TC Butterfly Valves
What are TC Butterfly Valves?
TC Butterfly Valves (Tri-Clamp Butterfly Valves) are sanitary flow control valves designed for hygienic fluid handling in industries such as food & beverage, dairy, pharmaceuticals, and cosmetics. They use a centrally mounted disc to regulate flow, offering quick shut-off and throttling functions with minimal fluid retention.
Asiad Steel Industries is a leading manufacturer and supplier of high-performance TC Butterfly Valves, built to meet global sanitary standards and customized to suit a wide range of flow control applications.
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 48” (DN15 – DN1200) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600, 900, 1500, 2500 |
| PN Ratings | PN6, PN10, PN16, PN25, PN40, PN64 | – |
| Fitting Types | Butterfly Valves | Wafer Type, Lug Type, Double Flanged, Single Flanged, High-Performance Butterfly Valves |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L, SS 321 |
| Standards & Certifications | ASME / ANSI | ASME B16.34 (Valves), ASME B16.5 (Flanged Ends), ASME B16.10 (Face-to-Face) |
| ASTM | ASTM A351 (Cast Stainless Steel), ASTM A182 (Forged Stainless Steel) | |
| European Standards | EN 593, EN 1092 | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175, IBR Approved | |
| Design Features | Body & Disc Design | Wafer, Lug, Double Flanged, High-Performance, Resilient Seated or Metal Seated |
| Seat Material | PTFE, EPDM, Viton, Metal (SS316/SS304) | |
| Stem Type | One-piece or Two-piece Stem, Hollow or Solid | |
| End Connections | Wafer, Lug, Flanged, Threaded, Socket Weld Ends | |
| Wall Thickness | As per ASME B16.34, customized options | |
| Tolerance | As per ASME/ANSI standards | |
| Coating & Surface Finish | Anti-Corrosion Coating | Rust Preventive Oil, Black Oxide, Hot-Dip Galvanized |
| Optional Coatings | Epoxy, PTFE, Polyurethane | |
| Surface Finish | Machined, Pickled, Polished, Passivated | |
| Testing & Inspection | Pressure Testing | Hydrostatic, Pneumatic |
| Non-Destructive Testing | Radiography (RT), Ultrasonic (UT), Magnetic Particle (MPI), Dye Penetrant (DPT) | |
| Destructive Testing | Tensile, Hardness, Impact |
Dimensions
| Nominal Size (NPS / DN) | Face-to-Face Length (L) mm | Flange Diameter (D) mm | Bolt Circle Diameter (BCD) mm | Number of Bolts (n) | Bolt Size (mm) | Valve Height (H) mm | Disc Diameter (mm) |
|---|---|---|---|---|---|---|---|
| ½” / DN15 | 43 | 100 | 70 | 4 | M12 | 90 | 50 |
| ¾” / DN20 | 46 | 110 | 75 | 4 | M12 | 95 | 65 |
| 1” / DN25 | 51 | 115 | 85 | 4 | M12 | 105 | 80 |
| 1½” / DN40 | 57 | 140 | 105 | 4 | M16 | 120 | 100 |
| 2” / DN50 | 65 | 150 | 120 | 4 | M16 | 130 | 125 |
| 2½” / DN65 | 70 | 165 | 135 | 4 | M16 | 140 | 145 |
| 3” / DN80 | 76 | 180 | 150 | 4 | M16 | 150 | 160 |
| 4” / DN100 | 89 | 210 | 180 | 8 | M16 | 170 | 200 |
| 5” / DN125 | 102 | 240 | 210 | 8 | M16 | 190 | 230 |
| 6” / DN150 | 114 | 260 | 225 | 8 | M16 | 210 | 280 |
| 8” / DN200 | 140 | 320 | 285 | 8 | M20 | 260 | 350 |
| 10” / DN250 | 165 | 380 | 340 | 12 | M20 | 310 | 420 |
| 12” / DN300 | 190 | 440 | 395 | 12 | M22 | 350 | 480 |
| 14” / DN350 | 216 | 500 | 450 | 12 | M22 | 390 | 540 |
| 16” / DN400 | 241 | 560 | 505 | 16 | M24 | 440 | 600 |
| 18” / DN450 | 267 | 600 | 565 | 16 | M24 | 480 | 650 |
| 20” / DN500 | 292 | 660 | 620 | 20 | M27 | 530 | 720 |
| 24” / DN600 | 343 | 780 | 730 | 20 | M30 | 620 | 850 |
| 30” / DN750 | 406 | 900 | 840 | 24 | M33 | 710 | 1050 |
| 36” / DN900 | 457 | 1020 | 950 | 28 | M36 | 820 | 1250 |
| 42” / DN1050 | 533 | 1140 | 1060 | 32 | M36 | 930 | 1400 |
| 48” / DN1200 | 610 | 1250 | 1170 | 36 | M39 | 1050 | 1600 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 485 – 750 | MPa (Stainless Steel, SS 304/304L/316/316L/321) |
| Yield Strength | 170 – 450 | MPa |
| Hardness | 120 – 200 | HB (Brinell) |
| Elongation | ≥ 20 – 30 | % |
| Density | 7.8 – 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 | (SS) |
| Thermal Conductivity | 15 – 50 | W/m·K |
| Coefficient of Thermal Expansion | 11 – 17 ×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 | Machined / Polished / Passivated per ASME B16.34 | – |
| Operating Temperature Range | -46 to 600 | °C (material-dependent) |
| Pressure Rating | Class 150, 300, 600, 900, 1500, 2500 | ASME B16.34 Standards |
| Body Design | Wafer / Lug / Flanged | – |
| Disc Material | Stainless Steel (matching body) | – |
| Stem Material | Stainless Steel | – |
| Seal Type | EPDM, PTFE, or Viton (depending on application) | – |
| Actuation | Manual, Gear, or Pneumatic / Electric | – |
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 TC Butterfly Valves
Dairy & Food Processing
Units
Beverage Plants
Pharmaceutical
Cosmetic & Personal
Care
Chemical & Enzyme
Production
Laboratory and Testing
Facilities
Do you have questions?
What is the main advantage of using a butterfly valve in sanitary systems?
Can TC Butterfly Valves be automated?
What seal materials are available for various applications?
Are your butterfly valves compatible with global sanitary fittings?
