Top Sanitary Pipe Fittings Manufacturer in China
Our sanitary grade pipe fittings deliver exceptional performance in stringent hygienic environments. Precision-engineered from premium 316L stainless steel, these fittings ensure reliable connections with superior sealing capabilities and excellent corrosion resistance. Ideal for pharmaceutical, food and beverage, or biotechnology applications, our sanitary pipe fittings meet strict ASME BPE and 3A standards while providing optimal cleanliness and safety.
Sanitary Pipe Fittings Technical Specifications
| Category | Details |
|---|---|
| Characteristics | Made from austenitic stainless steel (typically 304 or 316L). High corrosion resistance, hygienic design to prevent bacterial growth, and durable for long-term use. Designed for cleanability with smooth, crevice-free surfaces to minimize entrapment areas. |
| Surface Treatment | Mechanically polished or electropolished. Common finishes: 32 Ra (standard sanitary), 20 Ra (pharmaceutical-grade), or 15 Ra (high-purity applications like biopharma). Electropolishing enhances smoothness and passivation, reducing bacterial adhesion. |
| Dimensions and Specifications | Sizes range from ½” to 12” in outer diameter (OD), with ½” to 4” being most common. Wall thickness typically 0.065” (16Ga) for sizes ½” to 3”. Connection types include tri-clamp, butt-weld, or threaded. Conforms to standards like ASTM A270 for tolerances (e.g., wall thickness ±12.5%). |
| Corrosion Resistance | Excellent resistance to corrosion due to high chromium content (18–20% in 304, 16–18% in 316L) forming a passive oxide layer. 316L offers better resistance in chloride-rich or acidic environments due to molybdenum (2–3%). Suitable for exposure to water, organic acids, and cleaning chemicals, but may face pitting in high-chloride settings. |
| Mechanical Properties | For 304 stainless steel: Tensile Strength: ~73,200 psi; Yield Strength: ~31,200 psi; Hardness: ~70 HRB; Elongation: ~40%. 316L has slightly lower strength (Tensile: ~70,000 psi) but better corrosion resistance. Properties remain stable across a wide temperature range (-100°F to 400°F). |
| Processability | Good weldability (e.g., TIG welding for butt-weld fittings) and formability. Can be machined, though work hardening requires sharp tools and proper speeds. Fittings are designed for easy assembly/disassembly (e.g., tri-clamp connections) to facilitate cleaning. Surface finish aids in reducing friction during fabrication. |
| Applications | Food and beverage (dairy, brewery, winery), pharmaceutical, biotechnology, and chemical processing. Used in sanitary piping systems for conveying liquids/gases, ensuring hygiene in processes like CIP (clean-in-place). Common in construction, plumbing, and manufacturing where sterility is critical. |
| Standards | ASTM A270 (sanitary tubing/fittings), ASTM A967 (passivation), ASME BPE (bioprocessing equipment), 3-A Sanitary Standards (food-grade certification). Also aligns with ISO 2852, BS4825, and regional standards like GB, JIS, EN, DIN. |
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Our sanitary pipe fittings offer unmatched reliability in high-purity environments. Precision-crafted from premium stainless steel, these fittings ensure hygienic pipe connections with exceptional cleanability and superior corrosion resistance. Designed for food processing, pharmaceutical, and biotechnology applications, our fittings comply with stringent 3-A and ASME BPE standards, delivering optimal performance, safety, and durability in every system.
