Welding Neck

Dimensions	Diameter : 1/2" à 24" Pressure class : 150# - 300# - 600# - 1500# Schedules : SCH10S - SCH40S - SCH80S - SCH160 See detailed dimensions
Variations	Face finish: Raised face (RF) - Flat face (FF) - RTJ - ... Variariations : Long Welding Neck - Reducing Welding neck - Orifice Welding Neck
Standards	ASTM B564 - ASME SB564- 'Standard Specification for Nickel Alloy Forgings' ASME B16.5 - 'Pipe Flanges and Flanged Fittings' ASME B16.36 - 'Orifice Flanges' ASME B16.47 - 'Large Diameter Steel Flanges NPS26 Through NPS60' MSS SP-6 - 'Standard Finishes for Contact Faces of Pipe Flanges and Connecting End Flanges of Valves and Fittings'

Dimensions

Diameter : 1/2" à 24"

Pressure class : 150# - 300# - 600# - 1500#

Schedules : SCH10S - SCH40S - SCH80S - SCH160

See detailed dimensions

Variations

Face finish: Raised face (RF) - Flat face (FF) - RTJ - ...

Variariations : Long Welding Neck - Reducing Welding neck - Orifice Welding Neck

Standards

ASTM B564 - ASME SB564- 'Standard Specification for Nickel Alloy Forgings'

ASME B16.5 - 'Pipe Flanges and Flanged Fittings'
ASME B16.36 - 'Orifice Flanges'
ASME B16.47 - 'Large Diameter Steel Flanges NPS26 Through NPS60'

MSS SP-6 - 'Standard Finishes for Contact Faces of Pipe Flanges and Connecting End Flanges of Valves and Fittings'

Notes

In addition to standard-size parts from stock, FloWell offers a range of complementary services:

Manufactured (from hollows)	Thanks to our production facility, we can manufacture these parts from hollows. Large quantities or a single part, we adapt to your needs.See the data sheet of this service
Chamferring/Stripping back	We can realize all kinds of threadsDepending on the available resources, in order to deliver within an even shorter timeframe, we can machine a part to reduce its thickness.See the data sheet of this service
Specific Marking and Packaging	Each item or part has a unique identifier and is specifically packaged to meet the customer’s needs... We adapt to your requestSee the data sheet of this service
Upgrading	The parts we have in stock are usually delivered with a 3.1 certificate. Depending on what you need, we can perform the tests required to issue a 3.2 certificate, or a CMTR in accordance with the ASME III Code. See the data sheet of this service

150Lbs - 300Lbs - 600Lbs

The tables below show the most common sizes but are not exhaustive.

150 Lbs

							Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (F)	Dia. (B)	Dia. (d1)	Height¹ (H)	Nbr	Holes	Dia. (C)
1/2"	90	9.6	35.05	30	21.3	46	4	15.87	60.3
3/4"	100	11.2	42.93	38	26.7	51	4	15.87	69.9
1"	110	12.7	50.80	49	33.4	54	4	15.87	79.4
1 ^1/4"	115	14.3	63.50	59	42.2	56	4	15.87	88.9
1 ^1/2"	125	15.9	73.15	65	48.3	60	4	15.87	98.4
2"	150	17.5	91.94	78	60.3	62	4	19.05	120.7
2 ^1/2"	180	20.7	104.65	90	73.0	68	4	19.05	139.7
3"	190	22.3	127.00	108	88.9	68	4	19.05	152.4
3 ^1/2"	215	22.3	139.70	122	101.6	70	8	19.05	177.8
4"	230	22.3	157.22	135	114.3	75	8	19.05	190.5
5"	255	22.3	185.67	164	141.3	87	8	22.22	215.9
6"	280	23.9	215.90	192	168.3	87	8	22.22	241.3
8"	345	27.0	269.74	246	219.1	100	8	22.22	298.5
10"	405	28.6	323.85	305	273.0	100	12	25.40	362.0
12"	485	30.2	381.00	365	323.8	113	12	25.40	431.8
14"	535	33.4	412.75	400	355.6	125	12	28.57	476.3
16"	595	35.0	469.90	457	406.4	125	16	28.57	539.8
18"	635	38.1	533.40	505	457.0	138	16	31.75	577.9
20"	700	41.3	584.20	559	508.0	143	20	31.75	635.0
24"	815	46.1	692.15	663	610.0	151	20	34.92	749.3

1,6mm raised face not included in the E & H dimensions
See below for the A dimension

The dimensions are in millimeters
Source : ASME B16.5 - 2007

300 Lbs

							Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (F)	Dia. (B)	Dia. (d1)	Height¹ (H)	Nbr	Holes	Dia. (C)
1/2"	95	14.3	35.05	38	21.3	51	4	15.87	66.7
3/4"	115	15.9	42.93	48	26.7	56	4	19.05	82.6
1"	125	17.5	50.80	54	33.4	60	4	19.05	88.9
1 ^1/4"	135	20.7	63.50	64	42.2	64	4	19.05	98.4
1 ^1/2"	155	22.3	73.15	70	48.3	67	4	22.22	114.3
2"	165	25.4	91.94	84	60.3	68	8	19.05	127.0
2 ^1/2"	190	28.6	104.65	100	73.0	75	8	22.22	149.2
3"	210	31.8	127.00	117	88.9	78	8	22.22	168.3
3 ^1/2"	230	35.0	139.70	133	101.6	79	8	22.22	184.2
4"	255	38.1	157.22	146	114.3	84	8	22.22	200.0
5"	280	44.5	185.67	178	141.3	97	8	22.22	235.0
6"	320	47.7	215.90	206	168.3	97	12	22.22	269.9
8"	380	55.6	269.74	260	219.1	110	12	25.40	330.2
10"	445	63.5	323.85	321	273.0	116	16	28.57	387.4
12"	520	66.7	381.00	375	323.8	129	16	31.75	450.8
14"	585	69.9	412.75	425	355.6	141	20	31.75	514.4
16"	650	76.2	469.90	483	406.4	144	20	34.92	571.5
18"	710	82.6	533.40	533	457.0	157	24	34.92	628.6
20"	775	88.9	584.20	587	508.0	160	24	34.92	685.8
24"	915	101.6	692.15	702	610.0	167	24	41.27	812.8

1,6mm raised face not included in the E & H dimensions
See below for the A dimension

The dimensions are in millimeters
Source : ASME B16.5 - 2007

600 Lbs

							Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (F)	Dia. (B)	Dia. (d1)	Height¹ (H)	Nbr	Holes	Dia. (C)
1/2"	95	14.3	35.05	38	21.3	52	4	15.87	66.7
3/4"	115	15.9	42.93	48	26.7	57	4	19.05	82.6
1"	125	17.5	50.80	54	33.4	62	4	19.05	88.9
1 ^1/4"	135	20.7	63.50	6	42.2	67	4	19.05	98.4
1 ^1/2"	155	22.3	73.15	70	48.3	70	4	22.22	114.3
2"	165	25.4	91.94	84	60.3	73	8	19.05	127.0
2 ^1/2"	190	28.6	104.65	100	73.0	79	8	22.22	149.2
3"	210	31.8	127.00	117	88.9	83	8	22.22	168.3
3 ^1/2"	230	35.0	139.70	133	101.6	86	8	25.40	184.2
4"	275	38.1	157.22	152	114.3	102	8	25.40	215.9
5"	330	44.5	185.67	189	141.3	114	8	28.57	266.7
6"	355	47.7	215.90	222	168.3	117	12	28.57	292.1
8"	420	55.6	269.74	273	219.1	133	12	31.75	349.2
10"	510	63.5	323.85	343	273.0	152	16	34.92	431.8
12"	560	66.7	381.00	400	323.8	156	20	34.92	489.0
14"	605	69.9	412.75	432	355.6	165	20	38.10	527.0
16"	685	76.2	469.90	495	406.4	178	20	41.27	603.2
18"	745	82.6	533.40	546	457.0	184	20	44.45	654.0
20"	815	88.9	584.20	610	508.0	190	24	44.45	723.9
24"	940	101.6	692.15	718	610.0	203	24	50.80	838.2

6,4mm raised face not included in the E & H dimensions
See below for the A dimension

The dimensions are in millimeters
Source : ASME B16.5 - 2007

InNER diameter depending on thicknesses - A

Nominal Bore	SCH10S	SCH40S	SCH80S	SCH160
1/2"	17.1	15.8	13.9	11.8
3/4"	22.4	20.9	18.8	15.6
1"	27.8	26.6	24.3	20.7
1 ^1/4"	36.6	35.1	32.5	29.5
1 ^1/2"	42.7	40.9	38.1	34
2"	54.7	52.5	49.2	42.9
2 ^1/2"	66.9	62.7	59	54
3"	82.8	77.9	73.7	66.7
3 ^1/2"	95.5	90.1	85.4	-
4"	108.2	102.3	97.2	87.3
5"	134.5	128.2	122.2	109.6
6"	161.5	154.1	146.3	131.9
8"	211.5	202.7	193.7	173.1
10"	264.6	254.5	247.6	215.8
12"	314.7	304.8	198.6	257.3
14"	346	336.5	330.2	284.2
16"	396.8	387.3	381	325.5
18"	447.6	438.1	431.8	366.8
20"	496.9	488.9	482.6	408
24"	596.9	590.5	584.2	490.5

The dimensions are in millimeters
Source : ASME B16.5 - 2007

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