🔵 MS Flange – Class 150 Size Chart (ANSI / ASME B16.5)
Commercial Flanges | Manufacturer & Supplier – Iglele – Industrial Goods Le Le 💼📦✨
🔷 Product Overview
IGLELE Mild Steel (MS) Class 150 Flanges are heavy-duty industrial pipe flanges manufactured as per ANSI / ASME B16.5 standards.
These flanges are widely used in oil & gas pipelines, water systems, chemical plants, refineries, fire-fighting networks, HVAC and industrial utilities.
Class 150 flanges are designed for higher pressure and temperature compared to BS10 Table D flanges and are ideal for critical industrial piping systems.
🔷 MS Flange – Class 150 Size Chart
(ANSI / ASME B16.5 – Metric Dimensions used in India)
(ANSI / ASME B16.5 – Metric, Commercial Indian Use)
| NB (Inch) | Pipe OD (mm) | Flange OD (mm) | PCD (mm) | Bolt Holes | Hole Dia (mm) | Thickness (mm) |
|---|---|---|---|---|---|---|
| ½” | 21.3 | 88.9 | 60.3 | 4 | 15.9 | 11.1 |
| ¾” | 26.7 | 98.4 | 69.9 | 4 | 15.9 | 12.7 |
| 1″ | 33.4 | 108.0 | 79.4 | 4 | 15.9 | 14.3 |
| 1¼” | 42.2 | 117.5 | 88.9 | 4 | 15.9 | 15.9 |
| 1½” | 48.3 | 127.0 | 98.4 | 4 | 15.9 | 17.5 |
| 2″ | 60.3 | 152.4 | 120.7 | 4 | 19.1 | 19.1 |
| 2½” | 73.0 | 177.8 | 149.2 | 8 | 19.1 | 20.6 |
| 3″ | 88.9 | 190.5 | 154.9 | 8 | 19.1 | 22.2 |
| 4″ | 101.6 | 228.6 | 177.8 | 8 | 19.1 | 23.8 |
| 5″ | 127.0 | 254.0 | 209.6 | 8 | 22.2 | 25.4 |
| 6″ | 152.4 | 279.4 | 235.0 | 8 | 22.2 | 26.9 |
| 8″ | 219.1 | 342.9 | 292.1 | 8 | 22.2 | 30.2 |
| 10″ | 273.0 | 406.4 | 355.6 | 12 | 25.4 | 33.3 |
| 12″ | 323.9 | 482.6 | 406.4 | 12 | 25.4 | 35.0 |
| 14″ | 355.6 | 533.4 | 457.2 | 12 | 28.6 | 38.1 |
| 16″ | 406.4 | 596.9 | 514.4 | 16 | 28.6 | 41.3 |
| 18″ | 457.2 | 635.0 | 546.1 | 16 | 31.8 | 44.5 |
| 20″ | 508.0 | 698.5 | 609.6 | 20 | 31.8 | 47.6 |
| 24″ | 609.6 | 812.8 | 717.6 | 20 | 35.0 | 53.9 |
| 30″ | 762.0 | 965.2 | 863.6 | 28 | 38.1 | 63.5 |
| 36″ | 914.4 | 1117.6 | 1016.0 | 32 | 41.3 | 69.9 |
(Dimensions as per ANSI / ASME B16.5 Class 150 standard – commonly used in India and international projects)
🔷 Pressure & Temperature Rating
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Pressure Class: Class 150
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Approx. Working Pressure: ~19.6 Bar (285 PSI)
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Temperature Range: Depends on material & gasket selection
Class 150 flanges are suitable for higher pressure and temperature than BS10 Table D (PN10) flanges.
🔷 Applicable Standards
IGLELE Class 150 flanges comply with:
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ANSI / ASME B16.5
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ASTM A36 / ASTM A105 (Material)
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IS 2062 (MS Material)
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DIN / EN / ISO (on request)
🔷 Material & Surface Finish
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Material:
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Mild Steel (IS 2062 / ASTM A36)
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Carbon Steel (ASTM A105 – on request)
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Finish:
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Black finish
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Zinc plated
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Hot Dip Galvanized
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🔷 Flange Types Available
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Slip On (SO)
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Weld Neck (WN)
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Blind
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Socket Weld
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Threaded
🔷 Flange Facing & Bore
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Facing:
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Raised Face (RF) – Standard
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Flat Face (FF) – On request
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Bore:
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Plain bore
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Machined to pipe OD
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As per drawing
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🔷 Gasket Compatibility
| Service | Recommended Gasket |
|---|---|
| Water | Rubber / CNAF |
| Oil | CNAF / PTFE |
| Chemical | PTFE |
| Steam | Spiral Wound |
| Food & Pharma | PTFE / Silicone |
🔷 Installation Guidelines
✔ Clean flange faces
✔ Use correct size gasket
✔ Tighten bolts in cross pattern
✔ Apply proper torque
✔ Conduct hydro / air pressure testing
🔷 Quality & Inspection
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Visual inspection
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Dimensional check
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PMI & Hydro testing available on request
🔷 Important Availability Notice
⚠ IGLELE does not manufacture or stock all flange sizes and types.
Availability depends on size, material, pressure class and standard.
Please confirm with our sales team before placing an order.
🔷 Custom Flange Manufacturing – IGLELE
IGLELE manufactures custom flanges in:
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Mild Steel (MS)
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Stainless Steel (SS 304 / 316 / 316L)
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Carbon Steel
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Alloy Steel
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Duplex & Super Duplex
We supply:
✔ Non-standard sizes
✔ Special PCD & OD
✔ Heavy-duty thickness
✔ Drawing-based & OEM flanges
🔷 How to Order
To quote correctly, please share:
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Size (NB / Inch)
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Pressure Class (Class 150 / 300 / etc.)
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Flange Type (SO / WN / BL)
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Facing (RF / FF)
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Quantity
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Application
🔵 Order Now – Contact IGLELE
📞 Call Now: +91 9800150888
📧 sales@iglele.com
🌐 www.iglele.com
Iglele – Industrial Goods Le Le 💼📦✨
Your trusted manufacturer and global supplier of MS flanges, SS flanges, pipe fittings and custom-engineered industrial components.
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