Home / Products / Flanges / ASME B16.5 Lapped Joint Flanges

Our company's quality assurance is carried throughout the process from the raw material purchasing to processing, packing, storage and transportation. Every process strictly conforms to the ISO 9001:2008. "Quality First" is our promise forever to any of our customers. Our ASME B16.5 Lapped Joint Flanges are 100% inspected before being packed and dispatched & all our materials are tested to International standards. We have 3 levels to check quality of ASME B16.5 Lapped Joint Flanges. We also accept any Third Party of Inspection appointed by our customers, such as Lloyd's Register, TUV, DNV, BV, SGS, IEI, SAI and etc.

ASME B16.5 Lapped Joint Flanges

Dimensions

Diameter : 1/2" à 24"

Pressure class : 150# - 300# - 600# - 1500#

Standards

• ASTM A182 - ASME SA182 - 'Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings'
• ASME B16.5- 'Pipe Flanges and Flanged Fittings'
• MSS SP-6 - 'Standard Finishes for Contact Faces of Pipe Flanges and Connecting End Flanges of Valves and Fittings'

150Lbs      -      300Lbs      -      600Lbs

The tables below show the most common sizes but are not exhaustive.

---

150 Lbs

						Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (B)	Dia. (A)	Height (H)	Nbr	Holes	Dia. (C)
1/2"	90	11.2	30	22.9	16	4	15.87	60.3
3/4"	100	12.7	38	28.2	16	4	15.87	69.9
1"	110	14.3	49	34.9	17	4	15.87	79.4
1 1/4"	115	15.9	59	43.7	21	4	15.87	88.9
1 1/2"	125	17.5	65	50.0	22	4	15.87	98.4
2"	150	20.7	78	62.5	25	4	19.05	120.7
2 1/2"	180	22.3	90	75.4	29	4	19.05	139.7
3"	190	23.9	108	91.4	30	4	19.05	152.4
3 1/2"	215	23.9	122	104.1	32	8	19.05	177.8
4"	230	23.9	135	116.8	33	8	19.05	190.5
5"	255	23.9	164	144.4	36	8	22.22	215.9
6"	280	25.4	192	171.4	40	8	22.22	241.3
8"	345	28.6	246	222.2	44	8	22.22	298.5
10"	405	30.2	305	277.4	49	12	25.40	362.0
12"	485	31.8	365	328.2	56	12	25.40	431.8
14"	535	35.0	400	360.2	79	12	28.57	476.3
16"	595	36.6	457	411.2	87	16	28.57	539.8
18"	635	39.7	505	462.3	97	16	31.75	577.9
20"	700	42.9	559	514.4	103	20	31.75	635.0
24"	815	47.7	663	616.0	111	20	34.92	749.3

The dimensions are in millimeters
Source : ASME B16.5 - 2007

---

300 Lbs

						Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (B)	Dia. (A)	Height (H)	Nbr	Holes	Dia. (C)
1/2"	95	14.3	38	22.9	22	4	15.87	66.7
3/4"	115	15.9	48	28.2	25	4	19.05	82.6
1"	125	17.5	54	34.9	27	4	19.05	88.9
1 1/4"	135	19.1	64	43.7	27	4	19.05	98.4
1 1/2"	155	20.7	70	50.0	30	4	22.22	114.3
2"	165	22.3	84	62.5	33	8	19.05	127.0
2 1/2"	190	25.4	100	75.4	38	8	22.22	149.2
3"	210	28.6	117	91.4	43	8	22.22	168.3
3 1/2"	230	30.2	133	104.1	44	8	22.22	184.2
4"	255	31.8	146	116.8	48	8	22.22	200.0
5"	280	35.0	178	144.4	51	8	22.22	235.0
6"	320	36.6	206	171.4	52	12	22.22	269.9
8"	380	41.3	260	222.2	62	12	25.40	330.2
10"	445	47.7	321	277.4	95	16	28.57	387.4
12"	520	50.8	375	328.2	102	16	31.75	450.8
14"	585	54.0	425	360.2	111	20	31.75	514.4
16"	650	57.2	483	411.2	121	20	34.29	571.5
18"	710	60.4	533	462.3	130	24	34.29	628.6
20"	775	63.5	587	514.4	140	24	34.29	685.8
24"	915	69.9	702	616.0	152	24	41.27	812.8

The dimensions are in millimeters
Source : ASME B16.5 - 2007

---

600 Lbs

						Drilling
Nominal Bore	Dia. (D)	Thick. (E)	Dia. (B)	Dia. (A)	Height (H)	Nbr	Holes	Dia. (C)
1/2"	95	14.3	38	23.6	22	4	15.87	66.7
3/4"	115	15.9	48	29.0	25	4	19.05	82.6
1"	125	17.5	54	35.8	27	4	19.05	88.9
1 1/4"	135	20.7	64	44.4	29	4	19.05	98.4
1 1/2"	155	22.3	70	50.6	32	4	22.22	114.3
2"	165	25.4	84	63.5	37	8	19.05	127.0
2 1/2"	190	28.6	100	76.2	41	8	22.22	149.2
3"	210	31.8	117	92.2	46	8	22.22	168.3
3 1/2"	230	35.0	133	104.9	49	8	25.40	184.2
4"	275	38.1	152	117.6	54	8	25.40	215.9
5"	330	44.5	189	144.4	60	8	28.57	266.7
6"	355	47.7	222	171.4	67	12	28.57	292.1
8"	420	55.6	273	222.2	76	12	31.75	349.2
10"	510	63.5	343	276.2	111	16	34.92	431.8
12"	560	66.7	400	328.6	117	20	34.92	489.0
14"	605	69.9	432	360.4	127	20	38.10	527.0
16"	685	76.2	495	411.2	140	20	41.27	603.2
18"	745	82.6	546	462.0	152	20	44.45	6654.0
20"	815	88.9	610	512.8	165	24	44.45	723.9
24"	940	101.6	718	614.4	184	24	50.80	838.2

The dimensions are in millimeters
Source : ASME B16.5 - 2007

Main Export Market

• Eastern Europe
• North America
• Mid East/Africa
• Central/South America
• Asia
• Western Europe
• Australasia
• UAE

Sales Locations

U.A.E,
Oman,
Saudi Arabia,
Qatar,
Bahrain,
Egypt,
Turkey
Singapore,
Thailand,
Malaysia
Indonesia
Poland
Italy
Portugal
Spain
Brazil
Chile
Venezuela
Costa Rica
USA
Canada
Angola
Sri Lanka
Russia