Flange Sizes Chart – DIN, ANSI, PN16 & More | Solenoid-Valve.World

Flange Size Reference Guide – DIN, ANSI & PN Standards

When selecting solenoid valves or industrial components, choosing the correct flange size is critical for safe, leak-free installation. At Solenoid-Valve.World, we provide this reference to help you easily identify standard flange dimensions across global specifications such as DIN, PN16, and ANSI.

This guide includes common flange diameters, bolt circle patterns, and pressure class compatibility—ideal for engineers, installers, and procurement professionals.

Flange size charts according to NB (Nominal Bore Size), giving the flange diameter, Thickness and PCD (Pitch circle diameter) or diameter of bolt holes, Number of bolt holes and bolt diameter and length.

This flange data guide covers PN6, PN10, PN16, PN25, PN40, PN64, Table D, Table E, Table F, Table H, ANSI150Lb and ANSI300Lb,

Flanged Valve Compatibility

Our solenoid valves are available with DIN and ANSI flanged ends, ensuring global compatibility across pipeline systems. Popular flange valve options include:

PN16 solenoid valves (ideal for European systems)

ANSI Class 150 valves (for North American pipelines)

Custom flanged adapters on request

Browse our flanged solenoid valve collection for available sizes and materials including brass, stainless steel, ductile iron and cast iron.

How to Measure a Flange

Measure the outer diameter of the flange

Count the number of bolt holes

Measure the bolt circle diameter (BCD or PCD)

Note the bolt hole diameter

Identify the pressure class (PN or ANSI)

Need Help Identifying a Flange?

Our experts are ready to help you match flange sizes to the correct solenoid valve or fitting. Whether you're designing a new system or retrofitting an old one, we can provide custom advice and data sheets on request.

Related Pages.

Flanged solenoid valves.

All valves by connection size and type.

Valve by function 2, 3 and 5 way

Chemical compatability charts

FAQ's

Explanation of DN and PCD

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1/2" NB (DN15) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	80mm	12mm	55mm	4	M10 / 45
PN10	95mm	14mm	65mm	4	M12 / 50
PN16	95mm	14mm	65mm	4	M12 / 50
PN25	95mm	16mm	65mm	4	M12 / 55
PN40	95mm	16mm	65mm	4	M12 / 55
PN64	105mm	20mm	75mm	4	M12 / 70
Table D	3.3/4"	3/16"	2.5/8"	4	M12 / 25
Table E	3.3/4"	1/4"	2.5/8"	4	M12 / 30
Table F	3.3/4"	3/8"	2.5/8"	4	M12 / 40
Table H	4.1/2"	1/2"	3.1/4"	4	M16 / 50
ANSI 150	3.1/2"	7/16"	2.3/8"	4	M12 / 45
ANSI 300	3.3/4"	9/16"	2.5/8"	4	M12 / 50

3/4" NB (DN20) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	90mm	14mm	65mm	4	M10 / 50
PN10	105mm	16mm	75mm	4	M12 / 55
PN16	105mm	16mm	75mm	4	M12 / 55
PN25	105mm	16mm	75mm	4	M12 / 55
PN40	105mm	18mm	75mm	4	M12 / 55
PN64	130mm	22mm	90mm	4	M16 / 70
Table D	4"	3/16"	2.7/8"	4	M12 / 25
Table E	4"	1/4"	2.7/8"	4	M12 / 30
Table F	4"	3/8"	2.7/8"	4	M12 / 40
Table H	4.1/2"	1/2"	3.1/4"	4	M16 / 50
ANSI 150	3.7/8"	1/2"	2.3/4"	4	M12 / 50
ANSI 300	4.5/8"	5/8"	3.1/2"	4	M12 / 55

1" NB (DN25) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	100mm	14mm	75mm	4	M10 / 50
PN10	115mm	16mm	85mm	4	M12 / 55
PN16	115mm	16mm	85mm	4	M12 / 55
PN25	115mm	18mm	85mm	4	M12 / 65
PN40	115mm	18mm	85mm	4	M12 / 65
PN64	140mm	24mm	100mm	4	M16 / 75
Table D	4.1/2"	3/16"	3.1/4"	4	M12 / 25
Table E	4.1/2"	9/32"	3.1/4"	4	M12 / 30
Table F	4.3/4"	3/8"	3.7/16"	4	M16 / 45
Table H	4.3/4"	9/16"	3.7/16"	4	M16 / 50
ANSI 150	4.1/4"	9/16"	3.1/8"	4	M12 / 50
ANSI 300	4.7/8"	11/16"	3.1/2"	4	M16 / 65

11/4" NB (DN32) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	120mm	16mm	90mm	4	M12 / 55
PN10	140mm	16mm	100mm	4	M16 / 55
PN16	140mm	16mm	100mm	4	M16 / 55
PN25	140mm	18mm	100mm	4	M16 / 55
PN40	140mm	18mm	100mm	4	M16 / 65
PN64	155mm	24mm	110mm	4	M20 / 75
Table D	4.3/4"	1/4"	3.7/16"	4	M12 / 30
Table E	4.3/4"	5/16"	3.7/16"	4	M12 / 40
Table F	5.1/4"	1/2"	3.7/8"	4	M16 / 45
Table H	5.1/4"	11/16"	3.7/8"	4	M16 / 55
ANSI 150	4.5/8"	5/8"	2.3/8"	4	M12 / 55
ANSI 300	5.1/4"	3/4"	3.7/8"	4	M12 / 70

11/2" NB (DN40) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	130mm	16mm	100mm	4	M12 / 55
PN10	150mm	16mm	110mm	4	M16 / 55
PN16	150mm	16mm	110mm	4	M16 / 55
PN25	150mm	20mm	110mm	4	M16 / 70
PN40	150mm	20mm	110mm	4	M16 / 70
PN64	170mm	26mm	125mm	4	M20 / 80
Table D	5.1/4"	1/4"	3.7/8"	4	M12 / 30
Table E	5.1/4"	11/32"	3.7/8"	4	M12 / 40
Table F	5.1/2"	1/2"	4.1/8"	4	M16 / 55
Table H	5.1/2"	11/16"	4.1/8"	4	M16 / 55
ANSI 150	5"	11/16"	2.7/8"	4	M12 / 55
ANSI 300	6.1/8"	13/16"	4.1/2"	4	M16 / 75

2" NB (DN50) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	140mm	16mm	110mm	4	M12 / 55
PN10	165mm	18mm	125mm	4	M16 / 65
PN16	165mm	18mm	125mm	4	M16 / 65
PN25	165mm	20mm	125mm	4	M16 / 70
PN40	165mm	20mm	125mm	4	M16 / 70
PN64	180mm	26mm	135mm	4	M20 / 80
Table D	6"	5/16"	4.1/2"	4	M16 / 40
Table E	6"	3/8"	4.1/2"	4	M16 / 45
Table F	6.1/2"	5/8"	5"	4	M16 / 55
Table H	6.1/2"	3/4"	5"	4	M16 / 55
ANSI 150	6"	3/4"	4.3/4"	4	M16 / 70
ANSI 300	6.1/2"	7/8"	5"	8	M16 / 75

21/2" NB (DN65) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	160mm	16mm	130mm	4	M12 / 65
PN10	185mm	18mm	145mm	4	M16 / 65
PN16	185mm	18mm	145mm	4	M16 / 65
PN25	185mm	22mm	145mm	8	M16 / 70
PN40	185mm	22mm	145mm	8	M16 / 70
PN64	205mm	26mm	160mm	8	M20 / 80
Table D	6.1/2"	5/16"	5"	4	M16 / 40
Table E	6.1/2"	13/32"	5"	4	M16 / 45
Table F	7.1/4"	5/8"	5.3/4"	8	M16 / 55
Table H	7.1/4"	3/4"	5.3/4"	8	M16 / 55
ANSI 150	7"	7/8"	5.1/2"	4	M16 / 70
ANSI 300	7.1/2"	1"	5.7/8"	8	M20 / 75

3" NB (DN80) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	190mm	18mm	150mm	4	M16 / 65
PN10	200mm	20mm	160mm	8	M16 / 70
PN16	200mm	20mm	160mm	8	M16 / 70
PN25	200mm	24mm	160mm	8	M16 / 75
PN40	200mm	24mm	160mm	8	M16 / 75
PN64	215mm	30mm	170mm	8	M20 / 90
Table D	7.1/4"	3/4"	5.3/4"	4	M16 / 45
Table E	7.1/4"	7/16"	5.3/4"	4	M16 / 45
Table F	8"	5/8"	6.1/2"	8	M16 / 55
Table H	8"	7/8"	6.1/2"	8	M16 / 70
ANSI 150	7.1/2"	1/16"	6"	4	M16 / 75
ANSI 300	7.1/4"	1.1/8"	6.5/8"	8	M20 / 90

4" NB (DN100) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	210mm	18mm	170mm	4	M16 / 65
PN10	220mm	20mm	180mm	8	M16 / 70
PN16	220mm	20mm	180mm	8	M16 / 70
PN25	235mm	26mm	190mm	8	M20 / 80
PN40	235mm	26mm	190mm	8	M20 / 80
PN64	250mm	32mm	200mm	8	M24 / 90
Table D	8.1/2"	3/8"	7"	4	M16 / 45
Table E	8.1/2"	1/2"	7"	8	M16 / 50
Table F	9"	3/4"	7.1/2"	8	M26 / 65
Table H	9"	1"	7.1/2"	8	M26 / 75
ANSI 150	9"	15/16"	7.1/2"	8	M16 / 75
ANSI 300	10"	1.1/4"	7.7/8"	8	M20 / 95

5" NB (DN125) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	265mm	20mm	225mm	8	M16 / 70
PN10	285mm	22mm	240mm	8	M20 / 70
PN16	285mm	22mm	240mm	8	M20 / 70
PN25	300mm	28mm	250mm	8	M24 / 80
PN40	300mm	30mm	250mm	8	M24 / 90
PN64	345mm	36mm	280mm	8	M30 / 105
Table D	11"	1/2"	9.1/4"	8	M16 / 50
Table E	11"	11/16"	9.1/4"	8	M20 / 65
Table F	12"	7/8"	10.1/4"	12	M20 / 70
Table H	12"	1.1/8"	10.1/4"	8	M20 / 80
ANSI 150	11"	1"	9.1/2"	8	M20 / 80
ANSI 300	12.1/2"	1.7/16"	10.5/8"	8	M20 / 105

6" NB (DN150) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	240mm	20mm	200mm	8	M16 / 70
PN10	250mm	22mm	210mm	8	M16 / 70
PN16	250mm	22mm	210mm	8	M16 / 70
PN25	270mm	28mm	220mm	8	M24 / 80
PN40	270mm	28mm	220mm	8	M24 / 80
PN64	295mm	34mm	240mm	8	M27 / 100
Table D	10"	1/2"	8.1/4"	8	M16 / 50
Table E	10"	9/16"	8.1/4"	8	M16 / 50
Table F	11"	7/8"	9.1/4"	8	M20 / 70
Table H	11"	1.1/8"	9.1/4"	8	M20 / 80
ANSI 150	10"	15/16"	8.1/2"	8	M20 / 80
ANSI 300	11"	1.3/8"	9.1/4"	9	M20 / 100

8" NB (DN200) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	320mm	22mm	280mm	8	M16 / 70
PN10	340mm	24mm	295mm	8	M20 / 75
PN16	340mm	24mm	295mm	12	M20 / 75
PN25	360mm	30mm	310mm	12	M24 / 90
PN40	375mm	34mm	320mm	12	M27 / 90
PN64	415mm	46mm	345mm	12	M33 / 130
Table D	13.1/4"	1/2"	11.1/2"	8	M16 / 50
Table E	13.3/4"	9/16"	11.1/2"	8	M20 / 65
Table F	14.1/2"	7/8"	12.3/4"	12	M20 / 75
Table H	14.1/2"	1.1/8"	12.3/8"	12	M20 / 90
ANSI 150	13.1/2"	15/16"	11.3/4"	8	M20 / 90
ANSI 300	15"	1.3/8"	13"	12	M22 / 105

10" NB (DN250) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	375mm	24mm	335mm	12	M16 / 70
PN10	395mm	26mm	350mm	12	M20 / 80
PN16	405mm	26mm	355mm	12	M24 / 80
PN25	425mm	38mm	370mm	12	M24 / 90
PN40	450mm	42mm	385mm	12	M30 / 120
PN64	470mm	54mm	400mm	12	M33 / 150
Table D	16"	5/8"	14"	8	M20 / 55
Table E	16"	7/8"	14"	12	M20 / 70
Table F	17"	1.1/8"	15"	12	M22 / 80
Table H	17"	1.3/8"	15"	12	M22 / 100
ANSI 150	16"	1.3/16"	14.1/4"	12	M22 / 95
ANSI 300	12.1/2"	1.7/16"	10.5/8"	16	M20 / 105

12" NB (DN300) Flange Table Dimensions

Type:	Diameter	Thickness	PCD	No. of holes	Diameter / Bolt Length
PN6	440mm	24mm	395mm	12	M20 / 70
PN10	445mm	26mm	400mm	12	M20 / 80
PN16	460mm	26mm	410mm	12	M24 / 80
PN25	485mm	40mm	430mm	16	M27 / 110
PN40	515mm	50mm	450mm	16	M30 / 140
PN64	530mm	62mm	460mm	16	M33 / 160
Table D	18"	5/8"	16"	12	M20 / 65
Table E	18"	7/8"	16"	12	M22 / 80
Table F	19.1/4"	1.1/8"	17.1/4"	16	M22 / 90
Table H	19.1/4"	1.3/8"	17.1/4"	16	M22 / 105
ANSI 150	19"	1.3/16"	17"	12	M22 / 100
ANSI 300	20.1/2"	1.7/16"	17.3/4"	16	M28 / 130

JIS10K Flange Dimension Tables

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JIS 10K Flange dimensions

Nominal Dia. of Flange	Outside Dia. of Flange D	Sectional Dimensions of flange												Nominal Bolt Size	Welding		Weight (kg)
		Dia. of Bolt Circle C	Dia.of Raised Face g	Inside Dia.of Flange do	Outside Dia.of Applicable Pipe	f	T	Dia.of Hub		Radius r	Raised Face	Hole Dia. h	Number of Bolt Holes		W1	W2
		Dia. of Bolt Circle C	Dia.of Raised Face g	Inside Dia.of Flange do	Outside Dia.of Applicable Pipe	f	T	a	b	Radius r	Raised Face	Hole Dia. h	Number of Bolt Holes		W1	W2
10 15 20 25 32	90 95 100 125 135	65 70 75 90 100	46 51 56 67 76	17.8 22.2 27.7 34.5 43.2	17.3 21.7 27.2 34 42.7	12 12 14 14 16	-- -- -- -- --	-- -- -- -- --	-- -- -- -- --	-- -- -- -- --	1 1 1 1 2	15 15 15 19 19	4 4 4 4 4	M12 M12 M12 M16 M16	5 5 5 5 6	2.5 3 3 3 3	0.52 0.57 0.73 1.13 1.48
50 50 65 80 (90)	140 155 175 185 195	105 120 140 150 160	81 96 116 126 136	49.1 61.1 77.1 90 102.6	48.6 60.5 76.3 89.1 101.6	-- 16 18 18 18	-- -- -- -- --	-- -- -- -- --	-- -- -- -- --	-- -- -- -- --	2 2 2 2 2	19 19 19 19 19	4 4 4 8 8	M12 M12 M12 M12 M12	6 6 6.5 6.5 6.5	3 3 4 4 4	1.56 1.88 2.6 2.61 2.76
100 125 150 (175) 200	210 250 280 305 330	175 210 240 265 290	151 182 212 237 262	115.4 141.2 166.6 192.1 218	114 139.8 165.2 190.7 216.3	18 20 22 22 22	-- -- -- -- --	-- -- -- -- --	-- -- -- -- --	-- -- -- -- --	2 2 2 2 2	19 23 23 23 23	8 8 8 12 12	M12 M20 M20 M20 M20	7 7.5 8 9 9	4 4 5 5 6	3.14 4.77 6.34 6.82 7.53
(225) 250 300	350 400 445	310 355 400	282 324 368	243.7 269.5 321	241.8 267.4 318.5	22 24 24	- 36 38	- 288 340	- 292 346	- 6 6	2 2 3	23 25 25	12 12 16	M20 M22 M22	9 10 10	6 6 6	7.74 12.7 13.8
350 400 450 500 550	490 560 620 675 745	445 510 565 620 680	413 475 530 585 640	358.1 409 460 511 562	355.6 406.4 457.2 508 558.8	26 28 30 30 32	42 44 48 48 52	380 436 496 548 604	386 442 502 554 610	6 6 6 6 6	3 3 3 3 3	25 27 27 27 33	16 16 20 20 20	M22 M24 M24 M24 M30	12 12 14 14 15	7 7 8 8 9	18.2 25.2 33 37.6 49.7
600 650 700 750 800	795 845 905 970 1020	730 780 840 900 950	690 740 800 855 905	613 664 715 766 817	609.6 660.4 711.2 762 812.8	32 34 345 36 36	52 56 58 62 64	656 706 762 816 868	662 712 770 824 876	6 6 6 6 6	3 3 3 3 3	33 33 33 33 33	24 24 24 24 28	M30 M30 M30 M30 M30	16 16 17 18 19	10 10 10 11 12	52.6 60.6 70.6 85.8 91.2
850 900 1000 (1100) 1200	1070 1120 1235 1345 1465	1000 1050 1160 1270 1380	955 1005 1110 1220 1325	868 919 1021 1123 1225	863.6 914.4 1016 1117.6 1219.2	36 38 40 42 44	66 70 74 -- --	920 971 1073 -- --	928 979 1081 -- --	6 6 6 -- --	3 3 3 3 3	33 33 39 39 39	28 28 28 28 32	M30 M30 M36 M36 M36	19 22 22	12 14 14	98.6 109 133
*1350 (1500)	1630 1795	1540 1700	1480 1635	-- --	1371.6 1524.0	48 50	-- --	-- --	-- --	-- --	3 3	45 45	36 40	M42 M42

ANSI Flange and Bolt Dimensions - 150 lb to 2500 lb - ASME/ANSI B16.5

Diameters and bolt circles for standard ASME B16.5 flanges - 1/4 to 24 inches - 150 psi to 2500 psi

suitable for ANSI150Lb Flange Solenoid Valves

Nominal Pipe Size NPS (inches)	150 psi
Nominal Pipe Size NPS (inches)	Diameter of Flange (inches)	No. of Bolts	Diameter of Bolts (inches)	Bolt Circle (inches)
1/4	3-3/8	4	1/2	2-1/4
1/2	3-1/2	4	1/2	2-3/8
3/4	3-7/8	4	1/2	2-3/4
1	4-1/4	4	1/2	3-1/8
1-1/4	4-5/8	4	1/2	3-1/2
1-1/2	5	4	1/2	3-7/8
2	6	4	5/8	4-3/4
2-1/2	7	4	5/8	5-1/2
3	7-1/2	4	5/8	6
3-1/2	8-1/2	8	5/8	7
4	9	8	5/8	7-1/2
5	10	8	3/4	8-1/2
6	11	8	3/4	9-1/2
8	13-1/2	8	3/4	11-3/4
10	16	12	7/8	14-1/4
12	19	12	7/8	17
14	21	12	1	18-3/4
16	23-1/2	16	1	21-1/4
18	25	16	1-1/8	22-3/4
20	27-1/2	20	1-1/8	25
24	32	20	1-1/4	29-1/2

Nominal Pipe Size NPS (inches)	300 psi
Nominal Pipe Size NPS (inches)	Diameter of Flange (inches)	No. of Bolts	Diameter of Bolts (inches)	Bolt Circle (inches)
1/4	3-3/8	4	1/2	2-1/4
1/2	3-3/4	4	1/2	2-5/8
3/4	4-5/8	4	5/8	3-1/4
1	4-7/8	4	5/8	3-1/2
1-1/4	5-1/4	4	5/8	3-7/8
1-1/2	6-1/8	4	3/4	4-1/2
2	6-1/2	8	5/8	5
2-1/2	7-1/2	8	3/4	5-7/8
3	8-1/4	8	3/4	6-5/8
3-1/2	9	8	3/4	7-1/4
4	10	8	3/4	7-7/8
5	11	8	3/4	9-1/4
6	12-1/2	12	3/4	10-5/8
8	15	12	7/8	13
10	17-1/2	16	1	15-1/4
12	20-1/2	16	1-1/8	17-3/4
14	23	20	1-1/8	20-1/4
16	25-1/2	20	1-1/4	22-1/2
18	28	24	1-1/4	24-3/4
20	30-1/2	24	1-1/4	27
24	36	24	1-1/2	32

Nominal Pipe Size NPS (inches)	400 psi
Nominal Pipe Size NPS (inches)	Diameter of Flange (inches)	No. of Bolts	Diameter of Bolts (inches)	Bolt Circle (inches)
1/4	3-3/8	4	1/2	2-1/4
1/2	3-3/4	4	1/2	2-5/8
3/4	4-5/8	4	5/8	3-1/4
1	4-7/8	4	5/8	3-1/2
1-1/4	5-1/4	4	5/8	3-7/8
1-1/2	6-1/8	4	3/4	4-1/2
2	6-1/2	8	5/8	5
2-1/2	7-1/2	8	3/4	5-7/8
3	8-1/4	8	3/4	6-5/8
3-1/2	9	8	7/8	7-1/4
4	10	8	7/8	7-7/8
5	11	8	7/8	9-1/4
6	12-1/2	12	7/8	10-5/8
8	15	12	1	13
10	17-1/2	16	1-1/8	15-1/4
12	20-1/2	16	1-1/4	17-3/4
14	23	20	1-1/4	20-1/4
16	25-1/2	20	1-3/8	22-1/2
18	28	24	1-3/8	24-3/4
20	30-1/2	24	1-1/2	27
24	36	24	1-3/4	32

Nominal Pipe Size NPS (inches)	600 psi
Nominal Pipe Size NPS (inches)	Diameter of Flange (inches)	No. of Bolts	Diameter of Bolts (inches)	Bolt Circle (inches)
1/4	3-3/8	4	1/2	2-1/4
1/2	3-3/4	4	1/2	2-5/8
3/4	4-5/8	4	5/8	3-1/4
1	4-7/8	4	5/8	3-1/2
1-1/4	5-1/4	4	5/8	3-7/8
1-1/2	6-1/8	4	3/4	4-1/2
2	6-1/2	8	5/8	5
2-1/2	7-1/2	8	3/4	5-7/8
3	8-1/4	8	3/4	6-5/8
3-1/2	9	8	7/8	7-1/4
4	10-3/4	8	7/8	8-1/2
5	13	8	1	10-1/2
6	14	12	1	11-1/2
8	16-1/2	12	1-1/8	13-3/4
10	20	16	1-1/4	17
12	22	20	1-1/4	19-1/4
14	23-3/4	20	1-3/8	20-3/4
16	27	20	1-1/2	23-3/4
18	29-1/4	20	1-5/8	25-3/4
20	32	24	1-5/8	28-1/2
24	37	24	1-7/8	33

Nominal Pipe Size NPS (inches)	900 psi
Nominal Pipe Size NPS (inches)	Diameter of Flange (inches)	No. of Bolts	Diameter of Bolts (inches)	Bolt Circle (inches)
1/2	4-3/4	4	3/4	3-1/4
3/4	5-1/8	4	3/4	3-1/2
1	5-7/8	4	7/8	4
1-1/4	6-1/4	4	7/8	4-3/8
1-1/2	7	4	1	4-7/8
2	8-1/2	8	7/8	6-1/2
2-1/2	9-5/8	8	1	7-1/2
3	9-1/2	8	7/8	7-1/2
4	11-1/2	8	1-1/8	9-1/4
5	13-3/4	8	1-1/4	11
6	15	12	1-1/8	12-1/2
8	18-1/2	12	1-3/8	15-1/2
10	21-1/2	16	1-3/8	18-1/2
12	24	20	1-3/8	21
14	25-1/4	20	1-1/2	22
16	27-3/4	20	1-5/8	24-1/2
18	31	20	1-7/8	27
20	33-3/4	20	2	29-1/2
24	41	20	2-1/2	35-1/2

Nominal Pipe Size NPS (inches)	1500 psi
Nominal Pipe Size NPS (inches)	Diameter of Flange (inches)	No. of Bolts	Diameter of Bolts (inches)	Bolt Circle (inches)
1/2	4-3/4	4	3/4	3-1/4
3/4	5-1/8	4	3/4	3-1/2
1	5-7/8	4	7/8	4
1-1/4	6-1/4	4	7/8	4-3/8
1-1/2	7	4	1	4-7/8
2	8-1/2	8	7/8	6-1/2
2-1/2	9-5/8	8	1	7-1/2
3	10-1/2	8	1-1/8	8
4	12-1/4	8	1-1/4	9-1/2
5	14-3/4	8	1-1/2	11-1/2
6	15-1/2	12	1-3/8	12-1/2
8	19	12	1-5/8	15-1/2
10	23	12	1-7/8	19
12	26-1/2	16	2	22-1/2
14	29-1/2	16	2-1/4	25
16	32-1/2	16	2-1/2	27-3/4
18	36	16	2-3/4	30-1/2
20	38-3/4	16	3	32-3/4
24	46	16	3-1/2	39

Nominal Pipe Size NPS (inches)	2500 psi
Nominal Pipe Size NPS (inches)	Diameter of Flange (inches)	No. of Bolts	Diameter of Bolts (inches)	Bolt Circle (inches)
1/2	5-1/4	4	3/4	3-1/2
3/4	5-1/2	4	3/4	3-3/4
1	6-1/4	4	7/8	4-1/4
1-1/4	7-1/4	4	1	5-1/8
1-1/2	8	4	1-1/8	5-3/4
2	9-1/4	8	1	6-3/4
2-1/2	10-1/2	8	1-1/8	7-3/4
3	12	8	1-1/4	9
4	14	8	1-1/2	10-3/4
5	16-1/2	8	1-3/4	12-3/4
6	19	8	2	14-1/2
8	21-3/4	12	2	17-1/4
10	26-1/2	12	2-1/2	21-1/4
12	30	12	2-3/4	24-3/8

Explanation of DN and PCD

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BS4504 PN40 Flange Tables and Dimensions

PN40 Solenoid valve flange sizes

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DN = Nominal size, D = Outside Diameter, A = Outside Dia of Neck , B1 = Bore of Type 101 & 112 Flange, C1 = Thickness of Plate Flange, C2 = Thickness of Weld_Neck and Boss Flange , N1 = Dia of Weld Neck , N2 = Dia of Boss, R = corner Radius, H1 = Length of Boss Flange, H2 = Length of Weld Neck Flange, H3 = Length of Neck :

Note: The flanges shown are only a small part of the range covered in BS 4504.

The Facings shown are type B (Raised Face). Other Facings include: Type A..Flat: Type C..Tongue: Type D..Groove Type E..Spigot: :Type F..Recess: Type G..O-ring Recess: Type H.,0-ring Groove:Note : All Dimensions in mm

DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1
10	90	14	16	22	35	6	3	17,2	28	30	18	40	2
15	95	14	16	22	38	6	3	21,3	32	35	22	45	2
20	105	16	18	26	40	6	4	26,9	40	45	27,5	58	2
25	115	16	18	28	40	6	4	33,7	46	52	34,5	68	2
32	140	18	18	30	42	6	5	42,4	56	60	43,5	78	2
40	150	18	18	32	45	7	5	48,3	64	70	49,5	88	3
50	165	20	20	34	48	8	5	60,3	74	84	61,5	102	3
65	185	22	22	38	52	10	6	76,1	92	104	77,5	122	3
80	200	24	24	40	58	12	6	88,9	110	118	90,5	138	3
100	235	26	24	44	65	12	6	114,3	134	145	116	162	3
125	270	28	26	48	68	12	6	139,7	162	170	141,5	188	3
150	300	30	28	52	75	12	8	168,3	190	200	170,5	218	3
200	375	36	34	52	88	16	8	219,1	244	260	221,5	285	3
250	450	42	38	60	105	18	10	273	306	312	276,5	345	3
300	515	48	42	67	115	18	10	323,9	362	380	327,5	410	4
350	580	54	46	72	125	20	10	355,6	408	424	359,5	465	4
400	660	60	50	78	135	20	10	406,4	462	478	411,0	535	4
450	685	66	50	84	135	20	12	457,0	500	522	462,0	560	4
500	755	72	52	90	140	20	12	508,0	562	576	513,5	615	4
600	890	84	60	100	150	20	12	610,0	666	686	616,5	735	5
DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1

PN4 Flange Bolting

K = Bolt Circle Diameter, L = Dia Of Bolt Hole,

No = Number of Holes , Size = Size of Bolts

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	320	30	12	M27
250	385	33	12	M30
300	450	33	16	M30
350	510	36	16	M33
400	585	39	16	M36
450	610	39	20	M36
500	670	42	20	M39
600	795	48	20	M45

PN16 Flange dimensions.

PN16 Flange dimensions as used for PN16 flange solenoid valves.

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Note all dimensions in millimeters.

DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1	DN	K	L	No	Size
10	90	14	14	20	35	6	3	17,2	28	30	18	40	2	mm	mm	mm	-	mm
15	95	14	14	20	35	6	3	21,3	32	35	22	45	2	10	60	14	4	M12
20	105	14	14	24	38	6	4	26,9	39	45	27,5	58	2	15	65	14	4	M12
25	115	16	16	24	38	6	4	33,7	46	52	34,5	68	2	20	75	14	4	M12
32	140	18	16	26	40	6	5	42,4	56	60	43,5	78	2	25	85	14	4	M12
40	150	18	16	26	42	7	5	48,3	64	70	49,5	88	3	32	100	18	4	M16
50	165	20	18	28	45	8	5	60,3	74	84	61,5	102	3	40	110	18	4	M16
65	185	20	18	32	45	10	6	76,1	92	104	77,5	122	3	50	125	18	4	M16
80	200	20	20	34	50	10	6	88,9	110	118	90,5	138	3	65	145	18	8	M16
100	220	22	20	40	52	12	6	114,3	130	140	116	162	3	80	160	18	8	M16
125	250	22	22	44	55	12	6	139,7	158	168	141,5	188	3	100	180	18	8	M16
150	285	24	22	44	55	12	8	168,3	184	195	170,5	212	3	125	210	18	8	M16
200	340	26	24	44	62	16	8	219,1	234	246	221,5	268	3	150	240	22	8	M20
250	405	29	26	46	70	16	10	273	288	298	276,5	320	3	200	295	22	12	M20
300	460	32	28	46	78	16	10	323,9	342	350	327,5	378	4	250	355	26	12	M24
350	520	35	30	57	82	16	10	355,6	390	400	359	438	4	300	410	26	12	M24
400	580	38	32	63	85	16	10	406,4	444	456	411,0	490	4	350	470	26	16	M24
450	640	42	34	68	87	16	12	457,0	490	502	462,0	550	4	400	525	30	16	M27
500	715	46	34	73	90	16	12	508,0	546	559	513,5	610	4	450	585	30	20	M27
600	840	52	36	83	95	18	12	610,0	650	658	616,5	725	5	500	650	33	20	M30
700	910	60	36	83	100	18	12	711,0	750	760	-	795	5	600	770	36	20	M33
800	1025	68	38	90	105	20	12	813,0	848	864	-	900	5	700	840	36	24	M33
900	1125	76	40	94	110	20	12	914,0	948	968	-	1000	5	800	950	39	24	M36
1000	1255	84	42	100	120	22	12	1016,0	1056	1072	-	1115	5	900	1050	39	28	M36
1200	1485	98	48	-	130	30	12	1220,0	1260	-	-	1330	5	1000	1170	42	28	M39
1400	1685	-	52	-	145	30	12	1420,0	1465	-	-	1530	5	1200	1390	48	32	M45
1600	1930	-	58	-	160	35	12	1620,0	1668	-	-	1750	5	1400	1590	48	36	M45
DN	D	C1	C2	H1	H2	H3	R	A	N1	N2	B1	d1	f1	1600	1820	56	40	M52
														DN	K	L	No	Size

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Japanese Standard Flange Dimensions JIS10K, JIS16K compared to European PN16

Size	Specs	Outdia	Insidedia	Thickness	Center	Holesize	Nosofhole	Size	Specs	Outdia	Insidedia	Thickness	Center	Holesize	Nosofhole
1/2"	10K	95	22.5	12	70	15	4	3"	10K	185	90	18	150	19	8
	16K	95	22.5	14	70	15	4		16K	200	90	22	160	23	8
	150P	89	22.3	11.2	60.3	15	4		150P	190	90.7	23.9	152.4	19	4
	300P	95	22.3	14.3	66.7	19	4		300P	210	90.7	28.6	168.3	22	8
	PN16	95	22.5	14	65	15	4		PN16	200	90	20	160	19	8
									7.5K	211	90	18	168	18	4
3/4"	10K	100	28	14	75	15	4	4"	10K	210	116	18	175	19	8
	16K	100	28	16	75	15	4		16K	225	116	24	185	23	8
	150P	98	27.7	12.7	69.8	15	4		150P	229	116.1	23.9	190.5	19	8
	300P	117	27.7	15.1	82.5	19	4		300P	254	116.1	31.8	200	22	8
	PN16	105	28	16	75	15	4		PN16	220	116	20	180	19	8
									7.5K	238	115.4	18	195	18	4
1"	10K	125	34.5	14	90	19	4	5"	10K	250	142	20	210	23	8
	16K	125	34.5	16	90	19	4		16K	270	142	26	225	25	8
	150P	108	34.5	14.3	79.4	15	4		150P	254	143.8	23.9	215.9	22	8
	300P	124	34.5	17.5	90	19	4		300P	279	143.8	35	234.9	22	8
	PN16	115	34.5	16	85	15	4		PN16	250	142	22	210	19	8
									7.5K	263	141.2	19	220	18	6
1 1/4"	10K	135	43.5	16	100	19	4	6"	10K	280	167	22	240	23	8
	16K	135	43.5	18	100	19	4		16K	305	167	28	260	25	12
	150P	117	43.2	15.9	88.9	15	4		150P	279	170.7	25.4	241.3	22	8
	300P	133	43.2	19.1	98.4	19	4		300P	318	170.7	36.6	269.9	22	12
	PN16	140	43.5	16	100	19	4		PN16	285	167	22	240	23	8
									7.5K	290	166.6	20	247	18	6
1 1/2"	10K	140	50	16	105	19	4	8"	10K	330	218	22	290	23	12
	16K	140	50	18	105	19	4		16K	350	218	30	305	25	12
	150P	127	49.5	17.5	98.4	15	4		150P	343	221.5	28.6	298.4	22	8
	300P	156	49.5	20.7	114.3	19	4		300P	381	221.5	41.3	330.2	25	12
	PN16	150	50	16	110	19	4		PN16	340	218	24	295	23	12
									7.5K	342	218	21	299	18	8
2"	10K	155	61.5	16	120	19	4	10"	10K	400	270	24	355	25	12
	16K	155	61.5	18	120	19	8		16K	430	270	34	380	27	12
	150P	152	62	19.1	120.6	19	4		150P	276.3	406	30.2	361.9	25	12
	300P	165	62	22.3	127	22	8		300P	444	276.3	47.7	387.3	29	16
	PN16	165	61.5	18	125	19	4		PN16	405	270	26	355	27	12
	7.5K	184	61.1	18	140	18	4		7.5K	410	269.5	22	360	21	8
2 1/2"	10K	175	77.5	18	140	19	4	12"	10K	445	320	24	400	25	16
	16K	175	77.5	20	140	19	8		16K	480	320	36	430	27	16
	150P	178	74.7	22.3	139.7	19	4		150P	483	327.1	31.8	431.8	25	12
	300P	190	74.7	25.4	149.2	22	8		300P	521	327.1	50.8	450.8	32	16
	PN16	185	77.5	18	145	19	4		PN16	460	320	28	412	27	12
	7.5K	193	77.1	18	155	18	4		7.5K	464	321	23	414	21	10