Two-Way Plug Valves
What are Two-Way Plug Valves?
Two-Way Plug Valves are quarter-turn valves designed for quick and reliable shut-off in dairy processing systems. These valves consist of a cylindrical or conical plug with a straight passage that allows flow in one direction and seals off completely when rotated 90 degrees. Their hygienic construction ensures smooth flow and zero contamination, making them ideal for milk, cream, yogurt, and similar fluid transfer.
Asiad Steel Industries is a leading manufacturer and supplier of high-performance Two-Way Plug Valves engineered for dairy-grade reliability and CIP/SIP compatibility.
Key Features
Leak-Proof
Jointing
Sanitary
Design
Easy to
Clean
Standards
Compliant
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Size | ½” to 6″ (custom sizes available) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600 |
| PN Ratings | PN10, PN16, PN25, PN40 | |
| Valve Type | Product Type | Two-Way Plug Valve, Hygienic / Sanitary Design |
| Material Options | Body & Plug | 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 | Socket Weld, Butt Weld, Tri-Clamp, Flanged |
| Flow Type | Two-Way, Bi-Directional | |
| Operating Temperature | -20°C to 180°C (depending on seal material) | |
| Surface Finish | Ra ≤ 0.8 µm (internal), Polished / Pickled 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 | Dye Penetrant (DPT), Visual Inspection | |
| Destructive Testing | Torque Test, Seal Integrity Test | |
| Operating Features | Operation | Manual Lever, Pneumatic or Electric Actuation Optional |
| 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) | Bore Diameter (D) | Weight per Piece |
|---|---|---|---|---|---|
| Two-Way Plug Valve | ½” (15 mm) | 95 mm | 120 mm | 15 mm | 1.2 kg |
| Two-Way Plug Valve | ¾” (20 mm) | 105 mm | 135 mm | 20 mm | 1.6 kg |
| Two-Way Plug Valve | 1″ (25 mm) | 120 mm | 150 mm | 25 mm | 2.2 kg |
| Two-Way Plug Valve | 1½” (40 mm) | 140 mm | 175 mm | 40 mm | 3.5 kg |
| Two-Way Plug Valve | 2″ (50 mm) | 160 mm | 195 mm | 50 mm | 5.0 kg |
| Two-Way Plug Valve | 3″ (80 mm) | 200 mm | 250 mm | 80 mm | 8.0 kg |
| Two-Way Plug Valve | 4″ (100 mm) | 250 mm | 300 mm | 100 mm | 12 kg |
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 / Pickled external | – |
| Operating Temperature Range | -20 to 180 | °C (depending on seal material) |
| Pressure Rating | Class 150, 300, 600 / PN10 – PN40 | ASME B16.34 / EN Standards |
| Leakage Rate | Bubble tight | API 598 |
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 Two-Way Plug Valves
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What makes two-way plug valves suitable for dairy?
Can they be operated automatically?
Are replacement parts available?
Do they support both welding and clamp connections?
