Sando Rotary manufactures centrifugal pumps for clean water, chemical process, effluent transfer, thermic fluid, slurry, self-priming and multistage duties. Our team supports model selection around flow, head, NPSH, material compatibility and sealing requirements.
Choose from standard process pumps, self-priming pumps, multistage pumps and high-temperature designs built around your liquid, installation and operating cycle.
For acids, alkalis, solvents, process water and corrosive transfer where MOC and seal selection decide service life.
Useful for transfer points with suction lift, intermittent operation, tank unloading and dewatering where priming reliability matters.
Selected for boiler feed, pressure boosting, RO systems and high-head transfer where efficiency and stable performance are important.
Designed for heat transfer oil circulation, heating systems and high-temperature process loops with suitable bearing and seal arrangements.
Configured for abrasive or solids-bearing liquids after reviewing particle size, concentration, velocity and wear allowance.
For refinery, petrochemical and continuous process applications where standards, documentation and reliability requirements are higher.
A centrifugal pump works best when the pump curve, system resistance and liquid properties are reviewed together. Sando Rotary helps narrow the model before quotation.
Flow rate, total head, suction condition, static lift, friction losses and available NPSH.
Liquid name, temperature, viscosity, specific gravity, pH, vapor pressure and solids content.
Pump type, material of construction, impeller, seal plan, motor rating and coupling arrangement.
Dimensional data, quotation, installation guidance, spares and after-sales support.
Use this table as an initial model-size reference. Final selection should be based on the pump curve, liquid properties and site conditions.
Reference curves for preliminary pump selection. Confirm final duty point with Sando Rotary before ordering.
Use this 50Hz performance curve to compare model performance across the operating range before detailed sizing.
Use this 60Hz performance curve to review the applicable model range, then share flow, head and liquid data for final confirmation.
SUC/DEL values are in mm. RPM options vary by model and duty point.
| Model / Size | Suction / Delivery | RPM |
|---|---|---|
| SD 25/16 | 25 / 16 | 2900 |
| SD 32/13 | 32 / 13 | 1450 / 2900 |
| SD 32/16 | 32 / 16 | 1450 / 2900 |
| SD 32/20 | 32 / 20 | 1450 / 2900 |
| SD 32/26 | 32 / 26 | 1450 / 2900 |
| SD 40/13 | 40 / 13 | 1450 / 2900 |
| SD 40/16 | 40 / 16 | 2900 |
| SD 40/20 | 40 / 20 | 1450 / 2900 |
| SD 40/26 | 40 / 26 | 1450 / 2900 |
| SD 50/13 | 50 / 13 | 1450 / 2900 |
| SD 50/16 | 50 / 16 | 1450 / 2900 |
| SD 50/20 | 50 / 20 | 1450 / 2900 |
| SD 50/26 | 50 / 26 | 1450 / 2900 |
| SD 50/32 | 50 / 32 | 1450 / 2900 |
| SD 65/13 | 65 / 13 | 1450 / 2900 |
| SD 65/16 | 65 / 16 | 1450 / 2900 |
| SD 65/20 | 65 / 20 | 1450 / 2900 |
| SD 65/26 | 65 / 26 | 1450 / 2900 |
| SD 65/32 | 65 / 32 | 1450 / 2900 |
| SD 80/16 | 80 / 16 | 1450 / 2900 |
| SD 80/20 | 80 / 20 | 1450 / 2900 |
| SD 80/32 | 80 / 32 | 1450 / 2900 |
| SD 80/40 | 80 / 40 | 1450 / 2900 |
| SD 100/20 | 100 / 20 | 1450 / 2900 |
| SD 100/26 | 100 / 26 | 1450 / 2900 |
| SD 100/32 | 100 / 32 | 1450 / 2900 |
| SD 125/26 | 125 / 26 | 970 / 1450 |
| SD 125/32 | 125 / 32 | 970 / 1450 |
| SD 125/40 | 125 / 40 | 970 / 1450 |
| SD 150/26 | 150 / 26 | 1450 |
| SD 150/32 | 150 / 32 | 970 / 1450 |
| SD 150/40 | 150 / 40 | 970 / 1450 |
Final MOC depends on fluid compatibility and duty conditions.
| Material | Typical applications | Corrosion behavior |
|---|---|---|
| CI | Water, cooling, utility and non-aggressive liquids | Moderate |
| CS / MS | Oil, hydrocarbon, hot water and general industrial duties | Low without coating |
| SS304 | Food, beverage, mild chemicals and process water | High |
| SS316 / SS316L | Corrosive chemicals, acids, pharma and marine environments | Excellent for many services |
| CI / CS with SS internals | Industrial duty with stainless wetted or wear components | Good for selected duties |
The right sealing arrangement depends on liquid hazard, temperature, solids, crystallization tendency and maintenance preference.
Single or double mechanical seals with suitable face and elastomer combinations for common industrial process duties.
A practical option for many water and non-hazardous services where controlled leakage and simple maintenance are acceptable.
Considered where zero external leakage is important for hazardous, toxic, high-value or odor-sensitive liquids.
Browse listed models and share your application details for exact sizing, performance confirmation and quotation support.
Chemical Process Pumps are corrosion-resistant centrifugal pumps designed for safe and efficient handling of aggressive, toxic, or acidic chemicals in industrial applications.
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PPC Thermic Fluid Pumps are specially designed for high-temperature heat transfer applications using thermic fluids, offering leak-proof and reliable operation without external cooling.
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CWP Water Pumps are high-performance, single-stage centrifugal pumps used for reliable water transfer in domestic, agricultural, and industrial applications.
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NCS Slurry Pumps are heavy-duty centrifugal pumps designed for handling abrasive slurries, thick liquids, and solid-laden fluids in tough industrial environments.
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CSP Self-Priming Pumps are designed to handle water, slurry, and light chemicals with the ability to prime automatically without foot valves, ideal for quick and easy startup.
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High-capacity mixed flow pumps designed for efficient handling of large volumes of water at medium heads in irrigation, drainage, power plants, and industrial applications.
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High-performance Magnetic Drive Pumps (metallic and non-metallic) designed for leak-free, corrosion-resistant, and maintenance-free fluid handling in chemical, pharmaceutical, and industrial applications.
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Heavy-duty Slurry Pumps designed for handling abrasive, viscous, and solid-laden fluids in harsh industrial and mining environments. Built for durability, performance, and long service life.
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Monoblock pumps are compact and efficient centrifugal pumps where the pump and motor are mounted on a single shaft, forming a single integrated unit. This design eliminates alignment issues, reduces maintenance, and ensures reliable performance for various water transfer and industrial applications.
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A Vertical Extended Shaft Pump is designed for applications where the pump motor must remain above the liquid level while the impeller operates deep inside tanks, pits, or underground reservoirs. The extended shaft connects the motor to the submerged impeller, allowing efficient liquid transfer from deep sources while protecting the motor from corrosive or hazardous fluids.
View specificationsCentrifugal pumps are usually preferred for continuous movement of low to moderate viscosity liquids at stable duty points.
Acid, alkali, solvent, dosing tank transfer, process circulation and utility services.
ETP, STP, process water, cooling water, filter feed, transfer and recirculation duties.
Clean liquid transfer, CIP circulation, process water and selected hygienic duties with compatible MOC.
Hydrocarbon transfer, refinery utilities and API or process-duty pump requirements.
Dye liquor, chemical preparation, finishing, bleaching, process water and effluent transfer.
Slurry, process water, abrasive transfer and wash-down duties after solids review.
Both pump types are useful in industrial plants, but they solve different problems. The right choice depends on flow pattern, liquid behavior, priming needs, safety requirements and available utilities.
Use this as a practical shortlist guide. Final selection depends on exact process data.
| Selection point | Centrifugal pump | AODD pump |
|---|---|---|
| Flow pattern | Best for continuous, steady flow at a fixed duty point. | Good for transfer, batching and variable operating conditions. |
| Liquid viscosity | Works best with clean, low to moderate viscosity liquids. | Handles higher viscosity and changing viscosity more comfortably. |
| Self-priming | Standard designs usually need flooded suction or priming. | Naturally self-priming and suitable for suction-lift duties. |
| Dry run behavior | Dry running can damage seals and rotating parts. | Can tolerate dry running better, depending on construction. |
| Solids and slurry | Needs selected slurry design and solids review. | Often suitable for solids-bearing and abrasive fluids with correct materials. |
| Leakage control | Uses mechanical seal, gland packing or magnetic drive options. | Sealless diaphragm design reduces rotating seal leakage risk. |
| Energy and utilities | Efficient for high-flow continuous operation with electric motor drive. | Uses compressed air, which can be convenient but often costs more to run. |
| Typical applications | Water transfer, cooling, process circulation, thermic fluid, high-flow transfer. | Chemical unloading, effluent, paint, viscous liquids, hazardous-area transfer. |
Short answers to common selection questions from maintenance, purchase and project teams.
Start with flow rate, total head, suction condition, NPSH available, liquid name, viscosity, specific gravity, temperature, solids, corrosion risk and operating hours. Sando Rotary reviews these details to recommend a suitable model, material and seal arrangement.
Use a centrifugal pump for steady continuous flow of clean or moderately loaded low-viscosity liquids. Consider an AODD pump for strong self-priming needs, dry-run tolerance, variable viscosity, compressed-air operation or difficult solids-bearing fluids.
The best material depends on chemical name, concentration, temperature, chlorides, abrasion and pH. SS316 or SS316L is common for many corrosive services, but some liquids may need PP, PVDF, alloy, lined construction or another pump type.
NPSH margin helps prevent cavitation, vibration, noise and impeller damage. The site NPSH available should be higher than the pump NPSH required at the selected duty point.
Send flow, head, liquid, temperature, viscosity, specific gravity, pH or concentration, solids size, suction condition, pipe size, installation type, motor supply, preferred MOC and seal requirements.
Yes, but only when the design is selected for the slurry. Particle size, solids concentration, abrasion, velocity, impeller design and wear allowance must be reviewed before choosing a centrifugal slurry pump.
50Hz pumps commonly run near 2880 RPM or 1440 RPM, while 60Hz pumps commonly run near 3500 RPM or 1750 RPM. The higher speed changes flow, head and power, so the correct frequency curve should be used for selection.
Standard centrifugal pumps are usually not self-priming and need flooded suction or a priming arrangement. Self-priming centrifugal pumps are available for tank unloading, dewatering and suction-lift transfer duties.
Neither is better for every duty. Centrifugal pumps are strong for efficient continuous flow, while AODD pumps are preferred for self-priming, dry-run tolerance, variable viscosity, solids and many difficult chemical transfer applications.
Common causes include wrong rotation, air in suction, cavitation, worn impeller, blocked strainer, incorrect pipe sizing, high viscosity, excessive system head or operating far away from the best efficiency point.
No. The model, material, impeller and seal must match the liquid properties. A pump suitable for water may fail quickly in corrosive chemicals, abrasive slurry or high-temperature thermic fluid service.
Share your flow, head and liquid details with Sando Rotary engineers for pump sizing, MOC guidance and quotation support.