Core Advantages: Engineering Highlights
Zero-Pocket Microbial Mitigation: The highly polished, crevice-free flow path prevents any residual product accumulation, eliminating the microscopic pockets where bacteria can colonize and ensuring flawless hygienic performance.
Excellent CIP/SIP Endurance: Formulated from advanced, high-performance food-grade elastomers, the sealing seat resists aggressive caustic washes, acidic sanitizers, and superheated steam without chemical degradation or flavor leaching.
Streamlined, Ultra-Lightweight Build: Composed of minimal mechanical components, this valve features a short face-to-face distance that minimizes pipeline footprints, simplifies field disassembly, and lowers overall structural loading.
Ergonomic Multi-Position Throttling: Equipped with a rugged, multi-position pull-rod or notch positioning handle, the manual configuration permits fine incremental control over line flow rates. Additionally, the standard top-mounting interface allows for seamless upgrading to pneumatic or electric smart actuators.
Strategic Application & Working Conditions
Thanks to its sterile design and dependable chemical resilience, this sanitary butterfly valve is widely utilized across ultra-clean utility and process networks:
Processing Sector | Primary Application Loop | Fluid Media / Cleaning Methods |
Dairy Processing | Raw Milk Reception, Pasteurized Lines | Milk fats, liquid whey, high-frequency CIP caustic wash |
Brewery & Beverage | Wort Cooling, Fermentation, Filling Lines | Beer, carbonated soft drinks, fruit juices with pulp |
Biopharmaceuticals | WFI (Water for Injection) Loops, Buffers | Purified water, sterile ingredients, SIP steam cycles |
Personal Care Packaging | Cosmetics Mixer Outlets, Filling Lines | Creams, lotions, high-viscosity pastes, surfactants |
Food Processing | Bulk Liquid Handling, Condiment Piping | Liquid sugar, vegetable oils, liquid egg processing |
Technical Selection & Installation Advice
To ensure optimized sanitation and a long operational lifespan, use the following engineering parameters when selecting your valve layout:
1. Sealing Liner Optimization (The Chemical & Thermal Match)
Choosing the right elastomer compound is vital to avoid line contamination caused by seal swelling or degradation:
EPDM: The standard workhorse for general food lines, offering excellent resilience against hot water, steam, and polar fluids. Avoid use with fatty or oily media.
Silicone: Offers an exceptional temperature range and superior elasticity. Excellent for delicate food items, beverages, and biopharmaceuticals. Low resistance to high-concentration caustics.
FKM (Viton): The premier choice for high-fat contents, vegetable oils, animal fats, and aggressive flavor concentrates operating at elevated temperatures.
2. Sizing and Flow Velocity
Sanitary lines are typically sized based on maintaining specific fluid velocities to ensure effective self-cleaning during CIP cycles (usually around 1.5 to 2.1 m/s). Do not oversize the butterfly valve relative to the piping, as a partially open disc in a low-velocity line can cause localized vortexing and uneven wear on the trailing edges of the elastomer liner.
3. Pipeline Expansion and Clamp Alignment
When installing valves featuring sanitary Tri-Clamp or Weld connections, precise alignment of the pipeline is essential. If the piping is misaligned or experiencing excessive thermal stress, the resulting twisting forces will squeeze the valve body out of round. This increases the operational torque of the disc, wearing out the actuator and tearing the elastomer liner prematurely.
4. Orientation for Full Drainage
To guarantee complete system drainage during a CIP cycle (achieving zero standing liquid), it is highly recommended to install the valve with the stem positioned horizontally, rather than vertically. This positioning allows fluid to drain freely over the bottom edge of the disc when cracked open, preventing a small dam of liquid from collecting behind the vertical stem base.
5.Quality Assurance and Hygienic Inspection Protocols
To ensure absolute reliability within sensitive human-consumption production chains, SDF subjects every sanitary valve to extensive factory verification:
High-Pressure Hydraulic Sealing Test: Every butterfly valve is pressure tested at $1.5 \times$ its nominal rating to verify structural tightness across both the shell and seat interfaces.
Surface Roughness Profiling: High-precision electronic profilometers trace the internal bore parameters to guarantee full compliance with global hygienic standards.
Material Heat Traceability: Chemical verification testing (including PMI material confirmation) ensures that only premium-grade, unadulterated 304 or 316L stainless steel is used in the manufacturing process.
FAQ
1.When can I get a quotation?
We typically provide a quotation within 4 hours of receiving your inquiry. Urgent requests are given priority.
2.Do you support customized valves?
Yes. We support OEM and customized valves according to drawings, specifications, and special working conditions.
3.What is the production lead time?
Normally, production can be completed within 15 working days after order confirmation, depending on product type and quantity.
4.What standards do your valves comply with?
Our products comply with GB, ANSI, API, JIS, DIN, BS, and other international standards.
5.What pressure, size, and temperature ranges can you supply?
Pressure: Class 150-3500 Size: DN10-DN3000 Temperature: -196ºC to 610ºC
6.What certifications do you have?
We are certified with ISO 9001, CE, and provide third-party inspection and test reports upon request.
7.What delivery and payment terms do you offer?
Delivery terms: EXW, FOB, CFR, CIF
Payment terms: T/T (30% deposit + 70% balance), L/C, and other terms by agreement.
8.Do you provide technical support and spare parts?
Yes. We offer 24/7 technical support and supply spare and consumable parts for long-term service.
