Stainless steel neck welding flange PN10 PN16 PN25

Product name: Stainless Steel Neck Welding Flange;

Application: Connect - connect the two ends of the pipe;

Suitable for high pressure environments-Due to the transition structure of the tapered neck and the butt welding connection, the strength and stiffness of the stainless steel necked butt welding flange are enhanced, and the sealing performance is better than that of the flat welding flange.

Material:304 stainless steel,316L stainless steel,2205 stainless steel，etc..

product details

Video Introduction

Product Name	Stainless Steel Neck Welding Flange
Standard	ASTM A213, ASTM A312, ASTM A789, ASTM A790
Material Grade	304/316L/2205 etc.
NPS	1/2”-20”
Outer Diameter	21.3mm-508mm
Connection method	Flat Welding
Packing	Plastic bag/woven packing
Packing	Woven bags/Wooden boxes and other packaging methods.

Product Introduction

DN	d1	D	b	k	h	d4	s	d2
15	21.3	95	16	65	38	45	2.0	14
20	26.9	105	18	75	40	58	2.3	14
25	33.7	115	18	85	40	68	2.6	14
32	42.4	140	18	100	42	78	2.6	14
40	48.3	150	18	110	45	88	2.6	18
50	60.3	165	20	125	48	102	2.9	18
65	76.1	185	22	145	52	122	2.9	18
80	88.9	200	24	160	58	138	3.2	18
100	114.3	235	24	190	65	162	3.6	22
125	139.7	270	26	220	68	188	4.0	26
150	168.3	300	28	250	75	218	4.5	26
200	219.1	375	34	320	88	285	6.3	30
250	273.0	450	38	385	105	345	7.1	33
300	323.9	515	42	450	115	410	8.0	33
350	355.6	580	46	510	125	465	8.8	36
400	406.4	660	50	585	135	535	11	39

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Knowledge Expansion

Neck Butt Weld Flanges: Neck flange welds are often referred to as "high hub" flanges. Its purpose is to transfer the pressure of the pipe and thereby reduce the high stress concentration at the flange base. Due to its structural value, neck flange welding is the best design of flanges currently available butt welding.

For details,click "The difference between stainless steel neck flat welding flange and stainless steel neck butt welding flange"