Dairy Nut
What are Nuts?
A Dairy Nut is a precision-machined sanitary fitting used extensively in dairy, food, and beverage processing industries. Designed to ensure leak-proof connections in hygienic pipelines, dairy nuts are used alongside ferrules, liners, and gaskets to form tight, reliable joints in clean-in-place (CIP) systems.
Asaid Steel Industries is a trusted Dairy Nut supplier, offering quality-assured products that meet industry hygiene and dimensional standards.
Key Features
Strong
Grip
Sanitary
Design
Easy to
Clean
Standards
Compliant
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Size | ¼” to 4” (DN8 – DN100) |
| Pressure Ratings | Class 150, 300 | |
| PN Ratings | PN6, PN10, PN16, PN25 | |
| Fitting Types | Dairy Nut Types | Hex Nut, Coupling Nut, Clamp Nut |
| 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, ASME B18.2.2 (hex nuts), 3A Sanitary Standards |
| ASTM | ASTM A193, ASTM A194 (for high-pressure applications) | |
| European Standards | EN 10241 (Threaded fittings) | |
| Certifications | ISO 9001, 3A Sanitary Standards, FDA Compliant | |
| Design Features | Thread Type | BSP, NPT, or ISO Metric Thread |
| End Connections | Tri-Clover / Clamp Nut 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 | Dye Penetrant (DPT) for thread integrity | |
| Destructive Testing | Tensile, Hardness, Impact | |
| Hygienic Features | Internal Finish | Smooth, crevice-free threads to prevent bacterial growth |
| Cleanability | CIP (Clean-in-Place) compatible design |
Dimensions
| Nominal Size (NPS) | OD (Outside Diameter) (mm) | Thread Length (mm) | Wall Thickness (mm) | End Connection Type | Typical Clamp Size (mm) |
|---|---|---|---|---|---|
| ¼” | 12.7 | 10 | 2.0 | Tri-Clover Clamp Nut | ¼” |
| ½” | 21.3 | 12 | 2.0 – 2.5 | Tri-Clover Clamp Nut | ½” |
| ¾” | 26.7 | 14 | 2.0 – 2.5 | Tri-Clover Clamp Nut | ¾” |
| 1” | 33.4 | 16 | 2.0 – 2.5 | Tri-Clover Clamp Nut | 1” |
| 1½” | 48.3 | 18 | 2.5 – 3.0 | Tri-Clover Clamp Nut | 1½” |
| 2” | 60.3 | 20 | 2.5 – 3.0 | Tri-Clover Clamp Nut | 2” |
| 2½” | 73.0 | 22 | 3.0 | Tri-Clover Clamp Nut | 2½” |
| 3” | 88.9 | 25 | 3.0 | Tri-Clover Clamp Nut | 3” |
| 4” | 114.3 | 28 | 3.0 – 3.5 | Tri-Clover Clamp Nut | 4” |
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 | – |
| Thread Type | BSP, NPT, or ISO Metric | – |
| End Connection Type | Tri-Clover Clamp Nut / Clamp Ends | – |
| Operating Temperature Range | -50 to 150 | °C (material-dependent, hygienic design) |
| Pressure Rating | 150 psi (standard sanitary rating) | ASME BPE / 3A Standards |
Applications of Dairy Nuts
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?
What is the use of a Dairy Nut in process piping?
Are Dairy Nuts reusable?
Can Dairy Nuts handle high-temperature operations?
Do Dairy Nuts fit with all union standards?
