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ANSI B16.5 A105 SS304 SS316 Gold Welding Neck Flange , Socket Weld Flanges

ANSI B16.5 Pressure 150 - 2500 Welding Neck Flange , A105 , SS304 , SS316

Description:

Weld Neck Flanges are flanges that designed to be joined to a piping system by butt welding. the WN Flange is relatively expensive because of its long neck, but is preferred for high stress applications. The neck, or hub, transmits stresses to the pipe, reducing stress concentrations at the base of the Welding-Neck flanges. The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange. The bore of the Weld-Neck flange matches the bore of the pipe, reducing turbulence and erosion.

ANSI flange(American National Standards Institute) include ANSI B 16.5, ANSI B 16.47 series A SP44, Series B, this standard system include slip on flange, blind flange, welded neck flange, threaded flange, lapped joint flange(loose flange), socket welded flange, Orifice Flanges, long weld neck flange and special flange.It is the machinery, petroleum, chemical, water, electricity, shipbuilding sectors piping systems and devices most widely used pipe fittings.

Standard	Type	Size	Nominal Pressure class(lb)	Facing	Material
ANSI B16.5	Slip-on,Welding Neck,Blind,Socket Weld, Threaded, Lap Joint	1/2\"-48\"	150-2500	RF; FF;RTJ	A105; A105N; SS304/304L, SS316/316L
ANSI B16.47 Series A( or MSS SP44)	Welding Neck, Blind	26\"-60\"	150-900	RF; FF;RTJ	A105; A105N; SS304/304L, SS316/316L
ANSI B16.47 Series B( or API605)	Welding Neck, Blind	26\"-60\"	75-900	RF; FF;RTJ	A105; A105N; SS304/304L, SS316/316L