Sanitary Union Fittings - Premium Quality for Hygienic Applications*High-precision sanitary union fittings compliant with international standards for food, pharmaceutical, and chemical industries* Product Overview Our sanitary union fittings are engineered to meet strict hygienic requirements, available in multiple international standard forms to suit diverse industrial applications. With reliable sealing performance, excellent corrosion resistance, and easy installation, they are widely trusted in sectors requiring sterile and contamination-free fluid transfer. Core Specifications
| Item | Details |
| Standard Forms | SMS Sanitary Union Fitting, IDF Sanitary Union Fitting, DIN Sanitary Union Fitting, German Standard Union Fitting, Trapezoida |
| Sizes | DN15 – DN150; 1〞 – 6〞; Ф12.7 – Ф152.4 |
| Connection Types | Sanitary Union Fitting Series |
| Compliance Standards | ISO, DIN, IDF, SMS, 3A, etc. |
| Material | Stainless Steel SUS304, Stainless Steel SUS316L |
| Surface Quality | Precision polished interior and exterior (meets high surface finish requirements) |
| Sealing Ring | EPDM, NBR, PTFE |
| Working Temperature | -10℃ to +150℃ |
| Customization | Accepts non-standard customization (per customer's drawings or samples) |
Key Features & Engineering Advantages
Strict Quality Control: CNC precision-machined with internal/external high-grade polishing to prevent bacterial accumulation.
Material Traceability: 100% authentic SUS304/SUS316L with provided Material Test Reports (MTR) for bulk orders.
Versatile Standards: Fully interchangeable with global equipment components (ISO, DIN, IDF, SMS, 3A).
Reliable Sealing: Equipped with temperature-resistant EPDM/NBR/PTFE gaskets, tested to withstand 1.0MPa working pressure.
DIN vs. SMS Sanitary Unions: What is the difference?
| Feature | DIN Standard Union | SMS Standard Union |
|---|
| Thread Type | Round thread (Rd) | Round thread (but shallower than DIN) |
| Seal Design | D-shaped or O-ring seal, sitting inside a groove | Flat lip seal (L-shaped gasket) |
| Primary Market | Widely used in Germany and European chemical/pharma sectors | Dominant in global dairy and beverage industries |
How to order non-standard custom sanitary unions?
Submit Specifications: Provide your required connection type, exact dimensions, and material grade (304/316L).
Provide Drawings: Send your CAD drawings or physical samples to our engineering team for evaluation.
Receive Factory Quote: We will provide a CNC machining evaluation and bulk OEM quote within 24 hours.
Prototype Approval: A physical sample is produced for your pipeline compatibility testing before mass production.
