Necked butt-weld flange

Overview:

The necked butt-weld flange is a commonly used type of flange in pipeline connections. The main feature of the necked butt-weld flange is that it has a cylindrical neck, which is connected to the flange plate. The presence of the neck increases the strength and rigidity of the flange, enabling it to better withstand the pressure and stress inside the pipeline.

1. NPS: DN15-DN3000,1/2"-120"

2. Pressure Rating: Class150-Class2500, PN10-PN160

3. Material:

① Stainless Steel: 31254, 904/L, 347/H, 317/L, 310S, 309, 316Ti, 321/H, 304/L, 304H, 316/L, 316H

② DP Steel: UNS S31803, S32205, S32750, S32760

③ Alloy steel: N04400, N08800, N08810, N08811, N08825, N08020, N08031, N06600, N06625, N08926, N08031, N10276