wn flange or weld neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. As weld neck flange manufacturer,the regular type is used with pipes. The long type is unsuitable for pipes and is used in process plant. wn flange consists of a circular fitting with a protruding rim around the circumference. Generally machined from a forging, these are typically butt welded to a pipe. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts. We are professional weld neck flanges supplier.

weld neck flanges are suitable for use in hostile environments that have extremes of temperature, pressure or other sources of stress.The resilience of this type of flange is achieved by sharing the environmental stress with the pipe with which it is welded. This type of flange has been used successfully at pressures up to 5,000 psi.

The rim has numerous holes drilled into it that enables the flanged to be attached to a bolted flange. This design is far better because of the structural valve.

We are a professional weld neck flange supplier. steel welded flange is commonly used as the weld neck flange.

Long weld neck Flange

Wr are a long weld neck flange manufacturers. Long WN flange looks like the typical welding neck flange, but is considered to be elongated. It’s usually used as a nozzle for a column or barrel. You can also choose between the Equal LWN Barrel and LWN Heavy Barrel, which have a thick wall and their own shape.

Reducing Weld Neck Flange

It is also called reducing welding neck flange, because the flange neck has a reducing diameter that to weld to a smaller diameter pipe. We are weld neck flange factory.

Materials of WN Flanges

The welding neck flanges are available across various materials. These materials will have to be as per the Standards set. As a professional weld neck flange supplier, the materials also should be as per the quality specified by the ASTM or ASME standards.

However, the thickness and the inner diameter of the flange will be as per the size of the pipe for which this welding neck flange is being made.

Talking of the materials, Carbon alloy is a popular choice of material used to make these flanges since they are also resistant to extreme temperature. It is available in materials of ASTM A 181, and ASTM A 105. The flanges are available in various grades like ASME B16 47 ‘A’ Series, and ‘B’ Series to suit the needs of the clients and the industry. Such as:steel welded flange

Other than this material, Welding neck flanges are also in Stainless steel. The flange is made of ASTM A182, F304, 316L, 347H, 310S, ASME B16 5, and comes in a duplex steel finish.
The duplex steel material of UNS S31803 is also in use. Besides stainless steel, the welding neck flange is available in various other materials like Carbon alloy and nickel among others.
The Nickel alloy welding neck flange is available in the Inconel 600 and 625,Hastelloy C22,C276 and other such materials.

Weld Neck Flange Dimensions

Below we list some sizes of wn flange or weld neck flanges (Class 150) under ASME B16.5 (1/2” to 24”).

· The 1/2” NPS  has inside diameter of 0.62” and outside diameter of 3.50”. The raised face’s thickness is 1.88” with four holes for bolts.
· The 3/4” NPS has inside diameter of 0.82” and the outside diameter of 3.88”. The raised face’s thickness is 2.06” with four bolt holes.
· The 1” NPS  has inside diameter of 1.05” and outside diameter of 4.25”. The raised face’s thickness is 2.19” and the standard bolt holes are four in a number.
· 2” NPS has inside diameter of 2.07” and outside diameter of 6.00”, The raised face’s thickness is of 2.50”.
· The 5” NPS has 5.05” of inside diameter and the outer diameter is of 10.00”. The thickness of the raised face is 3.50”.
· The 6” NPS  has 6.065” of inside diameter and the outer diameter is of 11.00”. The thickness of the raised face is 3.50”.
· The 10” NPS has inside diameter dimension of 10.02” and the outer diameter of 16”. The thickness of the raised face is of 4.00”.
· The 20” NPS has inside diameter of 19.25” and the outer diameter of 27.50”. The thickness of the raised face is 5.69”.
· The 24” NPS gets the interior diameter of 23.25” and the outer diameter of 32.00”

Hebei Yuanjida Group is weld neck flange factory and weld neck flange supplier. As weld neck flanges manufacturers we are much experience to produce good quality weld neck flange.