Dairy Union
Dairy Union Pipe Fitting
Emirerri Steel is a trusted manufacturer and supplier of high-quality Dairy Union, designed for hygienic and secure connections in dairy, food, beverage, and pharmaceutical process lines.
Our Stainless Steel Dairy Unions ensure smooth, leak-proof joints between pipes and fittings, allowing for easy assembly, disassembly, and cleaning — essential for maintaining sanitary standards in processing plants.
Each Dairy Union is engineered with precision to meet global sanitary standards such as 3A, DIN, SMS, ISO, and IDF, ensuring compatibility with international hygienic systems.
Key Features
Hygienic & Leak-Proof Design: Provides a contamination-free flow path for dairy and food products.
High Corrosion Resistance: Made from superior grades of Stainless Steel 304, 304L, 316, and 316L.
Ease of Installation: Enables quick assembly and dismantling for cleaning and maintenance.
Durable Construction: Designed to withstand pressure, vibration, and repeated CIP (Clean-In-Place) operations.
Smooth Polished Surface: Prevents bacterial growth and ensures easy sterilization.
Interchangeable Design: Compatible with multiple sanitary fitting standards (DIN, SMS, IDF, etc.).
Types of Dairy Unions
Emirerri Steel offers a complete range of Stainless Steel Dairy Unions to suit various industry standards and process applications:
SMS Union (Swedish Manufacturing Standard)
DIN Union (German Standard)
IDF Union (International Dairy Federation)
3A Union (Sanitary Standard for Food & Dairy Equipment)
RJT Union (Ring Joint Type – British Standard)
Tri-Clamp / TC Union
Butt Weld Union
Plain End Union
All types are available with different sealing materials such as EPDM, Nitrile, Silicone, or PTFE, based on process requirements.
Standard & Grade
| Standard | Description | Industry / Origin |
|---|---|---|
| 3A Standard | U.S. sanitary standard for dairy and food fittings | Dairy & Food Industry |
| DIN 11851 / 11852 | German sanitary fittings standard | Food, Beverage & Chemical |
| SMS 1145 / 3017 | Swedish manufacturing standard | Dairy & Beverage |
| IDF Standard | International Dairy Federation | Milk and dairy processing |
| RJT Standard | British sanitary fitting standard | Food & Brewing |
| ISO 2852 | International sanitary standard | Global hygienic applications |
Material Grades
| Grade | ASTM Standard | Key Features |
|---|---|---|
| SS 304 | ASTM A182 / A403 | Good corrosion resistance and weldability |
| SS 304L | ASTM A182 / A403 | Low carbon grade for easy welding and hygiene |
| SS 316 | ASTM A182 / A403 | Superior resistance to acids and chlorides |
| SS 316L | ASTM A182 / A403 | Best suited for high-purity and pharmaceutical use |
Finish Options: Mirror Polish (Ra ≤ 0.4 μm) or Electro-Polished (for pharma-grade applications)
Dimensions
| Nominal Size (Inch) | Ferrule OD (mm) | Nut OD (mm) | Union Type |
|---|---|---|---|
| ½” | 25.4 | 34 | SMS / IDF |
| ¾” | 25.4 | 34 | SMS / DIN |
| 1″ | 38.1 | 50.5 | SMS / IDF |
| 1½” | 50.8 | 64 | DIN / 3A |
| 2″ | 63.5 | 77.5 | SMS / RJT |
| 2½” | 76.2 | 91 | DIN / 3A |
| 3″ | 101.6 | 119 | RJT / 3A |
| 4″ | 152.4 | 167 | DIN / 3A |
Dimensions may vary depending on standard (DIN, SMS, IDF, or 3A). Custom sizes are available upon request.
Applications
Dairy Processing Plants – Milk, cream, butter, and cheese production lines
Food & Beverage Industry – Breweries, soft drinks, and juice manufacturing
Pharmaceutical Industry – Sterile piping systems for cleanroom operations
Biotechnology & Cosmetic Plants – Hygienic transfer of sensitive materials
Chemical & Water Treatment – For high-purity and sanitary flow applications