Small Sanitary Centrifugal Pump

The BOSP Series Small Sanitary Centrifugal Pump represents the pinnacle of modern sanitary fluid engineering, meticulously developed by Boao Pump. Designed to meet the stringent requirements of GMP regulations, FDA guidelines, and global hygienic manufacturing standards, this next-generation centrifugal pump is engineered specifically for high-purity processing industries where batch contamination is never an option.

In modern biopharmaceutical, food, dairy, and beverage production, a pump is not merely a transfer tool; it is a critical component that directly impacts product safety, process stability, and manufacturing yield. By integrating innovative hydraulic designs with advanced precision manufacturing, the BOSP series delivers exceptional operating efficiency, superior cavitation resistance, and an extended service life. It provides a reliable, ultra-clean fluid transfer solution that minimizes total cost of ownership (TCO), reduces maintenance downtime, and maximizes production uptime for global manufacturers.

The Engineering Challenge: Overcoming Contamination and Cavitation

Process engineers in high-purity industries face constant challenges regarding fluid handling equipment. Traditional centrifugal pumps often suffer from hidden sanitary dead zones where product residues accumulate, leading to bacterial growth, cross-contamination, and batch failures during product changeovers. Furthermore, poor internal hydraulic geometries frequently cause high Net Positive Suction Head Required (NPSHr), resulting in severe pump cavitation, excessive noise, mechanical seal damage, and premature impeller failure.

The BOSP Series addresses these pain points directly through scientific fluid dynamics and premium materials. Every internal contour, sealing face, and connection interface has been optimized to ensure smooth flow vectors, maximum cleanability, and ultimate mechanical reliability under rigorous continuous operating conditions.

Structural Integrity & Engineering Advantages

• Complete Self-Draining Performance: The pump casing is equipped with a dedicated sanitary low-point drain valve. This structural design allows for the complete evacuation of residual fluids at the end of a production run, preventing fluid stagnation and supporting seamless automated draining procedures.
• Excellent Thermal Endurance: The standard BOSP pump configuration handles a wide operating temperature range from -20°C up to 100°C (-4°F to 212°F). For extreme thermal processes, a double-end mechanical seal with an integrated cooling jacket structure can be configured, allowing short-term Steam-In-Place (SIP) thermal sterilization cycles up to 133°C (271.4°F) without degrading seal integrity.

Tailored Sealing Technology: Advanced Mechanical Seal Configurations

To handle different medium characteristics, operating temperatures, and potential dry-running risks, the BOSP series can be configured with three distinct, high-performance mechanical seal types:

Flexible Configurations & Global Compatibility

To adapt seamlessly to your existing process piping architectures and global industrial power grids, the BOSP series offers fully modular and customizable configurations tailored to your specific project engineering specifications:

• Dual-Frequency Motor Options: To satisfy international electrical compliance, we provide high-efficiency electric motors compatible with both 50Hz and 60Hz power grids. Available power ratings span a wide envelope from compact 0.37kW models up to heavy-duty 11kW units, accommodating varying fluid viscosities and specific gravities.
• Versatile Process Piping Connections: The BOSP series can be supplied with a variety of internationally recognized port styles to match your regional piping standards. Options include heavy-duty Tri-Clamp connections, sanitary threaded unions complying with SMS or DIN11851 standards, and industrial hygienic flanges (DN25 to DN50).
• Premium Elastomer Sealing Compounds: Standard configurations are fitted with FDA-compliant food-grade Silicone elastomers. For processes involving aggressive chemicals, high fats, or organic solvents, we offer alternative high-performance seal materials including Viton (FKM), EPDM, PTFE, and NBR.
• Hazardous Environment Protection: For processing facilities handling flammable or volatile fluids, such as high-proof alcohol extraction or solvent-based chemical blending, motors can be upgraded to flameproof and ATEX-certified explosion-proof specifications.

High-Purity Target Applications

The versatility and uncompromising hygienic design of the BOSP series make it the preferred fluid transfer choice across multiple demanding industries:

• Biotech & Pharmaceuticals: Engineered for WFI (Water for Injection) looping systems, purified water generation, physiological saline solutions, cell culture media, plasma fractions, and sterile infusion transfers.
• Food & Dairy Processing: Perfect for handling liquid raw milk, pasteurized milk, cream, whey concentrates, liquid yogurt, liquid egg products, fruit pulps, and edible oils.
• Beverage & Brewery: Extensively used for transferring beer, wine, distilled spirits, soft drinks, liquid sugar syrups, fruit juice concentrates, and high-flow CIP scavenging lines.
• Personal Care & Cosmetics: Ideal for conveying skin lotions, hair shampoos, liquid soaps, facial creams, and high-purity deionized water feed lines.

Operational Value: Maximizing ROI and Equipment Lifespan

Investing in the BOSP Series Sanitary Centrifugal Pump delivers long-term economic benefits that far outweigh the initial procurement cost. By optimizing the internal hydraulic profile, the pump operates closer to its Best Efficiency Point (BEP), resulting in lower electrical power consumption and reduced energy costs over millions of operating cycles.

Furthermore, the modular selection of advanced mechanical seals allows plant managers to perfectly match the pump's sealing integrity to the specific risk profile of the application. Whether selecting a single seal for standard hygienic transfers, a double seal for high-temperature crystallized liquids, or a premium dry-running seal for applications where zero cooling fluid contamination is allowed, the BOSP series ensures maximum uptime. The dead-leg-free geometry speeds up automated CIP cycles, lowering the consumption of expensive cleaning chemicals, water, and energy, while allowing your plant to transition between different product batches faster and more safely.

Installation and Operating Guidelines

To ensure the optimal performance and longevity of your BOSP Sanitary Centrifugal Pump, please note the following technical operating conditions:

1. Flooded Suction Requirements: The BOSP series is designed as a non-self-priming centrifugal pump. It must be installed in a flooded suction configuration or placed at a lower elevation relative to the supply vessel to ensure the pump chamber is constantly filled with fluid prior to startup.
2. Seal Safety Compliance: Ensure your chosen mechanical seal configuration strictly aligns with your process safety protocols. For double mechanical seals, always verify that the cooling water loop is operational prior to starting the motor.
3. Self-Priming Alternatives: For applications requiring a suction lift setup, where fluid must be drawn from a lower pit or an underground vessel, please consult our engineering application team to select from our dedicated self-priming sanitary pump series.