Tri-Clover Fittings & Valves
What are Tri-Clover Fittings & Valves?
Tri-Clover Fittings & Valves, also known as Tri-Clamp or Sanitary Clamp Fittings, are specialized hygienic components designed for high-purity fluid systems. These fittings use a clamp connection and gasket seal to create a smooth, crevice-free, and leak-proof assembly ideal for sanitary processing. Commonly used in food, dairy, beverage, pharmaceutical, and biotech industries.
Asiad Steel Industries is a trusted supplier of Tri-Clover Fittings and Valves, offering precision-engineered solutions in SS 304 and SS 316L for hygienic applications worldwide.
Key Features
Leak-Proof
Jointing
Sanitary
Design
Easy to
Clean
Standards
Compliant
Corrosion
Resistant
Types of Tri-Clover Fittings & Valves
Tri-Clover Fittings – Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Sizes | ½″ to 12″ (DN15 – DN300) |
| Custom Sizes | Available on request | |
| Standards | International Standards | 3A, ASTM A270, BS 4825, ISO 2852, DIN 32676 |
| Fitting Types | Standard Fittings | TC Elbows, Bends, Tees, Reducers, Unions, Ferrules, Clamp |
| End Connections | Options | Tri-Clover Clamp Ends, Butt-Weld Ends, Threaded Ends (BSP/NPT) |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L (per ASTM A240 / A276 / A270) |
| Manufacturing Method | CNC Machined, Investment Casting, Forged | |
| Surface Finish | Internal Finish | Ra ≤ 0.4 µm (15 µin) – Electropolished |
| External Finish | Ra ≤ 0.8 µm (30 µin) – Polished / Passivated | |
| Seal Materials | Elastomers | EPDM, Silicone, Viton, PTFE (FDA & USP Class VI Compliant) |
| Working Pressure | Clamp Fittings | Up to 10 bar (145 psi) |
| Welded Ends | Up to 16 bar (232 psi) | |
| Working Temperature | Range | −20 °C to +150 °C (up to +200 °C with PTFE seals) |
| Testing & Certification | Quality Checks | PMI Test, Hydrostatic Test, Surface Roughness Test |
| Certifications | EN 10204 3.1/3.2, FDA, CE, ISO, 3A | |
| Applications | Industries | Dairy, Food Processing, Beverage, Pharmaceutical, Biotech, Cosmetics |
Tri-Clover Valves – Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Valve Types | Range | Butterfly Valves, Ball Valves, Non-Return Valves, Gate Valves, Globe Valves |
| Size Range | Nominal Sizes | ½″ to 12″ (DN15 – DN300) |
| Custom Sizes | Available on request | |
| Standards | International Standards | 3A, ASTM A270, BS 4825, ISO 2852, DIN 32676 |
| End Connections | Options | Tri-Clover Clamp Ends, Butt-Weld Ends, Threaded Ends |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L |
| Valve Seats / Seals | EPDM, Silicone, Viton, PTFE (FDA Approved) | |
| Surface Finish | Internal Finish | Ra ≤ 0.4 µm – Electropolished |
| External Finish | Ra ≤ 0.8 µm – Polished | |
| Working Pressure | Standard | 6–10 bar (depending on valve type & size) |
| Working Temperature | Range | −20 °C to +150 °C (higher with PTFE seals) |
| Testing & Certification | Quality Checks | Hydrostatic & Pneumatic Testing, Torque & Seal Integrity Test |
| Certifications | EN 10204 3.1/3.2, FDA, CE, ISO, 3A | |
| Applications | Industries | Dairy, Brewery, Beverage, Pharmaceutical, Food Processing, Biotech |
Tri-Clover Pipe Fittings Dimensions (ASTM A270 / DIN 11850 / ISO 2037)
| Fitting Type | Tube OD (inch / mm) | Wall Thickness (mm) | Center-to-End (mm) | Standards |
|---|---|---|---|---|
| 45° Elbow | 1″ (25.4), 1½″ (38.1), 2″ (50.8), 3″ (76.2), 4″ (101.6), up to 12″ (304.8) | 1.2 / 1.5 / 2.0 | As per ISO / DIN | 3A, DIN 11850, ISO 2037 |
| 90° Elbow | 1″ to 12″ (DN25 – DN300) | 1.2 / 1.5 / 2.0 | R = 1D / 1.5D / 2D | 3A, DIN 11850 |
| 180° U-Bend | 1″ to 6″ | 1.2 / 1.5 / 2.0 | Standard & Custom Radius | ISO 2037, BS 4825 |
| Equal Tee | 1″ to 12″ | 1.2 / 1.5 / 2.0 | Standard (DIN/ISO) | 3A, DIN 11850 |
| Reducing Tee | Run: 1″ to 12″; Branch: ½″ to 10″ | 1.2 / 1.5 / 2.0 | As per the Standard | 3A, DIN |
| Cross (Equal) | 1″ to 6″ | 1.2 / 1.5 | Standard Dimensions | 3A, DIN 11850 |
| Concentric Reducer | 1½″ × 1″, 2″ × 1″, 3″ × 2″, up to 12″ × 10″ | 1.2 / 1.5 / 2.0 | Length as per DIN/ISO | ISO 2037, 3A |
| Eccentric Reducer | 1½″ × 1″, 2″ × 1½″, 3″ × 2″, etc. | 1.2 / 1.5 / 2.0 | Standard | 3A / DIN |
| Stub Ends / Ferrules Welded | ½″ to 12″ | 1.2 / 1.5 / 2.0 | Ferrule OD: 25.0 – 335.0 mm | ISO 2852, DIN 32676 |
Tri-Clamp Fittings Dimensions (ASME BPE / ISO / DIN Standards)
| Tube Size (Inch) | Tube OD (mm) | Ferrule OD (mm) | Clamp Size | Gasket Seat ID (mm) | Standard |
|---|---|---|---|---|---|
| ½″ | 12.7 | 25.0 | 1″ | 9.5 | ISO 2852 / DIN 32676 |
| ¾″ | 19.05 | 25.0 | 1″ | 16.0 | ISO 2852 / DIN 32676 |
| 1″ | 25.4 | 50.5 | 1.5″ | 22.1 | 3A / BS 4825 / DIN 32676 |
| 1½″ | 38.1 | 50.5 | 1.5″ | 34.8 | 3A / BS 4825 |
| 2″ | 50.8 | 64.0 | 2″ | 47.5 | 3A / ISO 2852 |
| 2½″ | 63.5 | 77.5 | 2.5″ | 60.2 | 3A / DIN 32676 |
| 3″ | 76.2 | 91.0 | 3″ | 72.9 | 3A / BS 4825 |
| 3½″ | 89.0 | 106.0 | 3.5″ | 85.7 | Custom / ISO |
| 4″ | 101.6 | 119.0 | 4″ | 98.6 | 3A / DIN 32676 |
| 4½″ | 114.3 | 130.0 | 4.5″ | 111.0 | Custom |
| 5″ | 127.0 | 155.0 | 5″ | 123.5 | 3A / ISO |
| 6″ | 152.4 | 183.0 | 6″ | 149.0 | 3A / BS 4825 |
| 8″ | 203.2 | 233.0 | 8″ | 200.0 | 3A / DIN 32676 |
| 10″ | 254.0 | 285.0 | 10″ | 250.0 | 3A / Custom |
| 12″ | 304.8 | 335.0 | 12″ | 300.0 | 3A / Custom |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 500 – 650 | MPa |
| Yield Strength | 200 – 320 | MPa |
| Hardness | ≤ 210 | HB (Brinell) |
| Elongation | ≥ 35 | % |
| Density | 7.9 | g/cm³ |
| Impact Toughness | ≥ 70 | J (Charpy) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 260 – 320 | MPa |
| Corrosion Resistance | Excellent (Food-grade SS 304/316L) | – |
| Thermal Conductivity | 15 – 25 | W/m·K |
| Coefficient of Thermal Expansion | 16 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.38 – 0.52 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Brinell Hardness Range | 160 – 210 | HB |
| Surface Finish | Ra ≤ 0.6 | μm (Hygienic grade) |
| Operating Temperature Range | -60 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 |
Do you have questions?
Why are Tri-Clover fittings preferred in sanitary industries?
Can Tri-Clover valves handle vacuum conditions?
Are replacement gaskets and clamps available?
Do you offer customized solutions or non-standard sizes?
