Sanitary centrifugal pumps are designed for industries requiring hygienic, sterile, or clean-in-place (CIP) fluid handling, such as food & beverage, pharmaceuticals, biotechnology, and cosmetics. They prevent contamination, resist corrosion, and meet strict regulatory standards (e.g., FDA, EHEDG, 3-A).
✔ Hygienic Design – Smooth surfaces, no crevices, easy to clean (CIP/SIP compatible).
✔ Material Compliance – FDA-approved materials (stainless steel 316L, polished surfaces).
✔ Seal Options – Mechanical seals or seal-less designs to prevent leakage.
✔ Drainability – Self-draining to avoid fluid stagnation.
✔ Surface Finish – Electropolished (Ra ≤ 0.8 µm) to resist bacterial growth.
Food & Beverage (milk, juices, syrups, beer)
Pharmaceuticals (vaccines, APIs, purified water)
Cosmetics (lotions, creams)
Biotech (cell cultures, fermentation)
Wetted Parts:
Stainless Steel 316L (most common, corrosion-resistant).
Polished Titanium (for highly corrosive fluids).
PTFE or EPDM gaskets (food-grade sealing).
Non-Wetted Parts:
Powder-coated or stainless-steel exterior.
Closed Impeller – Best for clean liquids (highest efficiency).
Open/Semi-Open Impeller – Handles viscous or slightly particulate fluids.
Tri-Clamp (Tri-Clover) Connection – Quick disassembly for cleaning.
| Type | Pros | Cons | Best For |
|---|---|---|---|
| Mechanical Seal | Reliable, durable | Requires maintenance | High-pressure CIP systems |
| Double Mechanical Seal | Prevents leaks | Higher cost | Hazardous/sterile fluids |
| Seal-less (Magnetic Drive) | No leakage risk | Limited to low-viscosity | Toxic/expensive fluids |
3-A Sanitary Standards (USA) – Dairy, food processing.
EHEDG (Europe) – Hygienic equipment design.
FDA 21 CFR – Food & pharmaceutical compliance.
ASME BPE – Bioprocessing equipment.
When choosing a sanitary centrifugal pump, consider:
✔ Fluid Type (viscosity, particulates, sterility needs).
✔ Flow Rate & Pressure (CIP/SIP compatibility).
✔ Material Compatibility (acidic/alkaline fluids).
✔ Cleaning Method (CIP, steam sterilization).
✔ Regulatory Requirements (FDA, 3-A, EHEDG).
Alfa Laval (LKH series)
SPX Flow (APV)
Grundfos (BioBoost)
Fristam (FKL)
ITT Goulds (Sanitary pumps)
CIP (Clean-in-Place) – Uses hot water, detergents, or steam.
SIP (Sterilize-in-Place) – Steam at 121°C+ for pharma applications.
Inspection – Regular checks for seal wear, surface cracks.
Sanitary centrifugal pumps are essential for hygienic, high-purity fluid transfer in regulated industries. Key takeaways:
Stainless steel 316L + electropolishing for corrosion resistance.
Tri-clamp connections for easy disassembly.
Mechanical seals or magnetic drives for leak prevention.
Compliance with FDA, 3-A, or EHEDG based on industry.
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