Dairy Fittings and Valves
What are Dairy Fittings and Valves?
Dairy fittings and valves are precision-engineered components used to connect, control, and regulate fluid flow in sanitary process systems. Designed specifically for industries like dairy, food processing, beverages, pharmaceuticals, and biotechnology, these fittings ensure contamination-free fluid transfer with smooth, crevice-free interiors.
Asiad Steel Industries is a leading manufacturer, supplier, and exporter of high-quality dairy fittings and valves, delivering leak-proof performance, ease of cleaning, and long service life for sterile and hygienic applications.
Key Features
Leak-Proof
Jointing
Sanitary
Design
Easy to
Clean
Standards
Compliant
Corrosion
Resistant
Types of Dairy Fittings and Valves
Dairy Fittings – Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Bore Sizes | ½” to 6” (DN15 – DN150) |
| Custom Sizes | Available on request | |
| Material Options | Stainless Steel Grades | SS 304, SS 304L, SS 316, SS 316L (with low carbon for hygienic applications) |
| Fitting Types | Standard Fittings | Dairy Bends (90°, 45°), Tees, Reducers, Unions, Ferrules, End Caps |
| Hygienic Connections | SMS Unions, DIN Unions, IDF Unions, RJT Unions | |
| Standards & Certifications | International Standards | DIN 11850, ISO 2852, SMS 1145, BS 4825, 3A Sanitary Standards |
| Certifications | FDA Approved, ISO 9001, EHEDG Compliant | |
| Surface Finish | Internal Finish | Mirror Polished (0.4 Ra to 0.8 Ra for hygienic use) |
| External Finish | Polished, Matte, or Bead Blast | |
| Design Features | Welding Ends | Butt Weld, Tri-Clamp, Socket Weld |
| Sealing Options | EPDM, NBR, Silicone, PTFE gaskets (FDA grade) | |
| Applications | Industries | Dairy, Food & Beverage, Pharmaceutical, Biotech |
| Testing & Inspection | Tests Conducted | Hydrostatic, Pneumatic, Visual, Dimension Check |
| Certification | EN 10204 3.1 / 3.2, Material Test Certificates (MTC) |
Dairy Valves – Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Bore Sizes | ½” to 48” (DN15 – DN1200) |
| Custom Sizes | Available for special projects | |
| Valve Types | Shut-Off Valves | Gate Valve, Globe Valve, Ball Valve, Butterfly Valve, Plug Valve |
| Control Valves | Needle Valve, Diaphragm Valve | |
| Special Valves | Check Valve (Swing, Lift, Dual Plate), Pressure Relief Valve, Safety Valve, Non-Return Valve | |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L, SS 321 |
| Carbon Steel | ASTM A216 WCB, ASTM A105 | |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600, 900, 1500, 2500 |
| PN Ratings | PN6 to PN64 | |
| End Connections | Types | Flanged (RF, FF, RTJ), Butt Weld, Socket Weld, Threaded, Tri-Clamp (for hygienic valves) |
| Standards & Certifications | API Standards | API 600 (Gate), API 602 (Compact), API 609 (Butterfly), API 608 (Ball Valves) |
| ASME / ANSI | ASME B16.34, ASME B16.10 (Face-to-Face), ASME B16.5 (Flanged Ends) | |
| ISO / DIN Standards | ISO 5208, DIN EN 593, DIN EN 12266 | |
| Certifications | ISO 9001, CE Marked, PED 2014/68/EU, IBR Approved | |
| Coating & Surface Finish | External Coatings | Epoxy Coating, PTFE Coating, Zinc Plated, Black Oxide |
| Internal Coatings | Glass Lined, Rubber Lined (on request) | |
| Testing & Inspection | Pressure Testing | Hydrostatic, Pneumatic |
| Functional Testing | Seat Leakage, Operational Test | |
| NDT Methods | Radiography (RT), Ultrasonic (UT), Magnetic Particle (MPI), Dye Penetrant (DPT) | |
| Certification Provided | EN 10204 3.1 / 3.2, MTC as per standards |
Dimensions
| Type | Nominal Size (DN) | OD / Tube Dia (mm) | Length / Height (mm) | Wall Thickness (mm) | Connection Type | Standard |
|---|---|---|---|---|---|---|
| Elbow (90° / 45°) | 10 | 16 | 50 | 1.0 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Elbow (90° / 45°) | 15 | 19 | 55 | 1.0 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Elbow (90° / 45°) | 20 | 25 | 65 | 1.2 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Elbow (90° / 45°) | 25 | 32 | 75 | 1.2 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Tee (Equal / Reducing) | 10 | 16 | 60 | 1.0 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Tee (Equal / Reducing) | 15 | 19 | 70 | 1.0 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Tee (Equal / Reducing) | 20 | 25 | 80 | 1.2 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Tee (Equal / Reducing) | 25 | 32 | 90 | 1.2 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Reducer (Concentric / Eccentric) | 10 × 8 | 16 → 12.7 | 55 | 1.0 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Reducer (Concentric / Eccentric) | 15 × 10 | 19 → 16 | 60 | 1.0 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Reducer (Concentric / Eccentric) | 20 × 15 | 25 → 19 | 70 | 1.2 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Reducer (Concentric / Eccentric) | 25 × 20 | 32 → 25 | 80 | 1.2 | Clamp / Butt Weld | DIN 11850 / SMS 3008 |
| Butterfly Valve (Sanitary) | 10 | 16 | 80 | 1.0 | Clamp / Tri-Clamp | DIN 11850 / ISO 1127 |
| Butterfly Valve (Sanitary) | 15 | 19 | 90 | 1.0 | Clamp / Tri-Clamp | DIN 11850 / ISO 1127 |
| Butterfly Valve (Sanitary) | 20 | 25 | 100 | 1.2 | Clamp / Tri-Clamp | DIN 11850 / ISO 1127 |
| Butterfly Valve (Sanitary) | 25 | 32 | 110 | 1.2 | Clamp / Tri-Clamp | DIN 11850 / ISO 1127 |
| Ball Valve (Sanitary) | 10 | 16 | 80 | 1.0 | Clamp / Tri-Clamp | DIN 11850 / ISO 1127 |
| Ball Valve (Sanitary) | 15 | 19 | 90 | 1.0 | Clamp / Tri-Clamp | DIN 11850 / ISO 1127 |
| Ball Valve (Sanitary) | 20 | 25 | 100 | 1.2 | Clamp / Tri-Clamp | DIN 11850 / ISO 1127 |
| Ball Valve (Sanitary) | 25 | 32 | 110 | 1.2 | Clamp / Tri-Clamp | DIN 11850 / ISO 1127 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 485 – 620 | MPa |
| Yield Strength | 170 – 310 | MPa |
| Hardness | ≤ 200 | HB (Brinell) |
| Elongation | ≥ 30 | % |
| Density | 7.9 | g/cm³ |
| Impact Toughness | ≥ 60 | J (Charpy) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 250 – 300 | MPa |
| Corrosion Resistance | Excellent | Food-grade SS 304/316 |
| Thermal Conductivity | 16 – 25 | W/m·K |
| Coefficient of Thermal Expansion | 16 – 17 x10⁻⁶ | /°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 |
| Operating Temperature Range | -50 to 400 | °C |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| 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 |
| 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 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
Applications of Dairy Fittings and Valves
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?
Are dairy fittings suitable for high-temperature cleaning processes?
Do you supply dairy valves with certifications?
Can I get fittings in polished or electro-polished finishes?
What’s the difference between SMS, DIN, and IDF unions?
