Slip-On Welding Steel Pipe Flange

Slip-On Welding Steel Pipe Flange has a short neck, which increases the strength and load carrying capacity of the flange, allowing it to be used on higher pressure pipes. However, compared with plate flat welding flanges, necked flat welding flanges are more expensive and are more prone to bumping during transportation due to their shape. In addition, there are differences between necked flat weld flanges and necked butt weld flanges in terms of weld seam form, material, and nominal pressure.

Overview

Difference:

The weld seam between the pipe and the flange of the slip on weld flange is in the form of fillet weld, while the weld seam between the necked butt weld flange and the pipe is in the form of ring weld.

In terms of material, the slip on weld flanges are usually machined from ordinary steel plates with the required thickness, while the necked butt weld flanges are mostly machined from forged steel parts.

In terms of nominal pressure, the nominal pressure of slip on weld flanges is usually 0.6---4.0MPa, while the nominal pressure of necked butt weld flanges is 1--25MPa grade.

Picture:

Slip-On Welding Steel Pipe Flange2.jpg

DN	Flange Outer diameter		Joint Size					Flange Size			Weight
DN	A	B	D	K	L	n	Th	C	A	B	Kg
10	17.2	14	90	60	14	4	M12	14	18	15	0.61
15	21.3	18	95	65	14	4	M12	14	22	19	0.68
20	26.9	25	105	75	14	4	M12	16	27.5	26	0.94
...	...	...	...	...	...	...	...	...	...	...	...
450	457	480	615	565	26	20	M24	35	462	485	27.9
500	508	530	670	620	26	20	M24	38	513.5	535	34.9
600	610	630	780	725	30	20	M27	42	616.5	636	48.1

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