Dairy Bends
What are Dairy Bends?
Dairy Bends are curved sanitary fittings used to redirect flow in hygienic piping systems. These bends are engineered for 90°, 45°, and customized angles to ensure smooth fluid transfer while minimizing turbulence and dead zones. Crafted from SS 304 / 316L, they are suitable for critical clean applications in dairy, beverages, pharmaceuticals, and food industries.
Asiad Steel Industries is a premier manufacturer and supplier of dairy bends that meet international sanitary standards, offering both weld and clamp end options with polished internal finishes.
Key Features
Leak-Proof
Jointing
Sanitary
Design
Easy to
Clean
Standards
Compliant
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Pipe Size (NPS) | ½” to 12” (DN15 – DN300) |
| Pressure Ratings | Class 150, 300 | |
| PN Ratings | PN6, PN10, PN16, PN25 | |
| Fitting Types | Dairy Bend Configurations | 45°, 90°, 180° Bends (Long Radius LR, Short Radius SR) |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L |
| Other Materials | Titanium (Grade 2, Grade 5), Monel 400/K500 (optional) | |
| Standards & Certifications | ASME / ANSI | ASME BPE (Bioprocessing Equipment), ASME B16.9 (optional for larger sizes) |
| ASTM | ASTM A270, ASTM A403 | |
| European Standards | EN 10357 (Sanitary Fittings) | |
| Certifications | ISO 9001, 3A Sanitary Standards, FDA Compliant | |
| Design Features | Wall Thickness | As per ASME BPE (standard and customized options) |
| Bend Radius | Short Radius (SR), Long Radius (LR) | |
| End Connections | Butt Welded Ends, Tri-Clover / Clamp Ends, Socket Weld Ends | |
| Tolerance | As per ASME BPE / 3A standards | |
| Coating & Surface Finish | Anti-Corrosion Coating | Passivated, Rust Preventive Oil |
| Optional Coatings | Polished, Electropolished | |
| Surface Finish | Ra ≤ 0.8 μm, Polished, Pickled, Passivated | |
| Testing & Inspection | Pressure Testing | Hydrostatic, Pneumatic |
| Non-Destructive Testing | Radiography (RT), Ultrasonic (UT), Dye Penetrant (DPT) | |
| Destructive Testing | Tensile, Hardness, Impact | |
| Hygienic Features | Internal Finish | Smooth, crevice-free internal surface to prevent bacterial growth |
| Cleanability | CIP (Clean-in-Place) compatible design |
Dimensions
| Nominal Pipe Size (NPS) | OD (Outside Diameter) (mm) | Center-to-End (Straight Run) (mm) | Bend Radius (mm) | Wall Thickness (mm) | End Connection Type | Typical Clamp Size (mm) |
|---|---|---|---|---|---|---|
| ½” | 21.3 | 60 | 38 | 2.0 – 2.5 | Tri-Clover / Butt Weld | ½” |
| ¾” | 26.7 | 70 | 45 | 2.0 – 2.5 | Tri-Clover / Butt Weld | ¾” |
| 1” | 33.4 | 80 | 57 | 2.0 – 2.5 | Tri-Clover / Butt Weld | 1” |
| 1½” | 48.3 | 100 | 76 | 2.5 – 3.0 | Tri-Clover / Butt Weld | 1½” |
| 2” | 60.3 | 120 | 89 | 2.5 – 3.0 | Tri-Clover / Butt Weld | 2” |
| 2½” | 73.0 | 140 | 108 | 3.0 | Tri-Clover / Butt Weld | 2½” |
| 3” | 88.9 | 160 | 127 | 3.0 | Tri-Clover / Butt Weld | 3” |
| 4” | 114.3 | 200 | 152 | 3.0 – 3.5 | Tri-Clover / Butt Weld | 4” |
| 6” | 168.3 | 280 | 229 | 3.5 – 4.0 | Tri-Clover / Butt Weld | 6” |
| 8” | 219.1 | 350 | 292 | 4.0 | Tri-Clover / Butt Weld | 8” |
| 10” | 273.0 | 420 | 356 | 4.0 – 5.0 | Tri-Clover / Butt Weld | 10” |
| 12” | 323.9 | 500 | 406 | 5.0 | Tri-Clover / Butt Weld | 12” |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 485 – 620 | MPa (Stainless Steel 304/316, Titanium, Monel) |
| Yield Strength | 170 – 310 | MPa |
| Hardness | 150 – 200 | HB (Brinell) |
| Elongation | ≥ 30 | % |
| Density | 7.9 | g/cm³ |
| Impact Toughness | ≥ 60 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 250 – 300 | MPa |
| Corrosion Resistance | Excellent (Food-grade SS 304/316, Titanium) | – |
| Thermal Conductivity | 16 – 25 | W/m·K |
| Coefficient of Thermal Expansion | 16 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.35 – 0.50 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Brinell Hardness Range | 150 – 200 | HB |
| Surface Finish | Ra ≤ 0.8 μm, Polished, Pickled, Passivated | – |
| End Connection Type | Tri-Clover Clamp Ends / Butt Welded Ends / Socket Weld Ends | – |
| Operating Temperature Range | -50 to 150 | °C (material-dependent, hygienic design) |
| Pressure Rating | 150 psi (standard sanitary rating) | ASME BPE / 3A Standards |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
Applications of Dairy Bends
Dairy & Milk Processing
Units
Beverage Plants
Pharmaceutical
Food Processing &
Edible Oil Units
Chemical & Enzyme
Production
Dairy R&D and Quality
Testing Labs
Do you have questions?
Do dairy bends support automated cleaning systems?
Can bends be made in non-standard angles?
Are both clamp and welded ends available?
What surface finish is best for dairy applications?
