Weld Neck Flanges / WNRF Flanges

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Slip On Flanges

We are Manufacturer, Supplier and Exporter of ASME 16.5 Weld Neck Flanges / WNRF Flanges. Weld Neck flanges or welding-neck flanges can be differentiated from all other types of flange by their long tapered hub. These flanges are bored to match the inside diameter of the mating pipe so there will be no restriction of product flow. The weld neck is therefore favoured in critical applications. Weld Neck Flanges are available in following specifications:

Size 1/2"NB TO 60"NB
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6, 10, 16, 25, 40 Etc.
Material Grade
In Form SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc.
Standard ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN Flanges.
Type of Flanges Weld Neck Flanges - WNRF, Slip On Raise Face - SORF,Screwed (Threaded) Flanges, Long Weld Neck Flanges, Reducing.
Stainless Steel Weld Neck Flanges ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Carbon Steel Weld Neck 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, F70
Alloy Steel Weld Neck Flanges ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex Steel Weld Neck Flanges ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61, 2205 (UNS No. S31803), 2507 (UNS No. S32750).
Nickel Alloy Weld Neck Flanges Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22, C276, Copper Nickel, Hastelloy, Nickel, Monel, Inconel, Alloy20.
ANSI, ASME, ASA, B16.5 WELDING NECK FLANGE RF Dimensions