Weld Neck Flanges
Weld Neck Flanges are a very common type of pipe flanges used in
various industrial applications. They have a long tapered hub and
are often used for high pressure applications.
We are a fast growing organization, engaged in manufacturing,
supply and export of welding neck flanges, industrial weld neck
flanges and forged flanges. Our weld neck flanges are drilled with
the wall thickness of flange having the same dimensions of pipe.
Flanges for heavier pipes have smaller bore, while flanges of
lighter pipes have larger bore. These weld neck flanges, industrial
weld neck flanges, forged flanges are normally used for
high-pressure, cold or hot temperature.
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Product Range:
WNRF Flanges Size : 1/8" NB TO 48"NB.
WNRF Flanges Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 #.
Stainless Steel WNRF Flanges: ASTM A 182, A 240
Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H,
317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205, Super
Duplex stainless steel UNS S32750
Carbon Steel WNRF Flanges: ASTM A 105, ASTM A 181
Alloy Steel WNRF Flanges : ASTM A 182, GR F1, F11, F22, F5, F9, F91
Nickel Alloys WNRF Flanges : Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy
C22,C276
Copper Alloys WNRF Flanges: Copper, Brass & Gunmetal
WNRF Flanges Standard
ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642,
DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632,
DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S : BS4504 , BS4504, BS1560, BS10
Value Added Services
- Hot Dip Galvanizing ,
- Epoxy Coating.
Test Certificate
Manufacturer Test Certificate as per EN 10204 / 3.1B
Designs of flanges:
A wide variety of flange designs are available. They are available
in various shapes and sizes. Some of the popular designs are as
follows:
- Butt weld
- Socket weld
- Captive
- Split
- Square
- Round
- Rectangle etc.
Custom shapes and sizes are also manufactured by numerous
manufacturers. Various pipe flanges include machining details such
as gasket surfaces, facing details, non-standard drilling, bevel
and radius edges, o-ring grooves and raised or recessed faces. Some
typical designs on flanges faces are shown below.
| Raised Fase | Chamfer |
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| Counter Bore | O-Ring Groove |
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| Radius | Gasket Surface |
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Applications of pipe flanges:
Pipe flanges are widely used in pipe fittings of various
industrial, commercial and residential applications. Pipe flanges
can be customized to suit your application with various machining
details. These pipe flanges have been used extensively in:
- UHV applications
- Hydraulic control systems for turbine generators
- High pressure ground support missile systems
- Nuclear and conventional power plant applications etc.
