B25 Hygienic Pump
B25 Hygienic Pump
The B25 Hygienic Pump is a medium-capacity air operated double diaphragm pump (AODD) specifically designed for sanitary fluid transfer in demanding environments. Built using FDA-compliant elastomers and corrosion-resistant 316L stainless steel, this pump supports CIP (Clean-in-Place) operations and meets strict EU design approvals for hygienic processing.
Ideal for medium-scale applications in food, beverage, dairy, pharmaceutical, and chemical industries, the B25 is designed to deliver high performance, hygiene, and safety, all in one compact solution.
Key Features
- Available with DIN, RJT, and Ferrule connections
- Self-priming for effective drum and container emptying
- Certified CIP-cleanable for hygienic operations
- Food-grade elastomers (EPDM, PTFE, Viton®, etc.)
- Handles viscous and high specific gravity fluids
- Built with 316L stainless steel for corrosion resistance
- EU design approval & ATEX certified for explosive environments
Technical Specifications
| Parameter | Details |
| Maximum Delivery | 136 ltrs/min (36 gal/min) |
| Max. Working Pressure | 8.6 bar (125 PSI) |
| Max. Solid Particle Size | 5 mm (0.2″) |
| Air Inlet | 3/8″ NPT |
| Temperature Limits | Determined by elastomers |
| Suction Lift (Dry) | 4.6 metres (15.1 feet) |
| Suction Lift (Wet) | 6.1 metres (20 feet) |
| Fluid Inlet / Outlet | 1″ RJT |
| Installation | Wall or surface mounted |
| Accessories Included | Exhaust Air Silencer |
| Shipping Weight | 21.5 kg (47.4 lbs) – Stainless Steel |
| Shipping Dimensions | 450 x 280 x 500 mm (17.7″ x 11″ x 19.7″) |
Material & Temperature Compatibility
The B25 is available with various diaphragm and valve seat materials to handle a wide range of fluid properties and temperatures.
| Material | Max Temp (°C/°F) | Min Temp (°C/°F) | Optimal Range (°C/°F) | Description |
| Buna-N | 80°C / 176°F | -28°C / -18°F | 10–60°C / 50–140°F | General use; oil-resistant |
| EPDM | 100°C / 212°F | -24°C / -11°F | 10–100°C / 50–212°F | Best for water & alkaline solutions |
| Neoprene | 100°C / 212°F | -20°C / -4°F | 10–54°C / 50–130°F | Moderate chemical resistance |
| Santoprene® | 100°C / 212°F | -23°C / -10°F | 10–100°C / 50–212°F | Long mechanical life & abrasion resistance |
| PTFE (Teflon) | 180°C / 356°F | 0°C / 32°F | 10–100°C / 50–212°F | Chemically inert; best for harsh fluids |
| Viton® | 180°C / 356°F | -18°C / 0°F | 24–100°C / 75–212°F | Excellent solvent, acid, oil resistance |
| Polypropylene | 70°C / 158°F | -40°C / -40°F | 10–60°C / 50–140°F | Lightweight and chemically resistant |
B25 Hygienic Pump Applications
- Food Processing: Concentrates, sauces, syrups
- Beverage & Dairy: Flavored liquids, milk derivatives, starter cultures
- Pharmaceutical: Sterile and CIP-compatible fluid transfer
- Personal Care & Cosmetics: Creams, gels, lotions
- Chemical Industry: Harsh acids, solvents, detergents
Frequently Asked Questions (FAQ)
Q1: Is the B25 pump suitable for explosive environments?
Yes, the B25 is ATEX certified, making it safe for hazardous and flammable zones.
Q2: Can it be used for CIP (Clean-in-Place) processes?
Absolutely. The pump is fully CIP-cleanable and designed for sanitary systems.
Q3: What is the main difference between B15 and B25?
The B25 offers higher flow rates and handles larger solid particles, making it ideal for medium-scale operations.
Q4: Which elastomer material should I choose?
Selection depends on the process fluid. PTFE for aggressive chemicals, EPDM for water-based fluids, Santoprene® for durability.
Q5: Does this pump support high-viscosity products?
Yes, it is engineered for viscous and high specific gravity fluids, perfect for syrups, creams, and concentrates.
21_B25_X25_Hygienic_manual 03-03-03
Optimize your medium-scale hygienic processes with the reliable Alfa Laval B25 Hygienic Pump. Reach out now for tailored solutions.