Blind Flange

We are PED Approved Blind Flange Manufacturer in India. Check Stainless/ Carbon/ Alloy Steel Ported Blind Flange best price in Mumbai. View Sizes & Dimensions of ASME B16.5 Forged/ Plate BLRF Flange

Types of Flanges

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Blind Flange Specification Class 150 Blind Flange Dimensions Class 900 Blind Flange Dimensions Weight Chart of Carbon Steel Blind Flange Dimensions of Pn16 Stainless Steel Blind Flange Pressure Ratings of Ansi Blind Flange Tolerances Of Alloy Steel Blind Flange Available Material of Reducing Blind Flange

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Blind Flange in Detail

Technical Data

Full Specifications

›Technical Data

Blind Flange Specification

col_1	col_2
Size	1/2″ (15 NB) to 48″ (1200NB)
Standards	ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings.
Pressure Ratings	PN6, PN10, PN16, PN25, PN40, PN64 etc.
Pressure class	150#, 300#, 600#, 1500#
Dimensions and Pressure Ratings for Blind Flanges	MSS- SP-44, BS3293, ANSI, Table D, E, F, & H, BS4504, PN6, 10, 16, 25, 64 BS10, DIN Standards
Flange Face Type Manufacturer	Raised Face (RF), Flate Face (FF), Ring Type Joint (RTJ)
Coating/Surface Treatment	Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized.
Test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Manufacturer of	ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. / / Blind Flange: -BS, EN, API 6A, ANSI, ASME, DIN, EN1092-1, UNI, JIS/ KS , BS4504, GB, AWWA C207, GOST, PSI B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276

Available Material of Reducing Blind Flange

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Stainless Steel	ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Titanium	ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7 / / ASTM R50250/GR.1 \| R50400/GR.2 \| R50550/GR.3 \| R50700/GR.4 \| GR.6 \|R52400/GR.7 \| R53400/GR.12 \| R56320/GR.9 \|R56400/GR.5
Brass	3602 / 2604 / H59 / H62 / etc.
Monel	ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy Steel	ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Carbon Steel	ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Inconel	ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750
Hastelloy	ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Copper Nickel	ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Copper	T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Aluminium	5052 /6061/ 6063 / 2017 / 7075 / etc.
Incoloy	ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
Super Duplex	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Alloy 20	ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Duplex	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
254 Smo	ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic	Nimonic 75, Nimonic 80A, Nimonic 90
Nickel	ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Other material	Tin bronze, Alumunum bronze, Lead bronze

Check Material we Manufacturer and Exported in Below Countries

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EN545 Ductile Cast Iron Blind Flange PN16	Finland, USA, Malaysia, Bangladesh
Stainless steel 304 ANSI DIN blind flange	Malaysia, Turkey, United Arab Emirates (UAE), Norway
ASME 16.5 Carbon Steel Blind Forged Flange	Thailand, France, Qatar, Europe
blind flange 300# 4'' Stainless Steel 304	UAE, Malaysia, Oman, Hong Kong
DUPLEX 2205 ASME B16.5 1/2" - 24" 150# RF FF RTJ BL BL BLIND FLANGE	China, Colombia, Sweden, Malaysia
F22 Alloy steel flange blind flange	Belgium, Indonesia, Dammam -KSA, Philippines
ANSI B16.5 grade2 150# press class titanium blind flange	Nigeria, Australia, Philippines, UK
Jis 10k blind flange FF stainless steel 304	Singapore, Italy, Chile, Iran
150# 8 inches astm b16.5 stainless steel rtj f316 BLIND flange	Singapore, South Africa, Bahrain, Singapore
Titanium blind exhaust flange 4" ANSI 150lbs 300 ibs class gr2	Brazil, Saudi Arabia (KSA), South Africa, Kuwait
Stainless Steel F304L DN100 PN25 RF Blind Flange	Malaysia, South Korea, Singapore, NY 12203 (USA)
Astm a350 Lf2 Cl1 Cl2 Blind Flange	Malaysia, Germany, Czechia, Thailand
stainless steel blank blind flange	Singapore, Malaysia, Philippines, Canada
ANSI B16.5 Forged Steel Blind Flange, ASTM A105, DN300, PN50	Philippines, Taiwan, Malaysia, Los Alamos -Mexico
PN16 Blind Raised Face BLRF 8″ Carbon Steel A105 Black-painting	Ellington -United States, Canada, UK, Poland
ASTM Nickel Alloy Steel 1 1/4″ 300 # Blind Flange rf	Malaysia, Japan, Europe, Romania
ANSI B16.5 Blind Flange, PN100, DN250, ASTM A105N, RF Ends	Dubai, Malaysia, Netherlands, Russia
AWWA C207 Class d Flat Face Blind Flange	UK, Spain, Egypt, Mexico
Class 150 Blind Flange EN 1092-1 Type 02	UAE, Europe, United Kingdom -UK, Malaysia

›Dimensions & Weight

Class 150 Blind Flange Dimensions

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ø	D	b	g	k	Holes	l	Kg.
1/2"	88,9	11,1	34,9	60,3	4	15,9	0,400
3/4"	98,4	12,7	42,9	69,8	4	15,9	0,700
1"	107,9	14,3	50,8	79,4	4	15,9	0,900
1 1/4"	117,5	15,9	63,5	88,9	4	15,9	1,300
1 1/2"	127,0	17,5	73,0	98,4	4	15,9	1,600
2"	152,4	19,0	92,1	120,6	4	19,0	2,600
2 1/2"	177,8	22,2	104,8	139,4	4	19,0	4,100
3"	190,5	23,8	127,0	152,4	4	19,0	5,000
3 1/2"	215,9	23,8	139,7	177,8	8	19,0	6,400
4"	228,6	23,8	157,2	190,5	8	19,0	7,100
5"	254,0	23,8	185,7	215,9	8	22,2	9,000
6"	279,4	25,4	215,9	241,3	8	22,2	11,800
8"	342,9	28,6	269,9	298,4	8	22,2	21,000
10"	406,4	30,2	323,4	361,9	12	25,4	30,000
12"	482,6	31,7	381,0	431,8	12	25,4	45,000
14"	533,4	34,9	412,7	476,2	12	28,6	59,000
16"	596,9	36,5	469,9	539,9	16	28,6	79,000
18"	635,0	39,7	533,4	577,8	16	31,7	97,000
20"	698,5	42,9	584,2	635,0	20	31,7	124,000
22"	749,3	46,0	641,2	692,1	20	34,9	151,000
24"	812,8	47,6	692,1	749,3	20	34,9	188,000

Class 900 Blind Flange Dimensions

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NOM PIPE SIZE	OD	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	Raised Face Thickness (T)	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
3"	9.50"	7.50"	5.00"	.250"	1.75"	1.50"	1.00"	8
4"	11.50"	9.25"	6.19"	.250"	2.00"	1.75"	1.25"	8
5"	13.75"	11.00"	7.31"	.250"	3.25"	3.00"	1.38"	8
6"	15.00"	12.50"	8.50"	.250"	2.44"	2.19"	1.25"	12
8"	18.50"	15.50"	10.63"	.250"	2.75"	2.50"	1.50"	12
10"	21.50"	18.50"	12.75"	.250"	3.00"	2.75"	1.50"	16
12"	24.00"	21.00"	15.00"	.250"	3.38"	3.13"	1.50"	20
14"	25.25"	22.00"	16.25"	.250"	3.63"	3.38"	1.63"	20
16"	27.75"	24.25"	18.50"	.250"	3.75"	3.50"	1.75"	20
18"	31.00"	27.00"	21.00"	.250"	4.25"	4.00"	2.00"	20

Weight Chart of Carbon Steel Blind Flange

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col_1	col_2	col_3	col_4	col_5	col_6	col_7	col_8	col_9	col_10	col_11	col_12	col_13	col_14	col_15	col_16	col_17	col_18	col_19
Pipe Size	150 #	150 #	150 #	300 #	300 #	300 #	600 #	600 #	600 #	900 #	900 #	900 #	1500 #	1500 #	1500 #	2500 #	2500 #	2500 #
Pipe Size	WN	SO	BLD	WN	SO	BLD	WN	SO	BLD	WN	SO	BLD	WN	SO	BLD	WN	SO	BLD
1/2"	2	1	1	2	1	1	2	2	2	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	5	4	4	7	7	7
3/4"	2	2	2	3	3	3	4	3	3	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	6	5	6	8	8	8
1"	3	2	2	4	3	3	4	4	4	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	9	8	8	12	11	11
1 1/2"	4	3	3	7	6	6	8	7	8	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	13	12	13	25	22	23
2"	6	5	5	9	7	8	12	9	10	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	25	25	25	42	37	39
2 1/2"	8	7	7	12	10	12	18	13	15	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	SEE 1500 # WEIGHTS	36	36	35	52	55	56
3"	10	8	9	15	13	16	23	16	20	31	26	29	48	48	48	94	83	86
4"	15	13	17	25	22	27	42	37	41	53	53	54	73	73	73	145	125	130
5"	19	15	20	32	28	35	68	63	68	86	83	87	130	130	140	245	210	225
6"	24	19	26	42	39	50	81	80	86	110	110	115	165	165	160	380	325	345
8"	39	30	45	67	58	81	120	115	140	175	170	200	275	260	300	580	485	530
10"	52	43	70	91	81	124	190	170	230	260	245	290	455	435	510	1075	930	1025
12"	80	64	110	140	115	185	225	200	295	325	325	415	690	580	690	1525	1100	1300
14"	110	90	140	180	165	250	280	230	355	400	400	520	940	NA	975	NA	NA	NA
16"	140	98	180	250	190	295	390	330	495	495	425	600	1250	NA	1300	NA	NA	NA
18"	150	130	220	320	250	395	475	400	630	680	600	850	1625	NA	1750	NA	NA	NA
20"	180	165	285	400	315	505	590	510	810	830	730	1075	2050	NA	2225	NA	NA	NA
22"	225	185	355	465	370	640	720	590	1000	NA	NA	NA	NA	NA	NA	NA	NA	NA
24"	260	220	430	580	475	790	830	730	1250	1500	1400	2025	3325	NA	3625	NA	NA	NA

Weight Chart of Carbon Steel Blind Flange

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Conversion Data
• 1 inch = 25.44 mm	• 1 mm = 0.03937 inches	• 1 lb/ft^2 = 47.88 Pa	• 1 psi = 6.8948 Pa	• x°F = (5/9)(x-32)°C
• 1 pound = 0.45359 Kg	• 1 Kg = 2.20462 pounds	• 1 Pa = 0.020885 lb/ft^2	• 1 Pa = 0.00014504 psi	• x°C = (9/5)x + 32°F

Dimensions of Pn16 Stainless Steel Blind Flange

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col_1	col_2	col_3	col_4	col_5	col_6	col_7	col_8
Rated / Diameter	Flange	Flange	Flange	Screws	Screws	Screws	Weight / (7,85 Kg/dm3)
Rated / Diameter	D	b	k	Number	Thread	d2	Shape B
Rated / Diameter	D	b	k	Number	Thread	d2	Kg
15	95	14	65	4	M 12	14	0,72
20	105	16	75	4	M 12	14	1,01
25	115	16	85	4	M 12	14	1,23
32	140	16	100	4	M 16	18	1,8
40	150	16	110	4	M 16	18	2,09
50	165	18	125	4	M 16	18	2,88
65	185	18	145	4	M 16	18	3,66
80	200	20	160	8	M 16	18	4,77
100	220	20	180	8	M 16	18	5,65
125	250	22	210	8	M 16	18	8,42
150	285	22	240	8	M 20	22	10,4
200	340	24	295	12	M 20	22	16,1
250	405	26	355	12	M 24	26	24,9
300	460	28	410	12	M 24	26	35,1
350	520	30	470	16	M 24	26	47,8
400	580	32	525	16	M 27	30	63,5
500	715	36	650	20	M 30	33	102

JIS 5K Blind Flange Dimensions

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col_1	col_2	col_3	col_4	col_5	col_6	col_7	col_8	col_9	col_10	col_11	col_12	col_13	col_14	col_15	col_16	col_17	col_18	col_19	col_20	col_21	col_22	col_23
Pipe	Pipe	Pipe	Bo	Bo	D	D	t	t	T	T	G	G	f	r	H	H	X	X	C	C	Holes	Bolt Dia.
inch	mm	Pipe	Bo	Bo	D	D	t	t	T	T	G	G	f	r	H	H	X	X	C	C	Holes	Bolt Dia.
3/8	10	17.3	17.8	+0.5 / 0	75	+1.0 / 0	9	+1.0 / 0	–	±1.0	42	±0.8	1	–	–	+2.0 / 0	–	+2.0 / 0	55	±0.5	4	12
1/2	15	21.7	22.2	+0.5 / 0	80	+1.0 / 0	9	+1.0 / 0	–	±1.0	48	±0.8	1	–	–	+2.0 / 0	–	+2.0 / 0	60	±0.5	4	12
3/4	20	27.2	27.7	+0.5 / 0	85	+1.0 / 0	10	+1.0 / 0	–	±1.0	52	±0.8	1	–	–	+2.0 / 0	–	+2.0 / 0	65	±0.5	4	12
1	25	34.0	34.5	+0.5 / 0	95	+1.0 / 0	10	+1.0 / 0	–	±1.0	62	±0.8	1	–	–	+2.0 / 0	–	+2.0 / 0	75	±0.5	4	12
11/4	32	42.7	43.2	+0.5 / 0	115	+1.0 / 0	12	+1.0 / 0	–	±1.0	72	±0.8	2	–	–	+2.0 / 0	–	+2.0 / 0	90	±0.5	4	15
11/2	40	48.6	49.1	+0.5 / 0	120	+1.0 / 0	12	+1.0 / 0	–	±1.0	78	±0.8	2	–	–	+2.0 / 0	–	+2.0 / 0	95	±0.5	4	15
2	50	60.5	61.1	+0.5 / 0	130	+1.0 / 0	14	+1.0 / 0	–	±1.0	88	±0.8	2	–	–	+2.0 / 0	–	+2.0 / 0	105	±0.5	4	15
21/2	65	76.3	77.1	+0.5 / 0	155	+1.0 / 0	14	+1.0 / 0	–	±1.0	112	±0.8	2	–	–	+2.0 / 0	–	+2.0 / 0	130	±0.5	4	15
3	80	89.1	90.0	+0.5 / 0	180	+1.0 / 0	14	+1.0 / 0	–	±1.0	125	±0.8	2	–	–	+2.0 / 0	–	+2.0 / 0	145	±0.5	4	19
31/2	90	101.6	102.6	+1.0 / 0	190	+1.0 / 0	14	+1.0 / 0	–	±1.0	135	±0.8	2	–	–	+2.0 / 0	–	+2.0 / 0	155	±0.5	4	19
4	100	114.3	115.4	+1.0 / 0	200	+1.0 / 0	16	+1.0 / 0	–	±1.0	145	±0.8	2	–	–	+2.0 / 0	–	+2.0 / 0	165	±0.5	8	19
5	125	139.8	141.2		235		16		–		180		2	–	–		–		200		8	19
6	150	165.2	166.6		265		18		–		210		2	–	–		–		230		8	19
7	175	190.7	192.1		300		18		–		235	±0.9	2	–	–		–		260	±0.6	8	23
8	200	216.3	218.0		320	+1.5 / 0	20		–		255	±0.9	2	–	–		–		280	±0.6	8	23
9	225	241.8	243.7		345	+1.5 / 0	20		–		280	±0.9	2	–	–		–		305	±0.6	12	23
10	250	267.4	269.5		385	+1.5 / 0	22	+1.5 / 0	32		320	±0.9	2	5	286		290		345	±0.6	12	23
12	300	318.5	321.0		430	+1.5 / 0	22	+1.5 / 0	34		365	±0.9	3	5	338		342		390	±0.6	12	23
14	350	355.6	358.1		480	+1.5 / 0	24	+1.5 / 0	36		405	±0.9	3	5	378		382		435	±0.6	12	25
16	400	406.4	409.0	+1.5 / 0	540	+1.5 / 0	24	+1.5 / 0	36		465	±0.9	3	5	432		436		495	±0.6	16	25
18	450	457.2	460.0	+1.5 / 0	605	+2.0 / 0	24	+1.5 / 0	40		525	±0.9	3	5	495		500		555	±0.8	16	25
20	500	508.0	511.0	+1.5 / 0	655	+2.0 / 0	24	+1.5 / 0	40		575	±0.9	3	5	546		552		605	±0.8	20	25
22	550	558.8	562.0	+1.5 / 0	720	+2.0 / 0	26	+1.5 / 0	42		630	±0.9	3	5	597		603		665	±0.8	20	27
24	600	609.6	613.0	+2.0 / 0	770	+2.0 / 0	26	+1.5 / 0	44		680	±1.0	3	5	648		654	+2.5 / 0	715	±0.8	20	27
26	650	660.4	664.0	+2.0 / 0	825	+2.0 / 0	26	+1.5 / 0	48		735	±1.0	3	5	702	+2.5 / 0	708	+2.5 / 0	770	±0.8	24	27
28	700	711.2	715.0	+2.0 / 0	875	+2.0 / 0	26	+1.5 / 0	48		785	±1.0	3	5	751	+2.5 / 0	758	+2.5 / 0	820	±0.8	24	27
30	750	762.0	766.0		945		28		52	±1.5	840		3	5	802		810		880		24	33
32	800	812.8	817.0	+2.5 / 0	995		28		52	±1.5	890		3	5	854	+3.0 / 0	862	+3.0 / 0	930		24	33
34	850	863.6	868.0	+2.5 / 0	1045	+2.5 / 0	28		54	±1.5	940		3	5	904	+3.0 / 0	912	+3.0 / 0	980	±1.0	24	33
36	900	914.4	919.0	+2.5 / 0	1095	+2.5 / 0	30		56	±1.5	990		3	5	956	+3.0 / 0	964	+3.0 / 0	1030	±1.0	24	33
40	1000	1016.0	1021.0	+3.0 / 0	1195	+2.5 / 0	32		60	±1.5	1090	±1.2	3	5	1058	+3.5 / 0	1066	+3.5 / 0	1130	±1.0	28	33
44	1100	1117.6	1123.0	+3.0 / 0	1305	+2.5 / 0	32		–	±1.5	1200	±1.2	3	–	–	+3.5 / 0	–	+3.5 / 0	1240	±1.0	28	33
48	1200	1219.2	1224.0	+3.0 / 0	1420	+2.5 / 0	34		–	±1.5	1305	±1.2	3	–	–	+3.5 / 0	–	+3.5 / 0	1350	±1.0	32	33
54	1350	1371.6	1377.0	+3.0 / 0	1575	+3.0 / -0	34		–	±1.5	1460	±1.2	3	–	–	+3.5 / 0	–	+3.5 / 0	1505	±1.5	32	33
60	1500	1524.0	1529.0	+3.0 / 0	1730	+3.0 / -0	36		–	±1.5	1615	±1.2	3	–	–	+3.5 / 0	–	+3.5 / 0	1660	±1.5	36	33

JIS 10K Blind Flange Dimensions

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col_1	col_2	col_3	col_4	col_5	col_6	col_7	col_8	col_9	col_10	col_11	col_12	col_13	col_14	col_15	col_16	col_17	col_18	col_19	col_20	col_21	col_22	col_23
Pipe	Pipe	Pipe	Bo	Bo	D	D	t	t	T	T	G	G	f	r	H	H	X	X	C	C	Holes	Bolt Dia.
inch	mm	Pipe	Bo	Bo	D	D	t	t	T	T	G	G	f	r	H	H	X	X	C	C	Holes	Bolt Dia.
3/8	10	17.3	17.8	+0.5 / -0	90	+1.0 / -0	12	+1.0 / -0	–	±1.0	48	±0.8	1	–	–	+1.5 / -0	–	+1.5 / -0	65	±0.5	4	15
1/2	15	21.7	22.2	+0.5 / -0	95	+1.0 / -0	12	+1.0 / -0	–	±1.0	52	±0.8	1	–	–	+1.5 / -0	–	+1.5 / -0	70	±0.5	4	15
3/4	20	27.2	27.7	+0.5 / -0	100	+1.0 / -0	14	+1.0 / -0	–	±1.0	58	±0.8	1	–	–	+1.5 / -0	–	+1.5 / -0	75	±0.5	4	15
1	25	34.0	34.5	+0.5 / -0	125	+1.0 / -0	14	+1.0 / -0	–	±1.0	70	±0.8	1	–	–	+1.5 / -0	–	+1.5 / -0	90	±0.5	4	19
1-1/4	32	42.7	43.2	+0.5 / -0	135	+1.0 / -0	16	+1.0 / -0	–	±1.0	80	±0.8	2	–	–	+1.5 / -0	–	+1.5 / -0	100	±0.5	4	19
1-1/2	40	48.6	49.1	+0.5 / -0	140	+1.0 / -0	16	+1.0 / -0	–	±1.0	85	±0.8	2	–	–	+1.5 / -0	–	+1.5 / -0	105	±0.5	4	19
2	50	60.5	61.1	+0.5 / -0	155	+1.0 / -0	16	+1.0 / -0	–	±1.0	100	±0.8	2	–	–	+1.5 / -0	–	+1.5 / -0	120	±0.5	4	19
2-1/2	65	76.3	77.1	+0.5 / -0	175	+1.0 / -0	18	+1.0 / -0	–	±1.0	120	±0.8	2	–	–	+1.5 / -0	–	+1.5 / -0	140	±0.5	4	19
3	80	89.1	90.0	+0.5 / -0	185	+1.0 / -0	18	+1.0 / -0	–	±1.0	130	±0.8	2	–	–	+1.5 / -0	–	+1.5 / -0	150	±0.5	8	19
3-1/2	90	101.6	102.6	+1.0 / -0	195	+1.0 / -0	18	+1.0 / -0	–	±1.0	140	±0.8	2	–	–	+1.5 / -0	–	+1.5 / -0	160	±0.5	8	19
4	100	114.3	115.4	+1.0 / -0	210	+1.0 / -0	18	+1.0 / -0	–	±1.0	155	±0.8	2	–	–	+1.5 / -0	–	+1.5 / -0	175	±0.5	8	19
5	125	139.8	141.2		250		20		–		185		2	–	–		–		210		8	23
6	150	165.2	166.6		280		22	+1.5 / -0	–		215		2	–	–		–		240		8	23
7	175	190.7	192.1		305	+1.5 / -0	22	+1.5 / -0	32		240	±0.9	2	6	208		212		265	±0.6	12	23
8	200	216.3	218.0		330	+1.5 / -0	22	+1.5 / -0	32		265	±0.9	2	6	234		238		290	±0.6	12	23
9	225	241.8	243.7		350	+1.5 / -0	22	+1.5 / -0	34		285	±0.9	2	6	260		264		310	±0.6	12	23
10	250	267.4	269.5		400	+1.5 / -0	24	+1.5 / -0	36		325	±0.9	2	6	288		292		355	±0.6	12	25
12	300	318.5	321.0		445	+1.5 / -0	24	+1.5 / -0	38		370	±0.9	3	6	340		346		400	±0.6	16	25
14	350	355.6	358.1		490	+1.5 / -0	26	+1.5 / -0	42		415	±0.9	3	6	380		386		445	±0.6	16	25
16	400	406.4	409.0	+1.5 / -0	560		28		44		475		3	6	436		442		510		16	27
18	450	457.2	460.0	+1.5 / -0	620	+2.0 / -0	30		48		530		3	6	496	+2.0 / -0	502	+2.0 / -0	565	±0.8	20	27
20	500	508.0	511.0	+1.5 / -0	675	+2.0 / -0	30		48		585		3	6	548	+2.0 / -0	554	+2.0 / -0	620	±0.8	20	27
22	550	558.8	562.0	+1.5 / -0	745	+2.0 / -0	32		52	±1.5	640		3	6	604	+2.0 / -0	610	+2.0 / -0	680	±0.8	20	33
24	600	609.6	613.0	+2.0 / -0	795	+2.0 / -0	32		52	±1.5	690	±1.0	3	6	656	+2.5 / -0	662	+2.5 / -0	730	±0.8	24	33
26	650	660.4	664.0	+2.0 / -0	845	+2.0 / -0	34		56	±1.5	740	±1.0	3	6	706	+2.5 / -0	712	+2.5 / -0	780	±0.8	24	33
28	700	711.2	715.0	+2.0 / -0	905	+2.0 / -0	34		58	±1.5	800	±1.0	3	6	762	+2.5 / -0	770	+2.5 / -0	840	±0.8	24	33
30	750	762.0	766.0	+2.0 / -0	970	+2.0 / -0	36		62	±1.5	855	±1.0	3	6	816	+2.5 / -0	824	+2.5 / -0	900	±0.8	24	33
32	800	812.8	817.0	+2.5 / -0	1020	+2.5 / -0	36		64	±1.5	905	±1.0	3	6	868	+3.0 / -0	876	+3.0 / -0	950	±0.8	28	33
34	850	863.6	868.0	+2.5 / -0	1070	+2.5 / -0	36		66	±1.5	955	±1.0	3	6	920	+3.0 / -0	928	+3.0 / -0	1000	±1.0	28	33
36	900	914.4	919.0	+2.5 / -0	1120	+2.5 / -0	38		70	±1.5	1005	±1.2	3	6	971	+3.0 / -0	979	+3.0 / -0	1050	±1.0	28	33
40	1000	1016.0	1021.0	+3.0 / -0	1235		40		74		1110		3	6	1073	+3.5 / -0	1081	+3.5 / -0	1160		28	39
44	1100	1117.6	1123.0	+3.0 / -0	1345		42		78		1220		3	8	1175	+3.5 / -0	1185	+3.5 / -0	1270		28	39
48	1200	1219.2	1224.0	+3.0 / -0	1465		44		82		1325		3	8	1278	+3.5 / -0	1290	+3.5 / -0	1380	±1.5	32	39
54	1350	1371.6	1377.0	+3.0 / -0	1630	+3.0 / -0	48		88		1480		3	8	1432	+3.5 / -0	1450	+3.5 / -0	1540	±1.5	36	45
60	1500	1524.0	1529.0	+3.0 / -0	1795	+3.0 / -0	50		90		1635		3	8	1585	+3.5 / -0	1600	+3.5 / -0	1700	±1.5	40	45

JIS 16K Blind Flange Dimensions

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col_1	col_2	col_3	col_4	col_5	col_6	col_7	col_8	col_9	col_10	col_11	col_12	col_13	col_14	col_15	col_16	col_17	col_18	col_19	col_20	col_21	col_22	col_23
Pipe	Pipe	Pipe	Bo	Bo	D	D	t	t	T	T	G	G	f	r	H	H	X	X	C	C	Holes	Bolt Dia.
inch	mm	Pipe	Bo	Bo	D	D	t	t	T	T	G	G	f	r	H	H	X	X	C	C	Holes	Bolt Dia.
3/8	10	17.3	17.8	+0.5 / -0	90	+1.0 / -0	12	+1.0	16	±1.0	48	±0.8	1	4	26	+1.0 / -0	28	+1.0 / -0	65	±0.5	4	15
1/2	15	21.7	22.2	+0.5 / -0	95	+1.0 / -0	12	+1.0	16	±1.0	52	±0.8	1	4	30	+1.0 / -0	32	+1.0 / -0	70	±0.5	4	15
3/4	20	27.2	27.7	+0.5 / -0	100	+1.0 / -0	14	+1.0	20	±1.0	58	±0.8	1	4	38	+1.0 / -0	42	+1.0 / -0	75	±0.5	4	15
1	25	34.0	34.5	+0.5 / -0	125	+1.0 / -0	14	+1.0	20	±1.0	70	±0.8	1	4	46	+1.0 / -0	50	+1.0 / -0	90	±0.5	4	19
1-1/4	32	42.7	43.2	+0.5 / -0	135	+1.0 / -0	16	+1.0	22	±1.0	80	±0.8	2	5	56	+1.0 / -0	60	+1.0 / -0	100	±0.5	4	19
1-1/2	40	48.6	49.1	+0.5 / -0	140	+1.0 / -0	16	+1.0	24	±1.0	85	±0.8	2	5	62	+1.0 / -0	66	+1.0 / -0	105	±0.5	4	19
2	50	60.5	61.1	+0.5 / -0	155	+1.0 / -0	16	+1.0	24	±1.0	100	±0.8	2	5	76	+1.0 / -0	80	+1.0 / -0	120	±0.5	8	19
2-1/2	65	76.3	77.1	+0.5 / -0	175	+1.0 / -0	18	+1.0	26	±1.0	120	±0.8	2	5	94	+1.0 / -0	98	+1.0 / -0	140	±0.5	8	19
3	80	89.1	90.0		200		20		28		135		2	6	108		112		160		8	23
3-1/2	90	101.6	102.6	+1.0 / -0	210		20		30		145		2	6	120		124		170		8	23
4	100	114.3	115.4	+1.0 / -0	225		22	+1.5 / -0	34		160		2	6	134		138		185		8	23
5	125	139.8	141.2	+1.0 / -0	270		22	+1.5 / -0	34		195		2	6	164		170		225		8	25
6	150	165.2	166.6	+1.0 / -0	305	+1.5 / -0	24	+1.5 / -0	38		230	±0.9	2	6	196		202		260	±0.6	12	25
7	175	190.7	192.1	+1.0 / -0	325	+1.5 / -0	26	+1.5 / -0	40		250	±0.9	2	6	216		222	+1.5 / -0	280	±0.6	12	25
8	200	216.3	218.0	+1.0 / -0	350	+1.5 / -0	26	+1.5 / -0	40		275	±0.9	2	6	244	+1.5 / -0	252	+1.5 / -0	305	±0.6	12	25
9	225	241.8	243.7	+1.0 / -0	385	+1.5 / -0	26	+1.5 / -0	40		325	±0.9	2	6	266	+1.5 / -0	272	+1.5 / -0	335	±0.6	12	27
10	250	267.4	269.5	+1.0 / -0	430	+1.5 / -0	28	+1.5 / -0	44		345	±0.9	2	6	304	+1.5 / -0	312	+1.5 / -0	380	±0.6	12	27
12	300	318.5	321.0	+1.0 / -0	480	+1.5 / -0	30	+1.5 / -0	48		395	±0.9	3	8	354	+1.5 / -0	364	+1.5 / -0	430	±0.6	16	27
14	350	355.6	358.1		540		34		52	±1.5	440		3	8	398		408		480		16	33
16	400	406.4	409.0	+1.5 / -0	605	+2.0 / -0	38		60	±1.5	495		3	10	446		456	+2.0 / -0	540		16	33
18	450	457.2	460.0	+1.5 / -0	675	+2.0 / -0	40		64	±1.5	560		3	10	504	+2.0 / -0	514	+2.0 / -0	605	±0.8	20	33
20	500	508.0	511.0	+1.5 / -0	730	+2.0 / -0	42		68	±1.5	615		3	10	558	+2.0 / -0	568	+2.0 / -0	660	±0.8	20	33
22	550	558.8	562.0	+1.5 / -0	795	+2.0 / -0	44		70	±1.5	670	±1.0	3	10	612	+2.0 / -0	622	+2.0 / -0	720	±0.8	20	39
24	600	609.6	613.0	+2.0 / -0	845	+2.0 / -0	46		74	±1.5	720	±1.0	3	10	666	+2.5 / -0	676	+2.5 / -0	770	±0.8	24	39
26	650	660.4	664.0	+2.0 / -0	895	+2.0 / -0	48		77	±1.5	770	±1.0	5	10	704	+2.5 / -0	726	+2.5 / -0	820	±0.8	24	39
28	700	711.2	715.0	+2.0 / -0	960	+2.0 / -0	50		80	±1.5	820	±1.0	5	10	754	+2.5 / -0	776	+2.5 / -0	875	±0.8	24	42
30	750	762.0	766.0	+2.0 / -0	1020	+2.5 / -0	52	+2.0 / -0	83	±1.5	880	±1.0	5	10	806	+2.5 / -0	832	+2.5 / -0	935	±0.8	24	42
32	800	812.8	817.0	+2.5 / -0	1085	+2.5 / -0	54	+2.0 / -0	86	±1.5	930	±1.0	5	10	865	+3.0 / -0	885	+3.0 / -0	990	±1.0	24	48
34	850	863.6	868.0	+2.5 / -0	1135	+2.5 / -0	56	+2.0 / -0	89	±1.5	980	±1.0	5	10	916	+3.0 / -0	936	+3.0 / -0	1040	±1.0	24	48
36	900	914.4	919.0	+2.5 / -0	1185	+2.5 / -0	58	+2.0 / -0	93	±1.5	1030	±1.2	5	10	968	+3.0 / -0	986	+3.0 / -0	1090	±1.0	28	48
40	1000	1016.0	1021.0	+3.0 / -0	1320		62		99		1140		5	12	1070	+3.5 / -0	1098	+3.5 / -0	1210		28	56
44	1100	1117.6	1123.0	+3.0 / -0	1420		66		105	±2.0	1240		5	12	1180	+3.5 / -0	1200	+3.5 / -0	1310		32	56
48	1200	1219.2	1225.0	+3.0 / -0	1530	+3.0 / -0	70		112	±2.0	1350		5	12	1282	+3.5 / -0	1302	+3.5 / -0	1420	±1.5	32	56
52	1300	1320.8	1326.0	+3.0 / -0	1645	+3.0 / -0	74		–	±2.0	1450		5	–	–	+3.5 / -0	–	+3.5 / -0	1530	±1.5	32	62
54	1350	1371.6	1377.0	+3.0 / -0	1700	+3.0 / -0	76		–	±2.0	1510		5	–	–	+3.5 / -0	–	+3.5 / -0	1590	±1.5	32	62
56	1400	1422.4	1428.0	+3.0 / -0	1755	+3.0 / -0	78		–	±2.0	1560		5	–	–	+3.5 / -0	–	+3.5 / -0	1640	±1.5	36	62
60	1500	1524.0	1529.0	+3.0 / -0	1865	+3.0 / -0	80		–	±2.0	1670		5	–	–	+3.5 / -0	–	+3.5 / -0	1750	±1.5	36	62

›Pressure Ratings

Pressure Ratings of Ansi Blind Flange

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col_1	col_2	col_3	col_4	col_5	col_6	col_7	col_8
Temp / -29 °C	150	300	400	600	900	1500	2500
38	19.6	51.1	68.1	102.1	153.2	255.3	425.5
50	19.2	50.1	66.8	100.2	150.4	250.6	417.7
100	17.7	46.6	62.1	93.2	139.8	233	388.3
150	15.8	45.1	60.1	90.2	135.2	225.4	375.6
200	13.8	43.8	58.4	87.6	131.4	219	365
250	12.1	41.9	55.9	83.9	125.8	209.7	349.5
300	10.2	39.8	53.1	79.6	119.5	199.1	331.8
325	9.3	38.7	51.6	77.4	116.1	193.6	322.6
350	8.4	37.6	50.1	75.1	112.7	187.8	313
375	7.4	36.4	48.5	72.7	109.1	181.8	303.1
400	6.5	34.7	46.3	69.4	104.2	173.6	289.3
425	5.5	28.8	38.4	57.5	86.3	143.8	239.7
450	4.6	23	30.7	46	69	115	191.7
475	3.7	17.4	23.2	34.9	52.3	87.2	145.3
500	2.8	11.8	15.7	23.5	35.3	58.8	97.9
538	1.4	5.9	7.9	11.8	17.7	29.5	49.2

›Tolerances

Tolerances Of Alloy Steel Blind Flange

col_1	col_2
Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter not applicable
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Outside Diameter of Hub ≤ 12 = + 2.4 mm / – 1.6 mm \| ≥ 14 = ± 3.2 mm
Diameter of Counterbore not applicable	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mmEccentricity of Bolt Circle with Respect to Facing≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max.
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 18 = + 3.2 mm / – 0.8 mm \| ≥ 20 = + 4.8 mm / – 1.6 mm

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