Weld Neck Flange Class 150 Dimensions

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	90	9.6	30	21.3	46	Welding Neck bore is derived from the pipe schedule	34.9	2	60.3	1.6
3/4	20	100	11.2	38	26.7	51		42.9	2	69.9	1.6
1	25	110	12.7	49	33.4	54		50.8	2	79.4	1.6
1 1/4	32	115	14.3	59	42.2	56		63.5	2	88.9	1.6
1 1/2	40	125	15.9	65	48.3	60		73	2	98.4	1.6
2	50	150	17.5	78	60.3	62		92.1	2	120.7	1.6
2 1/2	65	180	20.7	90	73	68		104.8	2	139.7	1.6
3	80	190	22.3	108	88.9	68		127	2	152.4	1.6
3 1/2	90	215	22.3	122	101.6	70		139.7	2	177.8	1.6
4	100	230	22.3	135	114.3	75		157.2	2	190.5	1.6
5	125	255	22.3	164	141.3	87		185.7	2	215.9	1.6
6	150	280	23.9	192	168.3	87		215.9	2	241.3	1.6
8	200	345	27	246	219.1	100		269.9	2	298.5	1.6
10	250	405	28.6	305	273	100		323.8	2	362	1.6
12	300	485	30.2	365	323.8	113		381	2	431.8	1.6
14	350	535	33.4	400	355.6	125		412.8	2	476.3	1.6
16	400	595	35	457	406.4	125		469.9	2	539.8	1.6
18	450	635	38.1	505	457.2	138		533.4	2	577.9	1.6
20	500	700	41.3	559	508	143		584.2	2	635	1.6
24	600	815	46.1	663	610	151		692.2	2	749.3	1.6

Applications of Weld Neck Flange Class 150

Weld Neck Flanges Class 150 are widely used in industries where strength, safety, and leak-proof connections are required. Moreover, they are preferred in piping systems that handle low to medium pressures.

Oil & Gas Industry: These flanges are applied in crude oil, natural gas, and petroleum pipelines. As a result, they ensure long-lasting and reliable operations.
Petrochemical Plants: They are suitable for process piping where resistance to pressure and temperature fluctuations is needed. Furthermore, their smooth bore minimizes pressure drop.
Power Plants: Weld neck flanges are used in cooling water lines, steam pipelines, and boiler connections. Consequently, they enhance efficiency and reduce maintenance.
Water Treatment Plants: They are commonly installed in desalination systems, wastewater treatment units, and water supply lines. In addition, their corrosion-resistant materials ensure durability.
Chemical Industry: Since many chemicals are corrosive, weld neck flanges provide a secure and reliable joint. Therefore, they are essential in chemical transfer systems.
Food & Beverage Industry: Stainless steel weld neck flanges are utilized in sanitary and hygienic pipelines. Similarly, the pharmaceutical industry adopts them to maintain contamination-free processes.
HVAC Systems: They are used in chilled water, condenser, and cooling tower pipelines. Moreover, they provide a strong connection that withstands thermal cycling.
Marine & Shipbuilding: Weld neck flanges Class 150 are suitable for seawater and general marine pipelines. Thus, they contribute to long-lasting ship systems.