One of The Oldest manufacturers, suppliers & exporter of Stainless Steel Fittings & Flanges, Alloy Steel Fittings & Flanges, Carbon Steel Fittings & Flanges Since 1987.
One of The Oldest manufacturers, suppliers & exporter of Stainless Steel Fittings & Flanges, Alloy Steel Fittings & Flanges, Carbon Steel Fittings & Flanges Since 1987.
Fitwel Industries LLP is a well-known manufacturer, supplier & exporter of Carbon Steel Weld Neck Flanges, Carbon Steel Long Weld Neck Flange, Carbon Steel WNRF Flange, CS Weld Neck Flange, CS WNRF Flange, Carbon Steel Welding Neck Flange, ASTM A350 LF2 weld neck flange, weld neck flange a10, ASME B16.9 ASTM A234 WPB carbon steel flanges, ASTM A234 WPB carbon steel flanges in India. LTCS WNRF Flange (Welding neck Flange) is a flange that designed to be joined to a piping system by butt welding, according to ANSI B16.5/ANSI B16.47 Series A/ANSI B16.47 Series B American Standard. we also manufacture & Supply as per DIN Standard, BS Standard, JIS Standard etc.
WNRF OR Weld Neck Flanges are easy to recognize at the long tapered hub, a transition from Integral flange thickness to pipe or fitting thickness effected by the taper is beneficial, The Weld Neck Flange caused by line expansion or other variable forces. These flanges are bored to match the inside diameter of the mating pipe or fitting end so there will be no restriction of product flow. This prevents turbulence at the joint and reduces erosion from the transition. They also provide excellent stress distribution through the Long hub and are easily radiographed for flaw detection. The Long Weld Neck flange type will be welded to a pipe or fitting with a single full penetration, V weld (Buttweld).
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
Carbon Steel Slip On Flanges :ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
All dimensions are in "mm" unless noted otherwise.
| 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 |
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