Our Product
MS Weld Neck Flange (WNRF)
Product Overview
MS Weld Neck Flange (WNRF)
Overview
High-strength MS Weld Neck Flanges (WNRF) designed for critical, high-pressure, and high-temperature applications. Conforms to ASME B16.5 and IS 2062 standards, ensuring optimal flow and structural integrity.
- Manufactured from premium-quality mild steel
- Long tapered neck for stress reduction
- Precision-machined sealing face
- Excellent pressure and temperature resistance
- Strong welded connection
- Accurate dimensions for easy installation
- Long service life with minimal maintenance
Dimension Details
| Nominal Pipe Size | O.D. of Pipe | Dia. of Flange | Dia. of Bolt Circle | No. of Bolts | Dia. of Bolts | Thickness |
|---|---|---|---|---|---|---|
| 1/2" | 21.3 | 95.3 | 66.7 | 4 | 12.7 | 4.8 |
| 3/4" | 26.7 | 101.6 | 73.0 | 4 | 12.7 | 4.8 |
| 1" | 33.4 | 114.3 | 82.6 | 4 | 12.7 | 4.8 |
| 1 1/4" | 42.2 | 120.7 | 87.6 | 4 | 12.7 | 6.4 |
| 1 1/2" | 48.3 | 133.4 | 98.4 | 4 | 12.7 | 6.4 |
| 2" | 60.3 | 152.4 | 114.3 | 4 | 15.9 | 7.9 |
| 2 1/2" | 73.0 | 165.1 | 127.0 | 4 | 15.9 | 7.9 |
| 3" | 88.9 | 184.2 | 146.1 | 4 | 15.9 | 9.5 |
| 3 1/2" | 101.6 | 203.2 | 165.1 | 4 | 15.9 | 9.5 |
| 4" | 114.3 | 215.9 | 177.8 | 4 | 15.9 | 9.5 |
| 5" | 141.3 | 254.0 | 209.6 | 8 | 15.9 | 12.7 |
| 6" | 168.3 | 279.4 | 228.6 | 8 | 15.9 | 12.7 |
| 7" | 190.5 | 304.8 | 260.4 | 8 | 15.9 | 12.7 |
| 8" | 219.1 | 336.6 | 292.1 | 8 | 15.9 | 12.7 |
| 9" | 244.5 | 368.3 | 323.9 | 8 | 15.9 | 15.9 |
| 10" | 273.0 | 406.4 | 355.6 | 8 | 19.1 | 15.9 |
| 12" | 323.9 | 457.2 | 406.4 | 12 | 19.1 | 15.9 |
| 14" | 355.6 | 527.1 | 469.9 | 12 | 22.2 | 19.1 |
| 16" | 406.4 | 577.9 | 520.7 | 12 | 22.2 | 19.1 |
| 18" | 457.2 | 641.4 | 584.2 | 12 | 22.2 | 22.2 |
| 20" | 508.0 | 704.9 | 641.4 | 16 | 22.5 | 25.4 |
| 24" | 609.6 | 825.5 | 755.7 | 16 | 25.4 | 28.6 |
All Dimensions in MM
Technical Dimensions
| B | D | C | G | J | A | E | F | A | E | F | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Pipe Size |
Socket Bore dia. B (Note [1]) |
Bore Diameter of Fittings, D [Note (1)] |
Socket Wall Thickness, C | Body Wall | Min Depth of Socket |
Center to Bottom of Socket, A | Laying Lengths |
Tolerances ± | End Wall Thickness Kmin |
||||||||||||||||||||
| Class Designation | Class Designation | Class Designation | 90 deg Elbows, Tees and Crosses |
45 deg Elbows | Class Designation | ||||||||||||||||||||||||
| 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | Class Designation | Coupl- ings, E |
Half Coupl- ings, F |
A | E | F | 3000 | 6000 | 9000 | ||||||||||||
| (mm) | (Inch) | 3000 | 6000 | 9000 | Agv. | Min. | Agv. | Min. | Agv. | Min. | Min. | Min. | Min. | J | 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | |||||||||
| 6 | 1/8 | 11.2 10.8 |
7.6 6.1 |
4.8 3.2 |
..... | 3.18 | 3.18 | 3.96 | 3.43 | ..... | ..... | 2.41 | 3.15 | ..... | 9.5 | 11.0 | 11.0 | ..... | 8.0 | 8.0 | ..... | 6.5 | 16.0 | 1.0 | 1.5 | 1.0 | 4.8 | 6.4 | ..... |
| 8 | 1/4 | 14.6 14.2 |
10.0 8.5 |
7.1 5.6 |
..... | 3.78 | 3.30 | 4.60 | 4.01 | ..... | ..... | 3.02 | 3.68 | ..... | 9.5 | 11.0 | 13.5 | ..... | 8.0 | 8.0 | ..... | 6.5 | 16.0 | 1.0 | 1.5 | 1.0 | 4.8 | 6.4 | ..... |
| 10 | 3/8 | 18.0 17.6 |
13.3 11.8 |
9.9 8.4 |
..... | 4.01 | 3.50 | 5.03 | 4.37 | ..... | ..... | 3.20 | 4.01 | ..... | 9.5 | 13.5 | 15.5 | ..... | 8.0 | 11.0 | ..... | 6.5 | 17.5 | 1.5 | 3.0 | 1.5 | 4.8 | 6.4 | ..... |
| 15 | 1/2 | 22.2 21.8 |
16.6 15.0 |
12.5 11.0 |
7.2 5.6 |
4.67 | 4.09 | 5.97 | 5.18 | 9.35 | 8.18 | 3.73 | 4.78 | 7.47 | 9.5 | 15.5 | 19.0 | 25.5 | 11.0 | 12.5 | 15.5 | 9.5 | 22.5 | 1.5 | 3.0 | 1.5 | 6.4 | 7.9 | 11.2 |
| 20 | 3/4 | 27.6 27.2 |
21.7 20.2 |
16.3 14.8 |
11.8 10.3 |
4.90 | 4.27 | 6.96 | 6.04 | 9.78 | 8.56 | 3.91 | 5.56 | 7.82 | 12.5 | 19.0 | 22.5 | 28.5 | 13.0 | 14.0 | 19.0 | 9.5 | 24.0 | 1.5 | 3.0 | 1.5 | 6.4 | 7.9 | 12.7 |
| 25 | 1 | 34.3 33.9 |
27.4 25.9 |
21.5 19.9 |
16.0 14.4 |
5.69 | 4.89 | 7.92 | 6.93 | 11.38 | 9.96 | 4.55 | 6.35 | 9.09 | 12.5 | 22.5 | 27.0 | 32.0 | 14.0 | 17.5 | 20.5 | 12.5 | 28.5 | 2.0 | 4.0 | 2.0 | 9.6 | 11.2 | 14.7 |
| 32 | 1.1/4 | 43.1 42.7 |
35.8 34.3 |
30.2 28.7 |
23.5 22.0 |
6.07 | 5.28 | 7.92 | 6.93 | 12.14 | 10.96 | 4.85 | 6.35 | 9.70 | 12.5 | 27.0 | 32.0 | 35.0 | 17.5 | 20.5 | 22.5 | 12.5 | 30.0 | 2.0 | 4.0 | 2.0 | 9.6 | 11.2 | 14.2 |
| 40 | 1.1/2 | 49.2 48.8 |
41.6 40.1 |
34.7 33.2 |
28.7 27.2 |
6.35 | 5.54 | 8.92 | 7.80 | 12.70 | 11.12 | 5.08 | 7.14 | 10.15 | 12.5 | 32.0 | 38.0 | 38.0 | 20.5 | 25.5 | 25.5 | 12.5 | 32.0 | 2.0 | 4.0 | 2.0 | 11.2 | 12.7 | 15.7 |
| 50 | 2 | 61.7 61.2 |
53.3 51.7 |
43.6 42.1 |
38.9 37.4 |
6.93 | 6.04 | 10.92 | 9.50 | 13.84 | 12.12 | 5.54 | 8.74 | 11.07 | 16.0 | 38.0 | 41.0 | 54.0 | 25.5 | 28.5 | 28.5 | 19.0 | 41.0 | 2.0 | 4.0 | 2.0 | 12.7 | 15.7 | 19.0 |
| 65 | 2.12 | 74.4 73.9 |
64.2 61.2 |
..... | ..... | 8.76 | 7.67 | ..... | ..... | ..... | ..... | 7.01 | ..... | ..... | 16.0 | 41.0 | ..... | ..... | 28.5 | ..... | ..... | 19.0 | 43.0 | 2.5 | 5.0 | 2.5 | 15.7 | 19.0 | ..... |
| 80 | 3 | 90.3 89.8 |
79.4 76.4 |
..... | ..... | 9.52 | 8.30 | ..... | ..... | ..... | ..... | 7.62 | ..... | ..... | 16.0 | 57.0 | ..... | ..... | 32.0 | ..... | ..... | 19.0 | 44.5 | 2.5 | 5.0 | 2.5 | 19.0 | 22.4 | ..... |
| 100 | 4 | 115.7 115.2 |
103.8 100.7 |
..... | ..... | 10.69 | 9.35 | ..... | ..... | ..... | ..... | 8.56 | ..... | ..... | 19.0 | 66.5 | ..... | ..... | 41.0 | ..... | ..... | 19.0 | 48.0 | 2.5 | 5.0 | 2.5 | 22.4 | 28.4 | ..... |
WHY OUR MS WELD NECK FLANGE (WNRF) MATTERS
High-Pressure Performance, Superior Strength & Leak-Proof Connections
Our MS Weld Neck Flange (WNRF) is manufactured from premium-quality mild steel to provide exceptional strength and reliable performance in high-pressure piping systems. Featuring a long tapered hub for smooth stress distribution, it ensures leak-proof sealing, precise alignment, and long service life in demanding industrial applications.
Long Tapered Neck Design
Provides smooth stress distribution, reducing welding fatigue and improving pipeline strength.
Superior Pressure Resistance
Engineered to withstand high-pressure and high-temperature operating conditions.
Heavy-Duty MS Construction
Manufactured from premium-quality mild steel for excellent durability, strength, and corrosion resistance.
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FREQUENTLY ASKED QUESTIONS
Frequently Asked Questions About Our MS Weld Neck Flange (WNRF)
Find answers to the most common questions about our MS Weld Neck Flange (WNRF), including materials, standards, applications, installation, and performance.
“Our MS Weld Neck Flange (WNRF) delivers superior strength, reliable sealing, and outstanding performance for high-pressure industrial piping systems.”
Our MS Weld Neck Flanges are manufactured from premium-quality mild steel to provide excellent strength, durability, and reliable industrial performance.
A Weld Neck Flange is designed to provide a strong butt-welded connection with excellent stress distribution, making it ideal for high-pressure and high-temperature piping systems.
They are widely used in oil & gas, petrochemical, refineries, chemical processing, power plants, water treatment, and heavy industrial piping systems.
