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OTK Series Horizontal Double-suction Axially Split Centrifugal Pumps are our newgeneration products with abroad leading technologies. The series pump features inhigher efficiency, lower NPSH, lower running noise and stable with a widerapplication, like waterworks, irrigation and drainage pump station, industrial watersupply system, firefighting system, marine industry, refinery industry and so on.
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The OTK Series Double-impeller Double-Suction Axially Split Volute Casing Pump is a next-generation centrifugal pump integrated with global leading technologies, designed for large-flow, high-lift fluid transfer. With its unique double-impeller and double-suction structure, this pump delivers exceptional efficiency, low Net Positive Suction Head (NPSH), and minimal running noise—making it ideal for high-demand scenarios such as waterworks, irrigation and drainage pump stations, industrial water supply systems, firefighting systems, marine industry, and refinery industry. Unlike single-suction pumps, it balances axial forces to reduce wear, ensuring stable operation even under 24/7 heavy loads.
| Capacity | 60-10000 m3/h |
| Head | 89-350m |
| Power | 45-2800kw |
| Sizes | 80-800mm |
| Speed | 490-2950r/min |
The dual-impeller structure doubles fluid intake, enabling a capacity range of 60-10000 m³/h—perfect for large-scale water supply (e.g., city waterworks) and irrigation projects. The double-suction design also lowers NPSH, reducing the risk of cavitation and extending pump life.
Equipped with an optimized axially split volute casing, the pump achieves energy efficiency rates of over 85%—exceeding industry averages by 10%. For refineries and industrial water systems, this translates to annual energy savings of up to $10,000 for large-scale operations.
With precision dynamic balancing and sound-dampening casing materials, the pump operates at ≤75 dB (at 1m distance)—far quieter than standard industrial pumps. This makes it suitable for urban waterworks and marine applications where noise pollution is a concern.
The split casing design allows quick access to internal components (impellers, seals) without disconnecting pipelines. For refinery industry pumps or firefighting systems, this cuts maintenance downtime from 8 hours to 2 hours—critical for time-sensitive operations.
From firefighting system pumps (high-lift 89-350m) to marine ballast water transfer, the OTK Series adapts to diverse fluids (clean water, seawater, light oil) and environments. Its 490-2950 r/min speed range further enhances flexibility for different flow and head requirements.
The OTK Series complies with ASME and ISO 9906 standards, ensuring compatibility with global industrial systems. Its casing and impellers are made of high-strength cast steel (or duplex stainless steel for seawater) to resist pressure and corrosion. Each pump undergoes 48-hour continuous operation testing to verify performance stability. SPMC also offers a 24-month warranty and on-site technical support for critical industries like firefighting and refineries.
Yes—with duplex stainless steel customization, it resists seawater corrosion, making it ideal for marine industry pumps (e.g., ballast water, cooling water).
The pump offers a maximum head of 350m, which meets the high-pressure demands of firefighting systems and high-rise building water supply.
Absolutely—its motor is compatible with external frequency converters, allowing speed adjustment to match variable flow needs (e.g., seasonal irrigation changes), further reducing energy use.
Elevate your large-flow fluid transfer operations with the OTK Series Double-impeller Double-Suction Axially Split Volute Casing Pump!
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Download 19-OTK.pdf for technical drawings and performance curves—ensure seamless integration with your existing systems!
