Dairy Butterfly Valves
What are Dairy Butterfly Valves?
Dairy Butterfly Valves are rotary motion valves used to regulate and isolate fluid flow within dairy and sanitary processing systems. Featuring a disc that rotates 90° to open or close the flow path, these valves are known for their compact design, quick operation, and low-pressure drop. They are ideal for handling milk, cream, whey, and cleaning agents in hygienic environments.
Asiad Steel Industries is a trusted manufacturer and exporter of premium-grade Butterfly Valves engineered specifically for dairy and food-grade applications, offering Tri-Clamp, SMS, and DIN end connections.
Key Features
Leak-Proof
Operation
Sanitary
Design
Easy to
Clean
Standards
Compliant
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Size | 2″ to 12″ (50 mm – 300 mm, custom sizes available) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300 |
| PN Ratings | PN10, PN16, PN25 | |
| Valve Type | Product Type | Butterfly Valve, Hygienic / Sanitary Design |
| Material Options | Body & Disc | Stainless Steel SS304, SS316, SS316L |
| Seals / Gaskets | EPDM, PTFE, Silicone (Food Grade) | |
| Standards & Certifications | ASTM | ASTM A351, ASTM A182 |
| ASME / ANSI | ASME B16.34, ASME BPE | |
| European Standards | EN 1092, ISO 2852 | |
| Certifications | 3A Sanitary, FDA, ISO 9001, CE Marked | |
| Design Features | End Connections | Wafer, Lug, Flanged, Tri-Clamp |
| Flow Type | Bi-Directional, Quarter-Turn Operation | |
| Operating Temperature | -20°C to 180°C (depending on seal material) | |
| Surface Finish | Ra ≤ 0.8 µm internal, Polished external | |
| Tolerance | Dimensional Tolerance | As per ASME BPE / EN Standards |
| Coating & Surface Finish | Anti-Corrosion | Passivation, Electro-Polished |
| Optional Coatings | PTFE Coating, Nickel Plating | |
| Testing & Inspection | Pressure Testing | Hydrostatic, Pneumatic |
| Non-Destructive Testing | Visual, Dye Penetrant (DPT) | |
| Destructive Testing | Torque Test, Seal Integrity Test | |
| Operating Features | Operation | Manual Lever, Gear, Pneumatic or Electric Actuation |
| Leakage Rate | Bubble Tight / Zero Leakage as per API 598 |
Dimensions
| Valve Type | Nominal Size (DN / NPS) | Face-to-Face (L) | End-to-End (H) | Disc Diameter (D) | Weight per Piece |
|---|---|---|---|---|---|
| Butterfly Valve | 2″ (50 mm) | 65 mm | 90 mm | 50 mm | 2.5 kg |
| 3″ (80 mm) | 80 mm | 115 mm | 80 mm | 4.0 kg | |
| 4″ (100 mm) | 95 mm | 135 mm | 100 mm | 5.5 kg | |
| 6″ (150 mm) | 120 mm | 165 mm | 150 mm | 8.0 kg | |
| 8″ (200 mm) | 140 mm | 190 mm | 200 mm | 12 kg | |
| 10″ (250 mm) | 160 mm | 220 mm | 250 mm | 18 kg | |
| 12″ (300 mm) | 180 mm | 250 mm | 300 mm | 24 kg |
Notes:
- Nominal Size & Disc Diameter: Determines pipe compatibility and flow area.
- Face-to-Face & End-to-End: Ensures proper installation and alignment in tanker or dairy piping.
- Weight per Piece: Guides handling, planning, and logistics.
- Valve Type & Operation: Butterfly valves offer quarter-turn flow control, suitable for hygienic applications.
- Surface Finish & Material: Ra ≤ 0.8 µm and SS316L ensures sanitary compliance and corrosion resistance.
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 485 – 750 | MPa (SS304 / SS316 / SS316L) |
| Yield Strength | 170 – 450 | MPa |
| Hardness | 120 – 200 | HB (Brinell) |
| Elongation | ≥ 20 – 30 | % |
| Density | 7.9 – 8.0 | g/cm³ |
| Impact Toughness | ≥ 27 – 70 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 250 – 450 | MPa |
| Corrosion Resistance | Excellent (SS316L > SS316 > SS304) | – |
| Thermal Conductivity | 15 – 25 | W/m·K |
| Coefficient of Thermal Expansion | 16 – 18 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.40 – 0.65 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Brinell Hardness Range | 120 – 200 | HB |
| Surface Finish | Ra ≤ 0.8 µm internal, Polished external | – |
| Operating Temperature Range | -20 to 180 | °C (depending on seal material) |
| Pressure Rating | Class 150, 300 / PN10 – PN25 | ASME B16.34 / EN Standards |
| Leakage Rate | Bubble tight | API 598 |
Chemical Composition
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Manganese (Mn) | ≤ 2.00 |
| Carbon (C) | ≤ 0.03 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
Weight
| Valve Size (Inch) | Type | Approx. Weight (kg) |
|---|---|---|
| 1” | Manual Clamp End | 1.9 |
| 1.5” | Pneumatic SMS End | 3.2 |
| 2” | Manual Weld End | 4.0 |
| 3” | Pneumatic Clamp | 6.0 |
Applications of Dairy Butterfly 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?
Can butterfly valves handle cleaning fluids?
What type of actuator can be used?
Are seals replaceable?
Can I get butterfly valves in SMS and DIN connections?
