals through automated processing tracks.
- Wastewater Treatment: Metering and moving caustic solutions used to neutralize acidic industrial runoff.
- Scrubber Systems: Pumping chemical scrubbing agents to neutralize toxic gases in exhaust stacks.
If you are replacing a part or ordering a complete assembly, GEASB can help you verify the exact flow rate capacity, cross-reference alternative O-ring materials (like EPDM), or find a local distributor. Which specifications are you looking to confirm.
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