BS4504 Part 1 PIPE FLANGES

TO ALLSTAINLESS LIMITED STAINLESS STEEL SITE

ALL STAINLESS LIMITED info section
21 Camford Way, Sundon Park Luton, Bedfordshire, LU3 3AN
Telephone: 01582 584075 Facsimile: 01582 585234
mailto:info@allstainlessltd.co.uk

BS4504 Part 1 PIPE FLANGES

We stock a full range of BS4504 flanges, from table 6 bar to 40 bar in grades 304, 316 and 321. Specials can be manufactured to customer’s special requirements. As an example, we show the dimensions of 16 bar, which is the most commonly used.
We also offer a range of BS10 Table and ANSI flanges. For more information contact our sales desk.

	WELD NECK FLANGE
	SCREWED BOSS FLANGE
	SLIP ON BOSS FLANGE
	PLATE FLANGE
	PLATE BLANK FLANGE

BS4504:Part 1:1969 PIPE FLANGES
Dimensions of Nominal Pressure 2.5 & 6 Flanges

N.B	Size																	No. of Holes
		D	C1	C2	C3	F	E	B	H1	H2	H3	N1	N2	A	K	R	L
Ins	mm

3/8	10	75	12	12	12	2	35	18.2	20	28	6	26	25	17.2	50	3	11	4
½	15	80	12	12	12	2	40	22.4	20	30	6	30	30	21.3	55	3	11	4
¾	20	90	14	14	14	2	50	27.7	24	32	6	38	40	26.9	65	4	11	4
1"	25	100	14	14	14	2	60	34.5	24	35	6	42	50	33.7	75	4	11	4
1 ¼	32	120	16	14	14	2	70	43.2	26	35	6	55	60	42.4	90	5	14	4
1 ½	40	130	16	14	14	3	80	49.5	26	38	7	62	70	48.3	100	5	14	4
2"	50	140	16	14	14	3	90	62.0	28	38	8	74	80	60.3	110	5	14	4
2 ½	65	160	16	14	14	3	110	74.7	32	38	9	88	100	76.1	130	6	14	4
3	80	190	18	16	16	3	128	90.7	34	42	10	102	110	88.9	150	6	18	4
4	100	210	18	16	16	3	148	116.1	40	45	10	130	130	114.3	170	6	18	4
5	125	240	20	18	18	3	178	143.8	44	48	10	155	160	139.7	200	6	18	8
6	150	265	20	18	18	3	202	170.7	44	48	12	184	185	168.3	225	8	18	8
8	200	320	22	20	20	3	258	221.5	44	55	15	236	240	219.1	280	8	18	8
10	250	375	24	22	22	3	312	276.4	44	60	15	290	295	273.0	335	10	18	12
12	300	440	24	22	22	4	365	327.2	44	62	15	342	355	323.9	395	10	22	12
14	350	490	26	22	22	4	415	359.2	-	62	15	385	-	355.6	445	10	22	12
16	400	540	28	22	22	4	465	410.5	-	65	15	438	-	406.4	495	10	22	16
18	450	595	30	24	24	4	520	461.8	-	65	15	492	-	457.0	550	12	22	16
20	500	645	30	24	24	4	570	513.1	-	68	15	538	-	508.0	600	12	22	20
24	600	755	32	24	34	5	670	616.0	-	70	16	640	-	610.0	705	12	26	20

BS4504:Part 1:1969 PIPE FLANGES
Dimensions of Nominal Pressure 10 Flanges

N.B	Size																		No. of Holes
		D	C1	C2	C3	F	E	B	H1	H2	H3	N1	N2	A	G	K	R	L
Ins	mm

8	200	340	24	24	24	3	268	221.5	44	62	16	235	247	219.1	190	295	10	22	8
10	250	395	26	26	26	3	320	276.4	46	68	16	292	292	273.0	237	350	12	22	12
12	300	445	26	26	26	4	370	327.2	46	68	16	344	344	323.9	285	400	12	22	12
14	350	505	28	26	26	4	430	359.2	-	68	16	385	-	355.6	332	460	12	22	16
16	400	565	32	26	26	4	482	410.5	-	72	16	440	-	406.4	380	515	12	26	16
18	450	615	36	28	28	4	532	461.8	-	72	16	492	-	457.2	428	565	12	26	20
20	500	670	38	28	28	4	585	513.1	-	75	16	542	-	508.0	475	620	12	26	20
24	600	780	42	28	-	5	685	616.0	-	80	18	642	-	609.6	-	725	12	30	20

BS4504:Part 1:1969 PIPE FLANGES
Dimensions of Nominal Pressure 16 Flanges

N.B	Size																		No. of Holes
		D	C1	C2	C3	F	E	B	H1	H2	H3	N1	N2	A	G	K	R	L
Ins	mm

3/8	10	90	14	14	14	2	40	18.2	20	35	6	28	30	17.2	-	60	4	14	4
½	15	95	14	14	14	2	45	22.4	20	35	6	32	35	21.3	-	65	4	14	4
¾	20	105	16	16	16	2	58	27.7	24	38	6	39	45	26.9	-	75	4	14	4
1"	25	115	16	16	16	2	68	34.5	24	38	6	46	52	33.7	-	85	4	14	4
1 ¼	32	140	16	16	16	2	78	43.2	26	40	6	56	60	42.4	-	100	6	18	4
1 ½	40	150	16	16	16	3	88	49.5	26	42	7	64	70	48.3	-	110	6	18	4
2"	50	165	18	18	18	3	102	62.0	28	45	8	74	84	60.3	-	125	6	18	4
2 ½	65	185	18	18	18	3	122	74.7	32	45	10	92	104	76.1	55	145	6	18	4
3	80	200	20	20	20	3	138	90.7	34	50	10	110	118	88.9	70	160	8	18	8
4	100	220	20	20	20	3	158	116.1	40	52	12	130	140	114.3	90	180	8	18	8
5	125	250	22	22	22	3	188	143.8	44	55	12	158	168	139.7	115	210	8	18	8
6	150	285	22	22	22	3	212	170.7	44	55	12	184	195	168.3	140	240	10	22	8
8	200	340	24	24	24	3	268	221.5	44	62	16	234	246	219.1	190	295	10	22	12
10	250	405	26	26	26	3	320	276.4	46	70	16	288	298	273.0	237	355	12	26	12
12	300	460	28	28	28	4	378	327.2	46	78	16	342	350	323.9	285	410	12	26	12
14	350	520	32	30	30	4	438	359.2	-	82	16	390	400	355.6	332	470	12	26	16
16	400	580	36	32	32	4	490	410.5	-	85	16	444	456	406.4	380	525	12	30	16
18	450	640	40	34	34	4	550	461.8	-	87	16	490	502	457.2	428	585	12	30	20
20	500	715	44	34	36	4	610	513.1	-	90	16	546	559	508.0	475	650	12	33	20
24	600	840	52	36	-	5	725	616.0	-	95	18	650	658	609.6	-	770	12	36	20

BS4504:Part 1:1969 PIPE FLANGES
Dimensions of Nominal Pressure 25 Flanges

N.B	Size																				No. of Holes
		D	C1	C2	C3	F	E	B	H1	H2	H3	N1	N2	A	G	K	X	Y	R	L
Ins	mm

8	200	360	28	30	30	3	278	221.5	52	80	16	244	256	219.1	190	310	360	32	10	26	12
10	250	425	32	32	32	3	335	276.4	60	88	18	298	310	273.0	237	370	425	40	12	30	12
12	300	485	38	34	34	4	395	327.2	67	92	18	352	364	323.9	285	430	485	48	12	30	16
14	350	555	42	38	38	4	450	359.2	-	100	20	398	-	355.6	332	490	-	-	12	33	16
16	400	620	46	40	40	4	505	410.5	-	110	20	452	-	406.4	380	550	-	-	12	36	16
18	450	670	52	42	42	4	555	461.8	-	110	20	505	-	457.2	425	600	-	-	12	36	20
20	500	730	58	44	44	4	615	513.1	-	125	20	558	-	508.0	475	660	-	-	12	36	20
24	600	845	66	46	46	5	720	616.0	-	125	20	660	-	609.6	-	770	-	-	12	39	20

BS4504:Part 1:1969 PIPE FLANGES
Dimensions of Nominal Pressure 40 Flanges

N.B	Size																				No. of Holes
		D	C1	C2	C3	F	E	B	H1	H2	H3	N1	N2	A	G	K	X	Y	R	L
Ins	mm

3/8	10	90	16	16	16	2	40	18.2	22	35	6	28	30	17.2	-	60	90	16	4	14	4
½	15	95	16	16	16	2	45	22.4	22	38	6	32	35	21.3	-	65	95	16	4	14	4
¾	20	105	18	18	18	2	58	27.7	26	40	6	40	45	26.9	-	75	105	18	4	14	4
1"	25	115	18	18	18	2	68	34.5	28	40	6	46	52	33.7	-	85	115	18	4	14	4
1 ¼	32	140	18	18	18	2	78	43.2	30	42	6	55	60	42.4	-	100	140	18	6	18	4
1 ½	40	150	20	18	18	3	88	49.5	32	45	7	64	70	48.3	-	110	150	20	6	18	4
2"	50	165	20	20	20	3	102	62.0	34	48	8	75	85	60.3	-	125	165	22	6	18	4
2 ½	65	185	22	22	22	3	122	74.7	38	52	10	90	105	76.1	55	145	185	24	6	18	8
3	80	200	24	24	24	3	138	90.7	40	58	12	105	118	88.9	70	160	200	24	8	18	8
4	100	235	26	24	24	3	162	116.1	44	65	12	134	145	114.3	90	190	235	26	8	22	8
5	125	270	28	26	26	3	188	143.8	48	68	12	162	170	139.7	115	220	270	28	8	26	8
6	150	300	30	28	28	3	218	170.7	52	75	12	192	200	168.3	140	250	300	32	10	26	8
8	200	375	34	34	34	3	285	221.5	52	88	16	244	260	219.1	190	320	375	34	10	30	12
10	250	450	42	38	38	3	345	276.4	60	105	18	306	320	273.0	237	385	450	38	12	33	12
12	300	515	50	42	42	4	410	327.2	67	115	18	362	380	323.9	285	450	515	42	12	33	16
14	350	580	56	46	46	4	465	359.2	-	125	20	408	-	355.6	332	510	580	46	12	36	16
16	400	660	64	50	50	4	535	410.5	-	135	20	462	-	406.4	380	585	660	50	12	39	16
18	450	685	68	50	54	4	560	461.8	-	135	20	500	-	457.2	425	610	685	50	12	39	20
20	500	755	72	52	56	4	615	513.1	-	140	20	562	-	508.0	475	671	755	52	12	42	20

[ home ] [ ball valves ] [ bsp fittings ] [ hygienic tube ] [ hygienic tube fittings ] [ hygienic unions ]
[ flanges ] [ metric tube and compression fittings ] [ nominal bore welded and seamless pipe ]
[ nominal bore welded fittings ] [ other products ]

Page last updated 15th June 2004