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Sanitary centrifugal pumps are single-suction, single-stage, centrifugal pumps designed for conveying various liquids such as milk, beverages, and alcohol. They are essential conveying equipment in the food, chemical, and pharmaceutical industries. These pumps are particularly suitable for applications in systems with high resistance, such as tubular pasteurization, yogurt temperature-holding equipment, and CIP cleaning systems.
Features of Sanitary Centrifugal Pump:
◎ Made of stainless steel with a stainless steel motor housing, this sanitary centrifugal pump features a hygienic and cost-effective design, making it highly suitable for dairy, beverage, food processing, pharmaceutical, and fine chemical industries.
◎ Precisely engineered to resist scaling, especially suitable for CIP cleaning;
◎ Simple structure, easy disassembly, low noise, high efficiency, and gentle, smooth material handling—meeting hygiene standards while preserving the original flavor of products.
Design and Structural Features:
This series of sanitary centrifugal pumps primarily consists of the pump body, pump base, and motor section, each connected by bolts. The support feet on the base are adjustable, allowing for easy installation without requiring a fixed foundation. During installation, the discharge pipe can be positioned either vertically or horizontally according to specific requirements. The centrifugal pump features smooth transitions, rigid construction, and thick-walled design. All components in contact with the process media—such as the pump body, pump cover, and impeller—are made of AISI 316 or AISI 304 stainless steel. The mechanical shaft seal is custom-made from high-quality stainless steel and silicon carbide, significantly enhancing wear resistance and lubricity, thereby extending service life. The pump body and impeller are manufactured using precision integral casting, and all parts undergo surface treatment. Specialized fixtures ensure accurate dimensional tolerances during assembly. An open-type structure is adopted at the shaft seal location, enabling immediate detection of any minor leakage. Even if leakage goes unnoticed for a short period, it will not overflow into the motor, thus ensuring the motor's longevity.
Unique impeller design:
The impeller and sleeve are precision-cast as a single unit, directly mounted on the motor output shaft. This design offers high strength, unique structure, simple installation, and high accuracy, ensuring concentricity, eliminating vibration, and enhancing pump durability. The precision casting of the impeller and sleeve prevents wear between the impeller and hub. The sleeve features an extended rear section that deepens the impeller inlet chamber, improving suction performance and preventing cavitation. The open-type impeller design allows for easy cleaning with no blind spots.
Working Principle:
The impeller is mounted inside the pump casing and rotates together with the pump shaft. The impeller blades transfer energy to the fluid in the form of kinetic and pressure energy. This pump cannot operate by simply reversing rotation. The direction of rotation can be observed from the rear of the motor, and the correct rotation direction is clockwise.
Features:
Stainless steel motor housing made of cold-formed sheet;
Open or closed impeller cast from stainless steel using investment casting;
Adjustable stainless steel feet;
Certified according to 3A sanitary standards;
IEC B35 motor, IP55, F-class insulation, 50Hz/60Hz;
Mechanical seals: C/St.St and SiC/SiC;
Gaskets: FPM (VITON) and PTFE;
Inlet and outlet connections: clamp, threaded, flange, DIN, SMS, RJT, IDF;
Parts in contact with product: AISI 316L/304;
Other parts: AISI 304;
Standard gasket: EPDM (FDA);
Standard mechanical seal: C/SiC/EPDM;
Internal surface finish: Ra
External surface finish: mirror polished, sandblasted (matte).
Technical Specifications:
Maximum flow rate: 150 m³/h;
Maximum head: 70 m (H);
Maximum pressure: 7 bar / 99 PSI;
Maximum temperature: 150°C / 248°F;
Maximum speed: 3000 min⁻¹;
Installation Method and Location:
Before installation, the following checks are essential:
◎ Whether the power supply indicated on the motor nameplate matches the on-site power supply;
◎ Whether the drive unit is intact and undamaged;
◎ Whether it meets special environmental conditions (e.g., flammable or explosive environments, acidic or corrosive environments).
Installation Location:
The installation base for sanitary centrifugal pumps should generally be a flat surface with sufficient strength. It is advisable to install the pump at the lowest possible position of the equipment, i.e., where the maximum lift height can be achieved.
Piping Installation:
The pipe diameter for sanitary centrifugal pumps should match the inlet and outlet diameters of the pump. The inlet pipe diameter must not be too small. (When the pipe diameter is smaller than the pump's inlet, use an eccentric reducer to adjust, minimizing the length of the smaller-diameter section to avoid air pockets.) The outlet pipe diameter must not be excessively large; if the outlet pipe diameter exceeds that of the pump outlet, extend the distance from the pump outlet as much as possible to prevent the motor from overloading.
Applications:
◎ Pharmaceuticals: Infusions, distilled water, high-purity water, herbal liquid containing particles (3–6 mm), extracts.
◎ Cosmetics: Dyes, alcohol, essential oils.
◎ Beverages: Alcohol, liquor, beer, wort, fermentation liquids, fruit juices, beverages with particles.
◎ Dairy products: Whey, cream, milk, sugar solutions.
◎ Others: Confectionery, baking, chemical industry, etc.
◆ Sanitary Pump Selection Technical Parameters:
Model Flow (m³/h) Head (m) Power (kW) Inlet Pipe Diameter (mm) Outlet Pipe Diameter (mm)
BAW01-8 1T 8m 0.37kW Φ32 Φ25
BAW03-16 3T 16m 0.75kW Φ38 Φ32
BAW05-24 5T 24m 1.5kW Φ38 Φ32
BAW05-32 5T 32m 2.2kW Φ51 Φ38
BAW10-24 10T 24m 2.2kW Φ51 Φ38
BAW10-36 10T 36m 3kW Φ51 Φ51
BAW15-24 15T 24m 3kW Φ51 Φ51
BAW15-36 15T 36m 4kW Φ51 Φ51
BAW20-24 20T 24m 4kW Φ63.5 Φ51
BAW20-36 20T 36m 5.5kW Φ63.5 Φ51
BAW30-24 30T 24m 5.5kW Φ63.5 Φ51
BAW30-36 30T 36m 7.5kW Φ76 Φ63.5
Note: For this series, models from 1T/h to 10T/h are available in single-phase 220V (0.37kW–2.2kW); all others are three-phase 380V. Please specify the voltage when placing an order. If no voltage is specified, the default will be three-phase 380V. No further explanation will be provided; we appreciate your understanding!
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