Electric Sanitary Butterfly Valves

Tri-Clamp Quick-Disconnect Series

Engineered for fast-turnaround food and beverage packaging skids (DN25 to DN150 / 1" to 6"). Standard sanitary clamp ferrule ends conform strictly to ASME BPE, 3-A, and ISO 2852 dimensions, enabling tool-free line disassembly for swab sampling and visual sanitization inspections.

• Tool-less clamp ferrule quick release and gasket replacement
• Precision electropolished internal bore (Ra ≤ 0.4 µm) prevents biofilm adhesion
• Bidirectional zero-leakage shut-off up to 10 bar (145 psi) working pressure

Sanitary Butt-Weld Cleanroom Series

Designed for permanent high-purity pharma distribution loops and sterile Water-for-Injection (WFI) lines. Features extended tube weld ends with controlled sulfur chemistry engineered for automated orbital tube welding without dismantling the valve body.

• Conforms strictly to ASME BPE orbital welding dimensional tolerances
• Eliminates elastomeric clamp gaskets in permanent pharma loops
• Withstands continuous SIP steam sterilization cycles up to 140°C (284°F)

Mirror Electropolish (Ra ≤ 0.4 µm)

Internal disc and bore surfaces receive electrochemical polishing to an ultra-smooth finish (Ra ≤ 0.4 µm / 16 µin). Eliminates microscopic surface pits, preventing yeast, milk proteins, and bacteria from adhering to the metal.

FDA & 3-A Certified Liners

Available with non-toxic, odorless Silicone, EPDM, or FKM seal liners fully compliant with FDA 21 CFR 177.2600 and 3-A Sanitary Standards. Imparts zero color, taste, or odor to craft beers, fruit juices, and dairy products.

Forged Low-Carbon AISI 316L

Constructed exclusively from forged 316L stainless steel (1.4404) with low carbon content (C ≤ 0.03%). Prevents intergranular corrosion during orbital welding and resists hot caustic washdown chemical sanitizers.

Washdown IP67/IP68 Actuators

Sanitary packaging areas require aggressive daily sanitization. Actuators feature smooth, crevice-free epoxy coatings, stainless hardware, and sealed IP67/IP68 enclosures that resist high-pressure caustic spray hosedowns.

Self-Draining CIP/SIP Design

Engineered with full circular porting and smooth disc transitions that leave zero fluid pooling pockets. Supports clean-in-place (CIP) flushing at 85°C and steam-in-place (SIP) sterilization up to 140°C without elastomer degradation.

Fast Clean Dosing & Batching

Electric actuators provide fast 5–8 second quarter-turn cycling for automated beverage bottling and tank transfers, or high-resolution 4–20mA modulating control for precise syrup and flavor recipe dosing.

1. Why is low-carbon 316L stainless steel required over standard 304 or 316?

During welding of sanitary pipe ferrules or butt-weld ends, standard stainless steel suffers chromium carbide precipitation along grain boundaries, leaving the weld seam vulnerable to pitting corrosion from acidic fruit juices or CIP sanitizers. Low-carbon 316L (carbon content ≤ 0.03%) prevents carbide sensitization, ensuring maximum corrosion resistance and cleanroom sterility.

2. How does internal surface roughness (Ra) affect CIP cleanability?

Rough metallic surfaces provide microscopic shelter where bacteria, sugar syrups, and proteins adhere and multiply into stubborn biofilms. DELCO electropolishes wetted surfaces to Ra ≤ 0.4 µm (16 micro-inches), creating a mirror-smooth, chromium-enriched passive layer. This guarantees non-stick fluid flow and enables fast, complete chemical sanitization during automated CIP cycles.

3. Which liner elastomer should be chosen for dairy vs. craft beer pipelines?

• Dairy Products: Food-grade Silicone or EPDM is standard; silicone handles butterfats and high-temperature pasteurization with zero odor transfer.

• Brewery & Craft Beer: EPDM is preferred because it resists both carbon dioxide (CO2) saturation and the hot caustic (sodium hydroxide) washing solutions used during beer tank cleaning.

4. Can the electric actuator withstand aggressive daily washdowns?

Yes. Food packaging rooms undergo daily sanitation using high-pressure hot water and chlorinated foam detergents. DELCO electric actuators feature smooth, crevice-free epoxy coatings, 304 stainless steel hardware, and certified IP67/IP68 sealed enclosures that prevent moisture ingress from aggressive washdown sprays.