BS4504 PN16 Flange | British Standard BS4504 PN10-PN64 dimensions

Table Of Content:

BS 4504 Flanges Specifications
BS 4504 PN16 Flange Price List
Types of EN 1092-1 BS 4504 Flange
Bs4504 Pn6 Flange Dimensions
BS4504 PN10 Flange dimensions
BS4504 PN16 Flange Dimensions
BS4504 Pn16 Flange Bolting Chart
BS4504 PN25 Flange dimensions
BS4504 Pn25 Flange Bolting Chart
BS4504 PN40 Flange dimensions
BS 4504 PN64 Plate Flange Dimensions
BS 4504 Welding Neck Flange Dimensions
BS 4504 Threaded Flange Dimensions
BS 4504 Blind Flange Dimensions
BS4504 Flange Table

Approx Bolting Torque for BS4504 Flange
Identification Of British Standard 4504 Flange
BS4504 PN16 Flange Weight
BS4504 Flange Sizes
BS4504 Flange Pressure Rating
Bs4504 Equivalent
din BS 4504 Slip On Flange Wall Thickness
Drilling Of BS4504 PN16 Blind Flange
Coating Of Bs 4504 Pn10 Flanges
Facing Types Of BS4504 Pipe Flange
EN BS4504 PN25 Forged Flange Applications
British Standard 4504 PN10 Flange Tolerances
BS4504 Gasket Dimensions

Refer British Standard BS4504 PN10-PN64 dimensions and weight chart, A complete guide for BS 4504 Flange

BS 4504 Flanges Specifications

Size In Ready Stock :

NPS: ½” to 36″

Wall Thickness :

SCH 60/ 80/ 100
SCH 10/ 20/ 40
SCH 160/ 180
SCH 120/ 140

Pressure Class :

Class 125, 150
Class 300, 400
Class 600, 900
Class 1500, 2500

Manufacturing Types :

Forged
Heat Treated
Machined

Forging Methods :

Forging
Cutting
Casting
Rolling

Testing Requirements :

Hardness test
EN 10204/3.1B
Radiography
Impact Test
Raw Materials Certificate

Coating :

Anti-Rust Oil Coating
Black coating
PE coating

Manufacturer of :

Forged
Threaded
Screwed
Plate

Use For :

Petrochemicals and acids
Nuclear power (mostly seamless)
Heavy oil refineries

Faces Types :

FF Face
RTJ Face
Male & Female
RF Face

Types :

BLRF Flanges
SORF Flanges
WNRF Flanges
SWRE Flanges

Supporting Material :

Gasket
Ring Joint
Flange Bolts

For More Information Please Contact US

Buy BS4504 PN25 Flange at competitive rate directly from manufacturers

BS 4504 PN16 Flange Price List

Nominal Diameter	Nominal pipe size in mm	Pitch Circle Diameter In mm	Thread holes	Standard	Pressure	Price In INR (India) Per Piece
DN 20	3/4" (26,9)	75	4 x 14 mm Ø	BS 4504	PN 16	536.00
DN 25	1" (33,7)	85	4 x 14 mm Ø	-	-	764.00
DN 32	1.1/4" (42,4)	100	4 x 18 mm Ø	-	-	1000.00
DN 40	1.1/2" (48,3)	110	4 x 18 mm Ø	-	-	1389.00
DN 50	2" (60,3)	125	4 x 18 mm Ø	-	-	1789.00
DN 65	76,1	145	4 x 18 mm Ø	-	-	2552.00
DN 80	88,9	160	8 x 18 mm Ø	-	-	3180.00
DN 100	108	180	8 x 18 mm Ø	-	-	3673.00
DN 100	114,3	180	8 x 18 mm Ø	-	-	4392.00
DN 125	133	210	8 x 18 mm Ø	-	-	5000.00
DN 125	139,7	210	8 x 18 mm Ø	-	-	5359.00
DN 150	159	240	8 x 22 mm Ø	-	-	5885.00
DN 150	168,3	240	8 x 22 mm Ø	-	-	6305.00
DN 200	219,1	295	12 x 22 mm Ø	BS 4504	PN 16	7088.00

Types Of EN 1092-1 BS 4504 Flange

BS 4504 Flanges

BS4504 PN16 Blind Flange

BS 4504 PN10 Slip On Flange

BS 4504 PN6 Weld Neck Flanges

BS 4504 Pn 5 Flange

BS 4504 Pn10 Flange

BS4504 Pn16 Flange

BS4504 Pn25 Flange

BS4504 Pn40 Flange

British Standard 4504 Flange

BS 4504 Plate Flange

BS 4504 Welding Neck Flange

BS 4504 Threaded Flange

DIN 86029 BS 4504 Flanges

DIN BS 3293 Flanges

EN BS 3293 Flanges

BS 4504 Standard Flanges

BS 4504 Pipe Flanges

EN 1092-1 BS 4504 Flange

BS 4504 PN 16 Forged Flange

BS 4504 PN16 Blind Flange

Bs4504 Pn6 Flange Dimensions

NPS	Pipe Flanges						RF (Raised Face)		Boss	Drilling And Diameter			Size Of Bolting	Weld Neck					Bore Diameter
(D)	(A)	(C)	(C)	(C)	(D)	(D)	(G)	(X)	(N)	(No)	(I)	(J)		(M)	(F)	(E)	(R)	(T)	(B)
10	75	12	12	12	20	28	35	2	25	4	11	50	M10	26	17.2	6	3	1.8	18.0
15	80	12	12	12	20	30	40	2	30	4	11	55	M10	30	21.3	6	3	2.0	22.0
20	90	14	14	14	24	32	50	2	40	4	11	65	M10	38	26.9	6	4	2.3	27.5
25	100	14	14	14	24	35	60	2	50	4	11	75	M10	42	33.7	6	4	2.6	34.5
32	120	14	16	14	26	35	70	2	60	4	14	90	M12	55	42.4	6	5	2.6	43.5
40	130	14	16	14	26	38	80	3	70	4	14	100	M12	62	48.3	7	5	2.6	49.5
50	140	14	16	14	28	38	90	3	80	4	14	110	M12	74	60.3	8	5	2.9	61.5
65	160	14	16	14	32	38	110	3	100	4	14	130	M12	88	76.1	9	6	2.9	77.5
80	190	16	18	16	34	42	128	3	110	4	18	150	M16	102	88.9	10	6	3.2	90.5
100	210	16	18	16	40	45	148	3	130	4	18	170	M16	130	114.3	10	6	3.6	116.0
125	240	18	20	18	44	48	178	3	160	8	18	200	M16	155	139.7	10	6	4.0	141.5
150	265	18	20	18	44	48	202	3	185	8	18	225	M16	184	168.3	12	8	4.5	170.5
200	320	20	22	20	44	55	258	3	240	8	18	280	M16	236	219.1	15	8	5.6	221.5
250	375	22	24	22	44	60	312	3	295	12	18	335	M16	290	273.0	15	10	6.3	276.5
300	440	22	24	22	44	62	365	4	355	12	22	395	M20	342	323.9	15	10	7.1	327.5
350	490	22	26	22	–	62	415	4	–	12	22	445	M20	385	355.6	15	10	7.1	359.5
400	540	22	28	22	–	65	465	4	–	16	22	495	M20	438	406.4	15	10	7.1	411.0
450	595	24	30	24	–	65	520	4	–	16	22	550	M20	492	457.0	15	12	7.1	462.0
500	645	24	30	24	–	68	570	4	–	20	22	600	M20	538	508.0	15	12	7.1	513.5
600	755	24	32	34	–	70	670	5	–	20	26	705	M24	640	610.0	16	12	7.1	616.5
700	860	24	40	38	–	70	775	5	–	24	26	810	M24	740	711.0	16	12	7.1	–
800	975	24	44	42	–	70	880	5	–	24	30	920	M27	842	813.0	16	12	7.1	–
900	1075	26	48	46	–	70	980	5	–	24	30	1020	M27	942	914.0	16	12	7.1	–
1000	1175	26	52	52	–	70	1080	5	–	28	30	1120	M27	1045	1016.0	16	12	7.1	–
1200	1405	28	60	60	–	90	1295	5	–	32	33	1340	M30	1248	1220.0	20	12	8.0	–
1400	1630	32	68	68	–	90	1510	5	–	36	36	1560	M33	1452	1420.0	20	12	8.0	–
1600	1830	34	76	76	–	90	1710	5	–	40	36	1760	M33	1655	1620.0	20	12	9.0	–
1800	2045	36	84	84	–	100	1920	5	–	44	39	1970	M36	1855	1820.0	20	15	10.0	–
2000	2265	38	92	92	–	110	2125	5	–	48	42	2180	M39	2058	2020.0	25	15	11.0	–

BS4504 PN10 Flange Dimensions

BS4504 PN16 Flange Dimensions

(DN)	(D <)/td>	(C1)	(C2)	(H1)	(H2)	(H3)	(R<)/td>	(A<)/td>	(N1)	(N2)	(B1)	(d1)	(f1)
10	90	14	14	20	35	6	3	17,2	28	30	18	40	2
15	95	14	14	20	35	6	3	21,3	32	35	22	45	2
20	105	14	14	24	38	6	4	26,9	39	45	27,5	58	2
25	115	16	16	24	38	6	4	33,7	46	52	34,5	68	2
32	140	18	16	26	40	6	5	42,4	56	60	43,5	78	2
40	150	18	16	26	42	7	5	48,3	64	70	49,5	88	3
50	165	20	18	28	45	8	5	60,3	74	84	61,5	102	3
65	185	20	18	32	45	10	6	76,1	92	104	77,5	122	3
80	200	20	20	34	50	10	6	88,9	110	118	90,5	138	3
100	220	22	20	40	52	12	6	114,3	130	140	116	162	3
125	250	22	22	44	55	12	6	139,7	158	168	141,5	188	3
150	285	24	22	44	55	12	8	168,3	184	195	170,5	212	3
200	340	26	24	44	62	16	8	219,1	234	246	221,5	268	3
250	405	29	26	46	70	16	10	273	288	298	276,5	320	3
300	460	32	28	46	78	16	10	323,9	342	350	327,5	378	4
350	520	35	30	57	82	16	10	355,6	390	400	359	438	4
400	580	38	32	63	85	16	10	406,4	444	456	411,0	490	4
450	640	42	34	68	87	16	12	457,0	490	502	462,0	550	4
500	715	46	34	73	90	16	12	508,0	546	559	513,5	610	4
600	840	52	36	83	95	18	12	610,0	650	658	616,5	725	5
700	910	60	36	83	100	18	12	711,0	750	760	-	795	5
800	1025	68	38	90	105	20	12	813,0	848	864	-	900	5
900	1125	76	40	94	110	20	12	914,0	948	968	-	1000	5
1000	1255	84	42	100	120	22	12	1016,0	1056	1072	-	1115	5
1200	1485	98	48	-	130	30	12	1220,0	1260	-	-	1330	5
1400	1685	-	52	-	145	30	12	1420,0	1465	-	-	1530	5
1600	1930	-	58	-	160	35	12	1620,0	1668	-	-	1750	5

DN = Nominal size
D = Outside Diameter
A = Outside Diameter of Neck
B1 = Bore of Type 101 And 112 Flanges
C1 = Thickness of Plate Flange
C2 = Thickness of Weld_Neck and Boss Flanges
N1 = Diameter of Weld Neck Flanges
N2 = Boss Diameter
R = corner Radius
H1 = Boss Flange Length
H2 = Weld Neck Length
H3 = Neck Length
Note : All Dimensions in mm

BS4504 Pn16 Flange Bolting Chart

( DN)	( K)	( L)	( No)	(Size)
(Millimeter)	(Millimeter)	(Millimeter)	-	(Millimeter)
10	60	14	4	M12
15	65	14	4	M12
20	75	14	4	M12
25	85	14	4	M12
32	100	18	4	M16
40	110	18	4	M16
50	125	18	4	M16
65	145	18	8**	M16
80	160	18	8	M16
100	180	18	8	M16
125	210	18	8	M16
150	240	22	8	M20
200	295	22	12	M20
250	355	26	12	M24
300	410	26	12	M24
350	470	26	16	M24
400	525	30	16	M27
450	585	30	20	M27
500	650	33	20	M30
600	770	36	20	M33
700	840	36	24	M33
800	950	39	24	M36
900	1050	39	28	M36
1000	1170	42	28	M39
1200	1390	48	32	M45
1400	1590	48	36	M45
1600	1820	56	40	M52

K = Diameter Of Bolt Circle
L = Diameter Of Bolt Hole
No = Holes Number
Size = Bolts Size

BS4504 PN25 Flange Dimensions

BS4504 Pn25 Flange Bolting Chart

(DN)	(K)	(L)	(No)	(Size)
(MM)	(MM)	(MM)	-	(MM)
10	60	14	4	M12
15	65	14	4	M12
20	75	14	4	M12
25	85	14	4	M12
32	100	18	4	M16
40	110	18	4	M16
50	125	18	4	M16
65	145	18	8	M16
80	160	18	8	M16
100	190	22	8	M20
125	220	26	8	M24
150	250	26	8	M24
200	310	26	12	M24
250	370	30	12	M27
300	430	30	16	M27
350	490	33	16	M30
400	550	36	16	M33
450	600	36	20	M33
500	660	36	20	M33
600	770	39	20	M36
700	875	42	24	M39
800	990	48	24	M45
900	1090	48	28	M45
1000	1210	56	28	M52
1200	1420	56	32	M52
1400	1640	62	36	M56
1600	1860	62	40	M56
DN	K	L	No	Size

K = Diameter Of Bolt Circle,
L = Diameter Of Bolt Hole,
Number = No. of Holes
Size = Bolts Size

BS4504 PN40 Flange supplier in India offer custom marking, stamping & Pre-shipment Inspection

BS4504 PN40 Flange Dimensions

BS 4504 PN64 Plate Flange Dimensions

DN (Size)	PN	A (millimeter)	B (millimeter)	C (millimeter)
10	2.5, 6	75	12	18
	10 &16	90	14
	25 & 40	90	14
15	2.5 & 6	80	12	22
15	10 &16	95	14
	25 & 40	95	14
20	2.5 & 6	90	14	27.5
	10 &16	105	16
	25 & 40	105	16
25	2.5 & 6	100	14	34.5
	10 &16	115	16
	25 & 40	115	16
32	2.5 & 6	120	16	43.5
	10 &16	140	18
	25 & 40	140	18
40	2.5 & 6	130	16	49.5
	10 &16	150	18
	25 & 40	150	18
50	2.5 & 6	140	16	61.5
	10 & 16	165	20
	25 & 40	165	20
65	2.5 & 6	160	16	77.5
	10 & 16	185	20
	25 & 40	185	22
80	2.5 & 6	190	18	90.5
	10 &16	200	20
	25 & 40	200	24
100	2.5 & 6	210	18	116
	10 &16	220	22
	25 & 40	235	26
125	2.5 & 6	240	20	141.5
	10 & 16	250	22
	25 & 40	270	28
150	2.5 & 6	265	20	170.5
	10 & 16	285	24
	25 & 40	300	30
200	2.5 & 6	320	22	221.5
	10 &16	340	24
	25	360	32
	40	375	36
250	2.5 & 6	375	24	276.5
	10	395	26
	16	405	29
	25	425	35
	40	450	42
300	2.5 & 6	440	24	327.5
	10	445	26
	16	460	32
	25	485	38
	40	515	48
350	2.5 & 6	490	26	359.5
	10	505	28	359.5
	16	520	35	359
	25	555	42	359.5
	40	580	54	359.5
400	2.5 & 6	540	28	411
	10	565	32
	16	580	38
	25	620	46
	40	660	60
450	2.5 & 6	595	30	462
	10	615	36
	16	640	42
	25	670	50
	40	685	66
500	2.5 & 6	645	30	513.5
	10	670	38
	16	715	46
	25	730	56
	40	755	72
600	2.5 & 6	755	32	616.5
	10	780	42
	16	840	52
	25	845	68
	40	890	84
700	2.5	860	36	To be specifiedby purchaser
800	2.5	975	38
900	2.5	1075	40
1000	2.5	1175	42
1200	2.5	1375	44
1400	2.5	1575	48
1600	2.5	1790	51
1800	2.5	1990	54
2000	2.5	2190	58

BS 4504 Welding Neck Flange Dimensions

BS 4504 Threaded Flange Dimensions

DN (Size)	PN	A (Millimeter)	B (Millimeter)	C (Millimeter)	D (Millimeter)	E (Millimeter)
10	6	75	25	12	20	3
	16	90	30	14	20
	40	90	30	16	22
15	6	80	30	12	20	3
	16	95	35	14	20
	40	95	35	16	22
20	6	90	40	14	24	4
	16	105	45	16	24
	40	105	45	18	26
25	6	100	50	14	24	4
	16	115	52	16	24
	40	115	52	18	28
32	6	120	60	14	26	5
	16	140	60	16	26
	40	140	60	18	30
40	6	130	70	14	26	5
	16	150	70	16	26
	40	150	70	18	32
50	6	140	80	14	28	5
	16	165	84	18	28
	40	165	84	20	34
65	6	160	100	14	32	6
	16	185	104	18	32
	40	185	104	22	38
80	6	190	110	16	34	6
	16	200	118	20	34
	40	200	118	24	40
100	6	210	130	16	40	6
	16	220	140	20	40
	40	235	145	24	44

BS 4504 Blind Flange Dimensions

DN (Size)	PN	A (mm)	B (mm)	C (mm)
10	2.5, 6	75	12	–
	10 &16	90	14	–
	25 & 40	90	16	–
15	2.5 & 6	80	12	–
	10 &16	95	14	–
	25 & 40	95	16	–
20	2.5 & 6	90	14	–
	10 &16	105	16	–
	25 & 40	105	18	–
25	2.5 & 6	100	14	–
	10 &16	115	16	–
	25 & 40	115	18	–
32	2.5 & 6	120	14	–
	10 &16	140	16	–
	25 & 40	140	18	–
40	2.5 & 6	130	14	–
	10 &16	150	16	–
	25 & 40	150	18	–
50	2.5 & 6	140	14	–
	10 & 16	165	18	–
	25 & 40	165	20	–
65	2.5 & 6	160	14	55
	10 & 16	185	18	55
	25 & 40	185	22	55
80	2.5 & 6	190	16	70
	10 &16	200	20	70
	25&40	200	24	70
100	2.5 & 6	210	16	90
	10 &16	220	20	90
	25&40	235	24	90
125	2.5 & 6	240	18	115
	10 & 16	250	22	115
	25 & 40	270	26	115
150	2.5 & 6	265	18	140
	10 & 16	285	22	140
	25 & 40	300	28	140
200	2.5 & 6	320	20	190
	10 &16	340	24	190
	25	360	30	190
	40	375	34	190
250	2.5 & 6	375	22	235
	10	395	26	235
	16	405	26	235
	25	425	32	235
	40	450	38	235

BS4504 Flange Table

Approx Bolting Torque For BS4504 Flange

Identification Of British Standard 4504 Flange

BS4504 PN16 Flange Weight

Normal Size Of Steel Pipe		Dimensions In Millimeter		BS4504 PN16 Flange Weight In Kilogram
Normal Size Of Steel Pipe In Inches	Size In Millimeter	BS4504 PN16 Flanges Outer Daimeter (O.D.) In (MM)	150# Flanges Wall Thickness Of (D) In M)	(BS4504 PN16 Slip On Flanges) (BS4504 PN16 Socket Weld Flanges)	(BS4504 PN16 Weld Neck Flanges)	(BS4504 PN16 Blind Flanges)
1/2	15	88.9	11.2	0.4	0.5	0.4
3/4	20	98.6	12.7	0.6	0.7	0.6
1	25	108	14.2	0.8	1	0.9
1 1/4	32	117.3	15.7	1	1.3	1.2
1 1/2	40	127	17.5	1.3	1.7	1.5
2	50	152.4	19.1	2.1	2.6	2.4
2 1/2	65	177.8	22.4	3.3	4.1	3.9
3	80	190.5	23.9	3.9	4.9	4.9
3 1/2	90	215.9	23.9	4.8	6.1	6.2
4	100	228.6	23.9	5.3	6.8	7.0
5	125	254	23.9	6.1	8.6	8.6
6	150	279.4	25.4	7.5	10.6	11.3
8	200	342.9	28.4	12.1	17.6	19.6
10	250	406.4	30.2	16.5	24	28.6
12	300	482.6	31.8	26.2	36.5	43.2
14	350	533.4	35.1	34.6	48.4	58.1
16	400	596.9	36.6	44.8	60.6	76.1
18	450	635	39.6	48.9	68.3	93.7
20	500	698.5	42.9	61.9	84.5	122.0

Manufacturer of BS4504 PN10 Flange in Female, Flat, Raised, Tongue, Male, RJ, RTJ, Groove face

BS4504 Flange Sizes

BS4504 Flange Pressure Rating

Bs4504 Equivalent

C22.8	P250GH	A105	SA105
15Mo3	16Mo3
13CrMo44	13CrMo4-5	A182F12	SA182F12
10CrMo910	11CrMo9-10	A182F22	SA182F22
1.4901		A182F92	SA182F92		X10CrWMoVNb9-2
1.4903		A182F91	SA182F91		X10CrMoVNb9-1
1.4905	E911				X11CrMoVWNb9-11
1.4910					X6CrNiMoN17-12-2
1.4922					X20CrMoV11-1
1.4923					X22CrMoV12-1
1.4948					X6CNi18-10
1.4981					X8CrNiMoNb16-6
1.4988					X8CrNiMoVNb16-13
1.6311					20MnMoNi45
1.6368		WB36			15NiCuMoNb5
W/TSTE355	P355	A350LF2	SA350LF2
W/TSTE420	P420
W/TSTE460					-
12CrMo19.5 (V/G)		A182/ F5	SA182/ F5
1.5637					12Ni14
1.7715					14MoV63
ST 52.3	S355J2 N
42CrMo4
25CrMo4
14MoV63
10Ni14 / 12Ni14
1.4021					X20Cr13
1.4057					X17CrNi16 2
1.4122					X39CrMo17 1
1.4301		A182/A479 304	SA182/SA479 304L		X5CrNi18 10
1.4305					X8CrNiS18 9
1.4306		A182/A479 304	SA182/SA479 304L		X2CrNi19 11
1.4307					X2CrNi18 9
1.4313					X3CrNiMo13 4
1.4401					X5CrNiMo17 12 2
1.4404		A182/A479 316	SA182/SA479 316L		X2CrNiMo17 12 2
1.4410		A182/A479 F53	SA182/SA479 F53	S 32750	X2CrNiMoN25 7 4
1.4435				S 31603	X2CrNiMo18 14 3
1.4439				S 31726	X2CrNiMoN17 13 5

DIN BS 4504 Slip On Flange Wall Thickness

NPS	Outer Diameter (O.D)	Minimum Wall Thickness (T)	(RF) Diameter (R)	Number of Bolt Holes	Holes Diameter	BC (Bolt Circle)	SO Bore Inner Diameter (SB)	WN Bore Inner Diameter (WB)	Diameter Hub Base (HB)	Diameter of Hub Top (HT)	SO Length (SL)	WN Length (WL)
¹⁄₂	3.50	0.38	1.38	4	0.62	2.38	0.88	0.62	1.19	0.84	0.56	1.81
³⁄₄	3.88	0.44	1.69	4	0.62	2.75	1.09	0.82	1.50	1.05	0.56	2.00
1	4.25	0.50	2.00	4	0.62	3.12	1.36	1.05	1.94	1.32	0.62	2.12
1¹⁄₄	4.62	0.56	2.50	4	0.62	3.50	1.70	1.38	2.31	1.66	0.75	2.19
1¹⁄₂	5.00	0.62	2.88	4	0.62	3.88	1.95	1.61	2.56	1.90	0.81	2.38
2	6.00	0.69	3.62	4	0.75	4.75	2.44	2.07	3.06	2.38	0.94	2.44
2¹⁄₂	7.00	0.81	4.12	4	0.75	5.50	2.94	2.47	3.56	2.88	1.06	2.69
3	7.50	0.88	5.00	4	0.75	6.00	3.57	3.07	4.25	3.50	1.12	2.69
3¹⁄₂	8.50	0.88	5.50	8	0.75	7.00	4.07	3.55	4.81	4.00	1.19	2.75
4	9.00	0.88	6.19	8	0.75	7.50	4.57	4.03	5.31	4.50	1.25	2.94
5	10.00	0.88	7.31	8	0.88	8.50	5.66	5.05	6.44	5.56	1.38	3.44
6	11.00	0.94	8.50	8	0.88	9.50	6.72	6.07	7.56	6.63	1.50	3.44
8	13.50	1.06	10.62	8	0.88	11.75	8.72	7.98	9.69	8.63	1.69	3.94
10	16.00	1.12	12.75	12	1.00	14.25	10.88	10.02	12.00	10.75	1.88	3.94
12	19.00	1.19	15.00	12	1.00	17.00	12.88	12.00	14.38	12.75	2.12	4.44
14	21.00	1.31	16.25	12	1.12	18.75	14.14	13.25	15.75	14.00	2.19	4.94
16	23.50	1.38	18.50	16	1.12	21.25	16.16	15.25	18.00	16.00	2.44	4.94
18	25.00	1.50	21.00	16	1.25	22.75	18.18	17.25	19.88	18.00	2.62	5.44
20	27.50	1.62	23.00	20	1.25	25.00	20.20	19.25	22.00	20.00	2.81	5.62
22	29.50	1.75	25.25	20	1.38	27.25	22.22	21.25	24.25	22.00	3.07	5.82
24	32.00	1.81	27.25	20	1.38	29.50	24.25	23.25	26.12	24.00	3.19	5.94

Drilling Of BS4504 PN16 Blind Flange

Nominal Pipe Diameter	Pressure Rating In (PN)
Size Of **Nominal BSP Pipe	PN 6	PN 10	PN 16	PN 25	PN 40
DN 10	75	90	90	90	90	O.D.
3/8"	50	60	60	60	60	PCD (B.C.)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diameter of holes
DN 15	80	95	95	95	95	O.D.
1/2"	55	65	65	65	65	PCD (B.C.)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diameter of holes
DN 20	90	105	105	105	105	O.D.
3/4"	65	75	75	75	75	PCD (b.c.)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diameter of holes
DN 25	100	115	115	115	115	O.D.
1"	75	85	85	85	85	PCD (b.c.)
	4 x 11	4 x 14	4 x 14	4 x 14	4 x 14	# of holes x diameter of holes
DN 32	120	140	140	140	140	O.D.
1 1/4"	90	100	100	100	100	PCD (b.c.)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diameter of holes
DN 40	130	150	150	150	150	O.D.
1 1/2"	100	110	110	110	110	PCD (b.c.)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diameter of holes
DN 50	140	165	165	165	165	O.D.
2"	110	125	125	125	125	PCD (b.c.)
	4 x 14	4 x 18	4 x 18	4 x 18	4 x 18	# of holes x diameter of holes
DN 65	160	185	185	185	185	O.D.
2 1/2"	130	145	145	145	145	PCD (b.c.)
	4 x 14	4 x 18	4 x 18	8 x 18	8 x 18	# of holes x diameter of holes
DN 80	190	200	200	200	200	O.D.
3"	150	160	160	160	160	PCD (b.c.)
	4 x 18	8 x 18	8 x 18	8 x 18	8 x 18	# of holes x diameter of holes
DN 100	210	220	220	235	235	O.D.
4"	170	180	180	190	190	PCD (b.c.)
	4 x 18	8 x 18	8 x 18	8 x 22	8 x 22	# of holes x diameter of holes
DN 125	240	250	250	270	270	O.D.
5"	200	210	210	220	220	PCD (b.c.)
	8 x 18	8 x 18	8 x 18	8 x 26	8 x 26	# of holes x diameter of holes
DN 150	265	285	285	300	300	O.D.
6"	225	240	240	250	250	PCD (b.c.)
	8 x 18	8 x 22	8 x 22	8 x 26	8 x 26	# of holes x diameter of holes
DN 175		315	315	330	350	O.D.
7"		270	270	280	295	PCD (b.c.)
		8 x 22	8 x 22	12 x 26	12 x 30	# of holes x diameter of holes
DN 200	320	340	340	360	375	O.D.
8"	280	295	295	310	320	PCD (b.c.)
	8 x 18	8 x 22	12 x 22	12 x 26	12 x 30	# of holes x diameter of holes
DN 250	375	395	405	425	450	O.D.
10"	335	350	355	370	385	PCD (b.c.)
	12 x 18	12 x 22	12 x 26	12 x 30	12 x 33	# of holes x diameter of holes
DN 300	440	445	460	485	515	O.D.
12"	395	400	410	430	450	PCD (b.c.)
	12 x 22	12 x 22	12 x 26	16 x 30	16 x 33	# of holes x diameter of holes
DN 350	490	505	520	555	580	O.D.
14"	445	460	470	490	510	PCD (b.c.)
	12 x 22	16 x 22	16 x 26	16 x 33	16 x 36	# of holes x diameter of holes
DN 400	540	565	580	620	660	O.D.
16"	495	515	525	550	585	PCD (b.c.)
	16 x 22	16 x 26	16 x 30	16 x 36	16 x 39	# of holes x diameter of holes
DN 500	645	670	715	730	755	O.D.
20"	600	620	650	660	670	PCD (b.c.)
	20 x 22	20 x 26	20 x 33	20 x 36	20 x 42	# of holes x diameter of holes
DN 600	755	780	840	845		O.D.
24"	705	725	770	770		PCD (b.c.)
	20 x 24	20 x 27	20 x 33	20 x 36		# of holes x diameter of holes

Coating Of Bs 4504 Pn10 Flanges

Anti-rust Paint
Zinc Plated
Oil Black Paint
Yellow Transparent
Hot Dip Galvanized
Cold Galvanized

Facing Types Of BS4504 Pipe Flange

Type A: Flat Face (FF)
Type B: Raised Face (RF)
Type C: Tongue Face (TF)
Type D: Grooved Face (GF)
1Type E: Spigo
Type F: Recess
Type G: Ring Recess
Type H: O-Ring Groove

EN BS4504 PN25 Forged Flange Applications

Specialty Chemicals
Power Generation
Condensers
Chemical Equipment
Gas Processing
Pulp and Paper Industry

Sea Water Equipment
Pharmaceutical Equipment
Off-Shore Oil Drilling Companies
Petrochemicals
Heat Exchangers
Pharmaceuticals

British Standard 4504 PN10 Flange Tolerances

1) Tolerance of O.D (outside diameter):

for O.D < 200 millimeter , ±1.0 millimeter (faced) while ±2.0 millimeter (not faced).
for 200 millimeter < O.D < 300 millimeter , ±1.5 millimeter (faced) while ±2.0 millimeter (not faced).
for 300 millimeter < O.D < 400 millimeter , ±2.0 millimeter (faced) while ±3.0 millimeter (not faced).
for O.D < 400 millimeter , ±2.0 millimeter (faced) while ±5.0 millimeter (not faced).

2) Tolerance of I.D (inside bore diameter):

for I.D < 100 (mm), ±0.5 (mm)(other types) while -1.0 (mm)(weld neck types).
for 100 (mm) < I.D < 400 (mm), +1.0 (mm)(other types) while -1.5 (mm)(weld neck types).
for I.D < 400 (mm), +1.5 (mm)(other types) while -2.0 (mm) (weld neck types).

3) Tolerance of flange (t) (thickness):

for t < 10 millimeter , ±0.5 millimeter (both sides) while ±1.0 millimeter (one side).
for 10 millimeter < t < 20 millimeter , ±0.8 millimeter (both sides) while ±1.3 millimeter (one side).
for 20 millimeter < t < 30 millimeter , ±1.0 millimeter (both sides) while ±1.5 millimeter (one side).
for 30 millimeter < t < 50 millimeter , ±1.0 millimeter (both sides) while ±1.5 millimeter (one side).
for W.T < 50 millimeter , ±1.5 millimeter (both sides) while ±2.0 millimeter (one side).

4) Tolerance of flange overall H (height):

for H < 80 (mm), ±0.5 (mm).
for 80 (mm) < H < 250 (mm), ±2.0 (mm).
for H < 250 (mm), ±3.0 (mm).

5) Tolerance of diameter of G (raised face):

for g < 80 (mm), -1.0 (mm).
for 80 (mm) < g < 300 (mm), -2.0 (mm).
for g < 300 (mm), -3.0 (mm).

Check Surface Finish of BS4504 PN64 Flange Material before selecting a gasket

BS4504 Gasket Dimensions

(Normal Size Of Steel Pipes) In Inch	(I.D.) Inner Daimeter Gasket	(O.D.) Outer Daimeter Gasket
(Normal Size Of Steel Pipes) In Inch	(I.D.) Inner Daimeter Gasket	Class 150#/ LB	Class 300#/ LB	Class 400#/ LB	Class 600#/ LB	Class 900#/ LB
1/2	0.84	1.875	2.125	2.125	2.125	2.50
3/4	1.06	2.25	2.625	2.625	2.625	2.75
1	1.31	2.625	2.875	2.875	2.875	3.125
1 1/4	1.66	3	3.25	3.25	3.25	3.50
1 1/2	1.91	3.375	3.75	3.75	3.75	3.875
2	2.38	4.125	4.375	4.375	4.375	5.625
2 1/2	2.88	4.875	5.125	5.125	5.125	6.50
3	3.50	5.375	5.875	5.875	5.875	6.625
4	4.50	6.875	7.125	7.00	7.625	8.125
5	5.56	7.75	8.50	8.375	9.50	9.75
6	6.62	8.75	9.875	9.75	10.50	11.375
8	8.62	11	12.125	12.00	12.625	14.125
10	10.75	13.375	14.25	14.125	15.75	17.125
12	12.75	16.125	16.625	16.50	18.00	19.625