Butterfly Valves for Hygienic Valves for Food & Beverage Processing
Sanitary butterfly valves, weir-type diaphragm valves, and SS 316L ball valves for dairy, brewery, juice, beverage, and edible oil processing - CIP/SIP compatible, 3-A and EHEDG certified.
Which butterfly valves are used for hygienic valves for food & beverage processing?
Food, dairy, brewery, and beverage processing requires hygienic valves that comply with food safety regulations, withstand rigorous CIP (Clean-in-Place) and SIP (Steam-in-Place) cycles, and are designed to prevent microbial contamination of product. 3-A Sanitary Standards, EHEDG (European Hygienic Engineering and Design Group), and FDA 21 CFR compliance are the benchmark requirements. Surface finish, dead-leg elimination, and elastomer compatibility are critical design factors.
Sanitary Butterfly Valve
Standard isolation valve on dairy, brewery, and beverage process lines - 3-A or EHEDG certified, CIP-compatible
Mix-Proof (Double-Seat) Valve
Prevents cross-contamination between two fluids (product and CIP) by maintaining a leaked-to-atmosphere cavity between the two independent seats
Critical Requirements
- SS 316L minimum for all product-contact surfaces - low carbon content prevents sensitisation
- Internal surface finish Ra ≤0.8μm (ID) for product-contact surfaces, Ra ≤0.4μm for sterile and WFI applications
- 3-A Sanitary Standards or EHEDG certification - proof of cleanability and hygienic design
- CIP compatibility: valves must withstand NaOH (0.5–2%), HNO₃ (0.5–1.5%), and peracetic acid (PAA, 0.1–0.3%) at 70–85°C
- SIP capability: selected valves must withstand steam at 121–134°C for sterilisation cycles
- Zero dead-leg design: dead-leg length ≤2 × internal pipe diameter per ISPE Baseline Guide
Service Challenges
- Pasteurised milk and cream (pH 6.5, 4°C to 72°C) - SS 316L, EPDM seats, Ra ≤0.8μm
- CIP chemicals (strong NaOH, HNO₃, PAA) - chemical resistance of elastomers critical; EPDM for alkaline, PTFE for acid
- High-sugar syrups (Brix 65–75) - full-bore, self-draining valves prevent crystallisation and sugar build-up
- Beer and fermented beverages (CO₂-pressured, pH 3.5–4.5) - SS 316L body, EPDM seats resist carbonated low-pH products
- Edible oils (high viscosity, up to 60°C) - full-bore ball valves or butterfly valves with easy manual operation
Vajra Butterfly Valves
Compact and efficient butterfly valves for large-scale flow control and isolation.
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