Welding Neck Flange

Nominal Pipe Size	Outside Diameter	Thickness	Raised Face Diameter	Length Thru Hub	Point of Weld	Hub Diameter	Bore	Approximate  Weight	Bolt Circle	Number of Holes	Diameter of Holes
	(O)	(T)	(R)	(Y)	(A)	(X)	(B)	(lbs)	(C)
1/2	3.50	0.44	1.38	1.88	0.84	1.19	0.62	2	2.38	4	0.63
3/4	3.88	0.50	1.69	2.06	1.05	1.50	0.82	2	2.75	4	0.63
1	4.25	0.56	2.00	2.19	1.32	1.94	1.05	3	3.13	4	0.63
1 1/4	4.63	0.63	2.50	2.25	1.66	2.31	1.38	3	3.50	4	0.63
1 1/2	5.00	0.69	2.88	2.44	1.90	2.56	1.61	4	3.88	4	0.63
2	6.00	0.75	3.63	2.50	2.38	3.06	2.07	6	4.75	4	0.75
2 1/2	7.00	0.88	4.13	2.75	2.88	3.56	2.47	8	5.50	4	0.75
3	7.50	0.94	5.00	2.75	3.50	4.25	3.07	10	6.00	4	0.75
3 1/2	8.50	0.94	5.50	2.81	4.00	4.81	3.55	12	7.00	8	0.75
4	9.00	0.94	6.19	3.00	4.50	5.31	4.03	15	7.50	8	0.75
5	10.00	0.94	7.31	3.50	5.56	6.44	5.05	19	8.50	8	0.88
6	11.00	1.00	8.50	3.50	6.63	7.56	6.07	24	9.50	8	0.88
8	13.50	1.13	10.63	4.00	8.63	9.69	7.98	39	11.75	8	0.88
10	16.00	1.19	12.75	4.00	10.75	12.00	10.02	52	14.25	12	1.00
12	19.00	1.25	15.00	4.50	12.75	14.38	12.00	80	17.00	12	1.00
14	21.00	1.38	16.25	5.00	14.00	15.75	13.25	110	18.75	12	1.13
16	23.50	1.44	18.50	5.00	16.00	18.00	15.25	140	21.25	16	1.13
18	25.00	1.56	21.00	5.50	18.00	19.88	17.25	150	22.75	16	1.25
20	27.50	1.69	23.00	5.69	20.00	22.00	19.25	180	25.00	20	1.25
22	29.50	1.81	25.25	5.88	22.00	24.25	21.25	225	27.25	20	1.38
24	32.00	1.88	27.25	6.00	24.00	26.13	23.25	260	29.50	20	1.38

ANSI/ASME B16.5 CLASS 150 WELDING NECK FLANGE is the main type of American standard flanges which can be widely used for chemical, oil, gas, power, shipbuilding ect. Welding neck flange has many special advantages so it is usually used in high pressure pipeline. The contact face of welding neck flange generally refers to RF, RJ, FM ect.  

Metleader as a very professional supplier in China, our ANSI/ASME B16.5 CLASS 150 WELDING NECK FLANGE is made of carbon steel, stainless steel and alloy steel. The size range is from 1/2” to 60”. We always play as the agency of buyers to visit and check factories, inspection the whole production processing and supervision of loading. Our only one aim is to deliver all cargos perfectly to our customers. 

Recently our ANSI/ASME B16.5 CLASS 150 WELDING NECK FLANGE is being exported to America with moderate price based on good quality. And our product has been approved by our customers and the purchasing quantity is being increased. Actually our company also supply many other products except for ANSI/ASME B16.5 CLASS 150 WELDING NECK FLANGE. Such as carbon steel/ stainless steel/ alloy steel pipe fitting and slip on flange, socket flange, thread flange, blind flange. The main pipe fitting products include steel elbow, tee, reducer and cap. Any request for pipe flanges and fittings, please freely contact to me at any time.