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Fitwel Industries LLP is one of the recognized names in the Metal Industry in India. We are the biggest Manufacturers, Suppliers, and Exporter of Alloy Steel Welding Neck Flange, Alloy Steel WN forged Flange, Alloy Steel WNRF Flange, Alloy Steel Weld Neck Flanges, ASME 16.5 Weld Neck Flanges / WNRF Flanges, Alloy Steel Forged welding neck Flange. Alloy Steel Ansi B16.5 Weld Neck Flanges - Class 150, 300, 600, 900, 1500, 2500 in comes in All Sizes & Dimensions. Alloy Steel Weld Neck Flange is a flange that designed to be joined to a piping system by butt welding. This kind of flange include lots of specification, Weld neck Flange is expensive because of its long neck and cost of people to contact WN flange with pipeline or fitting, but is preferred for high-stress applications.The necks, or hubs, transmits stresses to the pipeline.
The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange. The bore of Weld-Neck flange matches the bore of the pipeline, reducing turbulence and erosion. We at Fitwel Industries LLP, would like to take the opportunity to introduce ourselves as a leading Alloy Steel Welding Neck Flange manufacturer in India. Alloy Steel Welding Neck Flange is stocked or available in the following range of materials and sizes for the oil, gas, petrochemical, and allied industries.
ASME B16.5 Weld Neck Flanges Specification :
Standard : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size : 1/2" (15 NB) to 48" (1200NB)
Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
BS : BS4504 , BS4504, BS1560, BS10
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
ANSI B16.47 Weld Neck Flanges Material & Grades:
Alloy Steel Slip On Flanges :ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
All Classes Dimensions of Weld Neck Flanges
All dimensions are in "mm" unless noted otherwise.
Pressure Classes
| NPS |
DIA
D |
THK
B |
DIA
A |
DIA
OD |
HEIGHT
H |
DIA
K |
DIA
L |
| 1/2 |
3.75 |
0.56 |
1.5 |
0.84 |
2.06 |
2.62 |
5/8 |
| 3/4 |
4.62 |
0.62 |
1.88 |
1.05 |
2.25 |
3.25 |
3/4 |
| 1 |
4.88 |
0.69 |
2.12 |
1.32 |
2.44 |
3.5 |
3/4 |
| 1¼ |
5.25 |
0.81 |
2.5 |
1.66 |
2.62 |
3.88 |
3/4 |
| 1½ |
6.12 |
0.88 |
2.75 |
1.9 |
2.75 |
4.5 |
7/8 |
| 2 |
6.5 |
1 |
3.31 |
2.38 |
2.88 |
5 |
3/4 |
| 2½ |
7.5 |
1.12 |
3.94 |
2.88 |
3.12 |
5.88 |
7/8 |
| 3 |
8.25 |
1.25 |
4.62 |
3.5 |
3.25 |
6.62 |
7/8 |
| 3½ |
9 |
1.38 |
5.25 |
4 |
3.38 |
7.25 |
1 |
| 4 |
10 |
1.38 |
5.75 |
4.5 |
3.5 |
7.88 |
1 |
| 5 |
11 |
1.5 |
7 |
5.56 |
4 |
9.25 |
1 |
| 6 |
12.5 |
1.62 |
8.12 |
6.63 |
4.06 |
10.62 |
1 |
| 8 |
15 |
1.88 |
10.25 |
8.63 |
4.62 |
13 |
1.1/8 |
| 10 |
17.5 |
2.12 |
12.62 |
10.75 |
4.88 |
15.25 |
1¼ |
| 12 |
20.5 |
2.25 |
14.75 |
12.75 |
5.38 |
17.75 |
1.3/8 |
| 14 |
23 |
2.38 |
16.75 |
14 |
5.88 |
20.25 |
1.3/8 |
| 16 |
25.5 |
2.5 |
19 |
16 |
6 |
22.5 |
1½ |
| 18 |
28 |
2.62 |
21 |
18 |
6.5 |
24.75 |
1½ |
| 20 |
30.5 |
2.75 |
23.12 |
20 |
6.62 |
27 |
1.5/8 |
| 24 |
36 |
3 |
27.62 |
24 |
6.88 |
32 |
1.7/8 |
| NPS |
NO OF
BOLT
HOLES |
DIA
STUD
BOLTS |
LENGTH
STUD
BOLTS |
| 1/2 |
4 |
1/2 |
3 |
| 3/4 |
4 |
5/8 |
3.5 |
| 1 |
4 |
5/8 |
3.5 |
| 1¼ |
4 |
5/8 |
3.75 |
| 1½ |
4 |
3/4 |
4.25 |
| 2 |
8 |
5/8 |
4.25 |
| 2½ |
8 |
3/4 |
4.75 |
| 3 |
8 |
3/4 |
5 |
| 3½ |
8 |
7/8 |
5.5 |
| 4 |
8 |
7/8 |
5.5 |
| 5 |
8 |
7/8 |
5.75 |
| 6 |
12 |
7/8 |
6 |
| 8 |
12 |
1 |
6.75 |
| 10 |
16 |
1.1/8 |
7.5 |
| 12 |
16 |
1¼ |
8 |
| 14 |
20 |
1¼ |
8.25 |
| 16 |
20 |
1.3/8 |
8.75 |
| 18 |
24 |
1.3/8 |
9 |
| 20 |
24 |
1½ |
9.5 |
| 24 |
24 |
1¾ |
10.5 |
Notes:
Dimensions are in inches unless otherwise indicated.
The length of the Stud Bolt does not include the height of the chamfers (points).
ID = Depending on the wall thickness of the pipe, must be specified by the purchaser.
Other Related Products:
We Supply Weld Neck Flanges For Various Application Industry Like :
Oil & Gas Industries
Petrochemical Industries
Engineering Industries
Chemical Industries
Sugar Industries
Power Generation Industries
Fertilizers Industries
Food Processing Industries
FREQUENTLY SEARCH AS:
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