Weld Neck Flange

Weld neck flanges are connected to pipe by welding the pipe to the neck of the flange, which helps to pass on the stress from the weld neck to the pipe itself. This also reduces high stress concentration at the base of the hub of the weld neck flanges. Weld neck pipe flanges are generally used in high pressure application, where hot or cold temperatures exist. The inside diameter of a weld neck pipe flange is machined to match the inside diameter of the pipe. Weld neck flanges are widely being used in shipbuilding, power generation, petrochemical plant, water treatment, dairy plant, pharmaceutical plant etc.
Standards: asme b.16.5, asme b.16.47 (ab series), b16.48-api590, api 605, awwa c207, bs 10, din 2633, mss-sp-44.
Classes: 150 lbs up to 2500 lbs
sizes: 12"up to 36" (sizes over 36" available on request)
materials: monel, nickel, inconel, hastalloy, titanium, tantalum, stainless steel, alloy steel, carbon steel, cupro-nickel 9010 & 7030
joint faces: rfrtjff