Class 150 Flange

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Class 150 Flange

Refer ASME 150 Weld Flange and ANSI 150 Slip On Flange Dimension In MM, Benefit Of Class 150 Forged Flanges

What Is The Distinction Between Class 125 And Class 150 Flange?

Within the ANSI/ASME specifications described above, there are 4 main pressure classes. Cast iron flanges or flanged fittings are classified as Class 125 and Class 250, respectively. While ductile iron and steel are classified as Class 150 Flange and Class 300. As a result, ANSI/ASME B16.1 Class 125 flanges are manufactured of cast iron.
However, the bolting design is the identical for both Class 125 and 150, they will attach together irrespective of substance. This also applies to Classes 250 and 300. Cast iron flanges are typically flat faced, whereas ductile iron or steel flanges are typically raised face. The elevated surface of the mating flange must be eliminated when attaching a cast iron to a ductile iron flange.

Can I Connect A 150# Flanges Rating Flanges With A 300 Rating Flanges?

No, because their outside diameters, amount of bolt holes, and bolt sizes differ. However, a 300 rating flanges can be used in a 150# Flanges grading pipeclass. So use that where there is a pipe specification split of differing rating pipe categories at the flange connection.

What Is A ASME B16.5 Class 150 Forged Flanges And Its Types?

The ASME B16. 5 standard addresses not only ASME B16.5 Class 150 Forged Flanges but also connections and pressure-temperature specifications. Aside from Class 150 Pressure Ratings, the standard offers pressure rating class classifications such as 900, 1500, or 2500.

Largest manufacturer Of ASME CL150 Blind Flange In UAE According To International Standards, Check 150 LB Flange Dimensions/ Weight/ Pressure Rating/ Thickness/ Bolt Size/ Gasket Chart

Advantages And Disadvantages Of 150 LB Flange

A slip on flange only minimizes room and weight.But it also guarantees that the connection will not leakage and has superior sealing ability. The compact flange's size is lowered by decreasing the radius of the seal. It will the cross-section of the seal area. Secondly, the sealing ring has substituted the 150 LB Flange gasket to guarantee that the seal confronts the sealing surface.

Select Your Size And Schedule In Our Online Inventory Of Class 150 Long Weld Neck Flange Material, Buy ASME B16.5 CL150 Threaded Flanges In Dubai At Factory Price

Table of content

Specialized in manufacturing

Class 150 Flange

Class 150 flange is rated to approximately 270 PSIG at ambient conditions and 180 PSIG at approximately 400°F.

Size

1/2 Inches to 24 Inches

Class

150

ASTM

A182, A105, A350

ASME

B16.5

Class 150 ANSI B16.5 Forged Flanges

Significance

ASME Class 150 considers characteristics of flanges, such as diameter, wall thickness, weight and length for global manufacturing and engineering.

Features

Flanges have a max. working pressure of 150 KG according square inch (PSI), with their glass reinforcement contributing to their strength and durability.

Welding

These flanges ANSI B 16.5 Class 150, high pressure flanges may be effortlessly assembled into any pipe without welding.

Class 150 Forged Flanges Cleaning

Class 150 Flanges is a great addition to a piping system which would eliminate your issues and hassles of maintaining and cleaning the piping machine.
Class 150 Flanges are one of the maximum critical additives of the piping system. They have various usage in industries related to pressure vessel and pumping.

Advantage Of 150# Pipe Flanges

Class 150 Flanges which includes serrated end of round 24-55 grooves per Inches.
This results in 125-500 RMS surface finish, with both spiral or concentric serrations.
150# Forged Flanges are made with stainless steel 304L and 316L flanges, which ensures that the materials are fully resistant to corrosion.

Face Types Of 150LB Flanges

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

150# Flange Specifications

Specifications	Class 150 Flange
Certificate	ISO
Supply Ability	500 Ton Per Month
Schedule	SCH 5S To XXS
Payment Type	L/C,T/T,D/P,Paypal
Transportation In	Air & Ocean and Land
Pressure Class	150 To 2500
Methods Of Forging	Casting Forging Rolling Cutting
Use In	Marine & dredging Sanitation Process Instrumentation Oil and Gas Petrochemical/ Refinery/Chemical Power etc.
Equipment	Pushing Machine Press machine electric bevelling machine
Available Packing	Packing In Plywood Box And Plywood Pallet
Brand Name	Schulzmann
Testing	Hydrostatic testing machine Magnetic particle detector Direct-reading Spectrograph UI trasonic flaw detector
Class 150 Flange Manufacturer In UAE Size	NPS 1⁄₂" To NPS 48”
Supporting Material For Flanges	Gasket/ Ring Joint/ Flanges Bolts
Manufacturing Productivity	700 ton per month

Class 150 Flange Price

Description	Price In US ($)
Flanges Weld Neck, RF, Class 150, 3/4 Inch Sch 80/XS A105N	US $12.67 Per KG
Flanges Blind, RF, Class 150, 3/4 A105N	US $12.21 Per KG
A182 GR F304/304L, Slip On Flanges, 300 RF, 2 Inch, SCH 80	US $458.08 Per KG
Blind Flanges, CLASS 150 PSI, 3 INCH, SCH 40, RF	US $217.29 Per KG
4 IN, ANSI 150 LB FLANGE END, 8 HOLE,	US $127.66 Per KG
Flanges Weld Neck, RF, Class 150, 2 Inch, Sch80/XS A105N	US $93.91 Per KG
Flanges Weld Neck, RF, Class 150, 3/4 Inch, Sch 80/XS A105N	US $6.34 Per KG
Flanges Weld Neck, RF, Class 150, 4 Inch Sch 40/Std A105N	US $38.50 Per KG
A182 GR F304/304L, Slip On Flanges, 150 RF, 3/4 Inch, SCH 120	US $395.53 Per KG
Blind Flanges, RF, CLASS 150, B16.5, A182 F316/F316L 1/2'	US $30.46 Per KG

Types Of ASME B16.5 Class 150 Forged Flanges

ANSI 150 Slip On Flanges

Class 150 Blind Flanges

Class 150 Welding Neck Flanges

Class 150 Socket Weld Flanges

Class 150 Plate Flanges

ASME B16.5 Class 150 Lap Joint Flanges

150 LBS Threaded Flanges

ASME 150LB Raised Face Flanges

Class 150 High Hub Blind Flanges

Class 150 Pipe Flanges

Class 150 Stainless Steel Flanges

Class 150 Carbon Steel Flanges

Class 150 Flange Dimensions In Mm

NPS /strong>	O.D. of flanges	Minimum WT	Length Of Overall			B.C.	Number Holes		O.D. of R/F
NPS /strong>	O.D. of flanges	Minimum WT	WNRF	SORF & SWRF BLRF	Lapped Joint	B.C.	Number Holes		O.D. of R/F
	O	Q	Y			Diameter	Number	Diameter	R
1/2	89	11.2	47.6	15.9	15.9	60.5	4	15	35
3/4	117	15.9	57.2	25.4	25.4	82.5	4	15	43
1	108	14.3	55.6	17.5	17.5	79.5	4	15	51
1.1/4	117	15.9	57.2	20.6	20.6	89.0	4	15	64
1.1/2	127	17.5	61.9	22.2	22.2	98.5	4	15	73
2	152	19.1	63.5	25.4	25.4	120.5	4	19	92
2.1/2	178	22.3	69.8	28.6	28.6	139.5	4	19	105
3	190	23.9	69.8	30.2	30.2	152.5	4	19	127
3.1/2	216	23.9	71.4	31.8	31.8	178.0	8	19	140
4	229	23.9	86.2	33.3	33.3	190.5	8	19	157
5	254	23.9	88.9	36.5	36.5	216.0	8	22	186
6	279	25.4	88.9	39.7	39.7	241.5	8	22	216
8	343	28.6	101.6	44.4	44.4	298.5	8	22	270
10	406	30.2	101.6	49.2	49.2	362.0	12	25	324
12	483	31.8	114.3	55.6	55.6	432.0	12	25	381
14	533	35.0	127.0	57.2	79.4	476.0	12	29	413
16	597	36.6	127.0	63.5	87.3	539.5	16	29	470
18	635	39.7	139.7	68.3	96.8	578.0	16	32	533
20	698	42.9	144.5	73.0	103.2	635.0	20	32	584
24	813	47.7	152.4	82.6	111.1	749.5	20	35	692

Class 150 Long Weld Neck Flange Dimensions

NPS	O.D. Of (A)	R/F Diameters Of (B)	Wall Thickness Of (C)	Bore Diameters (D)	Hub Diameters at Base (J)	Hub Length (K)	Nuts & Bolts Stop Diameters NS	Bolts & Nuts Relief Diameters NR	Bolts & Nuts Relief Length Of NL	Number of Bolts Holes	Bolts Holes Diameter	B.C. Diameters Of (P)	Weight in (KG)
1/2	3 1/2	1 3/8	7/16	0.50	1 1/4	9	1 1/2	1 1/4	3/4	4	5/8	2 3/8	21
3/4	3 7/8	1 11/16	1/2	0.75	1 5/8	9	1 7/8	1 5/8	3/4	4	5/8	2 3/4	27
1	4 1/4	2	9/16	1.00	2	9	2 1/ 4	2	3/4	4	5/8	3 1/8	30
1 1/4	4 5/8	2 1/2	5/8	1.25	2 3/8	9	2 5/8	2 3/8	3/4	4	5/8	3 1/2	36
1 1/2	5	2 7/8	11/16	1.50	2 5/8	9	3	2 5/8	3/4	4	5/8	3 7/8	41
2	6	3 5/8	3/4	2.00	3 1/4	9	3 11/ 16	3 1/16	7/8	4	3/4	4 3/4	57
2 1/2	7	4 1/8	7/8	2.50	3 3/4	9	4 7/16	3 3/4	7/8	4	3/4	5 1/2	79
3	7 1/2	5	15/16	3.00	4 1/4	9	4 15/15	4 1/4	7/8	4	3/4	6	86
3 1/2	8 1/2	5 1/2	15/16	3.50	4 7/8	9	5 15/16	4 7/8	7/8	8	3/4	7	110
4	9	6 3/16	15/16	4.00	5 1/2	12	6 7/16	5 1/2	7/8	8	3/4	7 1/2	164
5	10	7 5/16	15/16	5.00	6 1/2	12	7 1/2	6 1/2	1	8	7/8	8 1/2	189
6	11	8 1/2	1	6.00	7 3/4	12	8 1/4	7 3/4	1	8	7/8	9 1/2	216
8	13 1/2	10 5/8	1 1/8	8.00	9 3/4	12	10 1/2	9 3/4	1	8	7/8	11 3/4	292
10	16	12 3/4	1 3/16	10.00	12	12	12 7/8	12	1 1/8	12	1	14 1/4	382
12	19	15	1 1/4	12.00	14 3/8	12	15 9/16	14 3/8	1 1/2	12	1	17	535
14	21	16 1/4	1 3/8	14.00	16	12	17 1/8	16	1 1/4	12	1 1/8	18 3/4	585
16	23 1/2	18 1/2	1 7/16	16.00	18	12	19 5/8	18	1 1/4	16	1 1/8	21 1/4	714
18	25	21	1 9/16	18.00	20	12	20 15/16	20	1 3/8	16	1 1/4	22 3/4	711
20	27 1/2	23	1 11/16	20.00	22	12	23 3/16	22	1 3/8	20	1 1/4	25	840

ANSI 150 Bleed Or Drip Ring Dimensions

NPS	ID	ODbyPressure
1	28.6	63.5
1.1/2	41.3	82.6
2	54	101.6
2.1/2	63.5	120.7
3	79.4	133.4
4	104.8	171.5
6	155.6	219.1
8	203.2	276.2
10	257.2	336.6
12	304.8	406.4

Dimensions Of Class 150 Spades And Ring Spacers

NPS	OD Of (A)	ID Of (B)	Center-to-End (C)	WT Of(T)	Handle Width (W)
1/2	45	16	126	3	32
3/4	54	21	131	3	32
1	64	27	136	3	32
1.1/4	73	42	145	6.4	32
1.1/2	83	48	145	6.4	32
2	102	61	155	6.4	32
2.1/2	107	73	170	6.4	32
3	133	89	170	6.4	32
3.1/2	159	102	202	9.7	38
4	172	114	202	9.7	38
5	194	141	225	9.7	38
6	219	168	225	12.7	38
8	276	219	267	12.7	38
10	337	273	322	15.7	44
12	406	324	357	19.1	44
14	448	356	378	19.1	44
16	511	406	410	22.4	44
18	546	457	427	25.4	51
20	603	508	455	28.4	51
24	714	610	512	31.8	51

Class 150 Studding Outlet Dimensions

Normal Size	OD of	WT of	Dia. of (R/F)	Dia. Of B.C.	Hole Size	No. Of Bolt Holes	Hole Depth	Tap Size	Threads In Inches T.P.I	Tap Depth	Flat Bottom Weight AS Per Kilogram	-
B	O	T	R	C	U	V	Base	per 1″	-	-	-	-
1/2	3.5	1.25	1.38	2.38	27/64	4	0.88	1/2	13	0.56	3	2.7
3/4	3.88	1.25	1.69	2.75	27/64	4	0.88	1/2	13	0.56	3.7	3.2
1	4.25	1.25	2	3.12	27/64	4	0.88	1/2	13	0.56	4.3	3.8
1 1/4	4.62	1.25	2.5	3.5	27/64	4	0.88	1/2	13	0.56	5.1	4.4
1 1/2	5	1.25	2.88	3.88	27/64	4	0.88	1/2	13	0.56	5.9	5.1
2	6	1.5	3.62	4.75	17/32	4	1.12	5/8	11	0.75	10.2	7.1
2 1/2	7	1.5	4.12	5.5	17/32	4	1.12	5/8	11	0.75	14	9.5
3	7.5	1.5	5	6	17/32	4	1.12	5/8	11	0.75	15	11
3 1/2	8.5	1.5	5.5	7	17/32	8	1.12	5/8	11	0.75	19	13
4	9	1.5	6.19	7.5	17/32	8	1.12	5/8	11	0.75	20	14
5	10	1.75	7.31	8.5	21/32	8	1.31	3/4	10	0.88	28	17
6	11	1.75	8.5	9.5	21/32	8	1.31	3/4	10	0.88	31	19
8	13.5	1.75	10.62	11.75	21/32	8	1.31	3/4	10	0.88	46	26
10	16	1.81	12.75	14.25	49/64	12	1.44	7/8	9	1	58	35
12	19	1.81	15	17	49/64	12	1.44	7/8	9	1	83	48
14	21	2	16.25	18.75	7/8	12	1.56	1	8	1.12	102	55
16	23.5	2	18.5	21.25	7/8	16	1.56	1	8	1.12	123	66
18	25	2.25	21	22.75	1	16	1.81	1 1/8	8	1.25	140	67
20	27.5	2.25	23	25	1	20	1.81	1 1/8	8	1.25	166	79
24	32	2.5	27.25	29.5	1 1/8	20	2.12	1 1/4	8	1.44	231	100

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Class 150 Flat Face Flange Dimensions

Normal Size	Diameter		ID	holes No.	Diameter	WT	Diameter of (B.C)	Bolt Holes Diameter	Weight In Kilogram
(DN)	(ISO)	(DIN)	(D5)	(BN)	(D)	(b)	(K)	(d2)	(KG/PCS)
10	–	14	14.5	4	90	16	60	14	0.7
10	17.2	–	17.7	4	90	16	60	14	0.69
15	–	20	21	4	95	16	65	14	0.77
15	21.3	–	22	4	95	16	65	14	0.77
20	–	25	26	4	105	18	75	14	1.06
20	26.9	–	27.6	4	105	18	75	14	1.05
25	–	30	31	4	115	18	85	14	1.27
25	33.7	–	34.4	4	115	18	85	14	1.25
32	–	38	39	4	140	18	100	18	1.86
32	42.4	–	43.1	4	140	18	100	18	1.83
40	–	44.5	45.5	4	150	18	110	18	2.12
40	48.3	–	49	4	150	18	110	18	2.09
50	–	57	58.1	4	165	20	125	18	2.78
50	60.3	–	61.1	4	165	20	125	18	2.74
65	76.1	–	77.1	8	185	22	145	18	3.48
80	88.9	–	90.3	8	200	24	160	18	4.33
100	–	108	109.6	8	235	24	190	22	5.82
100	114.3	–	115.9	8	235	24	190	22	5.61
125	–	133	134.8	8	270	26	220	26	7.91
125	139.7	–	141.6	8	270	26	220	26	7.6
150	–	159	161.1	8	300	28	250	26	10.12
150	168.3	–	170.5	8	300	28	250	26	9.58
175	193.7	–	196.1	12	350	32	295	30	14.45
200	219.1	–	221.8	12	375	34	320	30	16.9
250	–	267	270.2	12	450	38	385	33	27.28
250	273	–	276.2	12	450	38	385	33	26.51
300	323.9	–	327.6	16	515	42	450	33	36.38
350	355.6	–	359.7	16	580	46	510	36	52.83
350	–	368	372.2	16	580	46	510	36	50.24
400	406.4	–	411	16	660	50	585	39	74.71
400	–	419	423.7	16	660	50	585	39	71.44
500	508	–	513.6	20	755	52	670	42	86.87
600	610	–	616.5	20	890	54	795	48	121.84
700	711	–	716	24	995	58	900	48	150.93
800	813	–	818	24	1140	64	1030	56	219.08
900	914	–	920	28	1250	70	1140	56	271.16
1000	1016	–	1022	28	1360	78	1250	56	344.95

ASME B16.5 Class 150 Flange Thickness

Normal Size	OD	Minimum WT (T)	Diameter Of R/F	Bolt Holes No.	Dia. Of Holes	B.C.	Bore Of SORF ID	Bore Of WNRF ID	Dia. Of Hub Base	Hub Top Dia.	Length Of SORF	Length Of WNRF
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	-	-	-	-	-

Bolt Size Chart For Class 150 Flange

Size in (Inches)	Size in (Millimeter)	Bolts Number	Bolts Size In UNC	Stud Length (RF)	Stud Size In ISO	Machine Bolts Length
1/2	15	4	1/2	55	M14	50
3/4	20	4	1/2	65	M14	50
1	25	4	1/2	65	M14	55
1 1/4	32	4	1/2	70	M14	55
1 1/2	40	4	1/2	70	M14	65
2	50	4	5/8	85	M16	70
2 1/2	65	4	5/8	90	M16	75
3	80	4	5/8	90	M16	75
3 1/2	90	8	5/8	90	M16	75
4	100	8	5/8	90	M16	75
5	125	8	3/4	95	M20	85
6	150	8	3/4	100	M20	85
8	200	8	3/4	110	M20	90
10	250	12	7/8	115	M24	100
12	300	12	7/8	120	M24	100
14	350	12	1	135	M27	115
16	400	16	1	135	M27	115
18	450	16	1 1/8	145	M30	125
20	500	20	1 1/8	160	M30	140
24	600	20	1 1/4	170	M33	150

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Number Of Bolt Holes In 150LB Flange

NPS (in inch)	Class 150 Flanges
NPS (in inch)	Diameter ( in Inches)	Number of Bolts	Diameter of Bolts (in Inches)	Diameter of Bolts Holes (in Inches)	(B.C.) (in Inches)
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-1/2	4	1/2	0.62	2-3/8
3/4	3-7/8	4	1/2	0.62	2-3/4
1	4-1/4	4	1/2	0.62	3-1/8
1-1/4	4-5/8	4	1/2	0.62	3-1/2
1-1/2	5	4	1/2	0.62	3-7/8
2	6	4	5/8	0.75	4-3/4
2-1/2	7	4	5/8	0.75	5-1/2
3	7-1/2	4	5/8	0.75	6
3-1/2	8-1/2	8	5/8	0.75	7
4	9	8	5/8	0.75	7-1/2
5	10	8	3/4	0.88	8-1/2
6	11	8	3/4	0.88	9-1/2
8	13-1/2	8	3/4	0.88	11-3/4
10	16	12	7/8	1	14-1/4
12	19	12	7/8	1	17
14	21	12	1	1.12	18-3/4
16	23-1/2	16	1	1.12	21-1/4
18	25	16	1-1/8	1.25	22-3/4
20	27-1/2	20	1-1/8	1.25	25
24	32	20	1-1/4	1.38	29-1/2

Class 150 Flange Weight Chart

Normal Size In Inch	Normal Size In MM	OD In (MM)	WT Of (D) In MM)	SORF SWRF	WNRF	BLRF
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

Class 150 Flange Pressure Rating

Temperature (in F°)	150#
100	285
200	260
300	230
400	200
500	170
600	140
650	125
700	110
750	95
800	80
850	65
900	50
950	35
1000	20
Hydrostatic Test (psig)	450

Class 150 Flange Gasket Dimensions

Normal Pipe Size In Inch	(I.D.) Gasket	(O.D.) Gasket
Class 150
1/2	0.84	1.875
3/4	1.06	2.25
1	1.31	2.625
1 1/4	1.66	3
1 1/2	1.91	3.375
2	2.38	4.125
2 1/2	2.88	4.875
3	3.50	5.375
4	4.50	6.875
5	5.56	7.75
6	6.62	8.75
8	8.62	11
10	10.75	13.375

ANSI 150# Flange Torque Specs

NPS Size Inch	NPS Size MM	(Max.) Radial Projection
NPS Size Inch	NPS Size MM	No Deeper Than the Bottom In (MM)	Deeper Than the Bottom In (MM)
1/2	15	3.0	1.5
3/4	20	3.0	1.5
1	25	3.0	1.5
1 1/4	32	3.0	1.5
1 1/2	40	3.0	1.5
2	50	3.0	1.5
2 1/2	65	3.0	1.5
3	80	4.5	1.5
3 1/2	90	6.0	3.0
4	100	6.0	3.0
5	125	6.0	3.0
6	150	6.0	3.0
8	200	8.0	4.5
10	250	8.0	4.5
12	300	8.0	4.5
14	350	8.0	4.5
16	400	10.0	4.5
18	450	12.0	6.0