We are involved in offering a quality range of Industrial Flanges, which is high in durability and can withstand extreme conditions. These industrial flanges are available in different grades, class, and other technical specifications as per the client’s requirements. Our range is commonly used to connect other threaded components in low pressure and non-critical applications.

Dimensions

> Class 150
> Class 300
> Class 600
> Class 900
> Class 1500
> Class 2500

ANSI B 16.5 Class 150 Flanges

Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Overall         Length			Bolt  Circle	No. and Size of Holes		O.D. of raised face
			Welding neck	Slip-on & socket welding	Lap Joint
	O	Q	Y			Diam.	No.	dia.	R
1/2	89	11.2	47.6	15.9	15.9	60.5	4	15	35
3/4	98.6	12.7	52.3	15.7	15.7	69.8	4	16	42.9
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

 

ANSI B 16.5 Class 300 IB Flanges

Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Overall Length			Bolt  Circle	No. and  Size of Holes		O.D. of raised face
			Welding  neck	Slip-on & socket welding	Lap Joint
	O	Q	Y			Diam.	No.	dia.	R
1/2	95	14.3	52.4	22.2	22.2	666.5	4	15	35
3/4	117	15.9	57.2	25.4	25.4	82.4	4	19	43
1	124	17.5	61.9	27.0	27.0	89.0	4	19	51
1-1/4	133	19.1	65.1	27.0	27.0	98.5	4	19	64
1-1/2	156	20.7	68.3	30.2	30.2	114.5	4	22	73
2	165	22.3	69.8	33.3	33.3	127.0	8	19	92
2-1/2	190	25.4	76.2	38.1	38.1	149.0	8	22	105
3	210	28.6	79.4	42.9	42.9	168.0	8	22	127
4	254	318	85.7	47.6	47.6	200.0	8	22	157
5	279	35.0	98.4	50.8	50.8	235.0	8	22	186
6	313	36.6	98.4	52.4	52.4	270.0	12	22	216
6	381	413	111.1	61.9	91.9	330.0	12	25	270
10	444	47.7	117.5	66.7	95.3	387.5	16	29	324
12	521	50.8	130.2	73.0	101.6	451.0	16	32	381
14	584	54.0	142.9	76.2	111.1	514.5	20	32	413
16	648	57.2	146.0	82.6	120.7	571.5	20	35	470
18	711	60.4	158.8	88.9	130.2	628.5	24	35	533
20	775	63.5	161.9	95.2	139.7	686.0	24	35	584
24	914	69.9	168.3	106.4	152.4	843.0	24	41	692

 

ANSI B 16.5 Class 600 IB Flanges

Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Overall Length			Bolt Circle	No. and Size of Holes		O.D. of raised face
			Welding neck	Slip-on  & socket welding	Lap Joint
	O	Q	Y			Diam.	No.	dia.	R
1/2	95	14.3	52.4	22.2	22.2	66.5	4	15	35
3/4	117	15.9	57.2	25.4	25.4	82.5	4	19	43
1	124	17.5	61.9	27.0	27.0	89.0	4	19	51
1-1/4	133	20.7	66.7	28.6	28.6	98.5	4	19	64
1-1/2	156	22.3	69.8	31.8	31.8	114.5	4	22	73
2	165	25.4	73.0	36.5	36.5	127.0	8	19	92
2-1/2	190	28.6	79.4	41.3	41.3	149.0	8	22	105
3	210	31.8	82.6	46.0	46.0	168.0	8	22	127
3-1/2	229	35.0	85.7	49.2	49.2	184.0	8	25	140
4	273	38.1	101.6	54.0	54.0	216.0	8	25	157
5	330	44.5	114.3	60.3	60.3	266.5	8	29	186
6	356	47.7	117.5	66.7	66.7	292.0	12	29	216
8	419	55.6	133.4	76.2	76.2	349.0	12	32	270
10	508	63.5	152.4	85.7	115.1	432.0	16	85	324
12	559	66.7	155.6	92.1	111.1	489.0	20	35	381
14	603	69.9	165.1	93.7	117.5	527.0	20	38	413
16	686	76.2	177.8	106.4	127.0	603.0	20	41	470
18	743	82.6	184.2	117.6	139.7	654.0	20	45	533
20	813	88.9	190.5	127.0	165.1	724.0	24	45	584
24	940	101.6	203.2	139.7	184.2	838.0	24	51	692

 

ANSI B 16.5 Class 900 IB Flanges

Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Overall Length			Bolt Circle	No. and  Size of  Holes		O.D. of raised face
			Welding neck	Slip-on &  socket  welding	Lap Joint
	O	Q	Y			Diam.	No.	dia.	R
1/2	121	22.3	60.3	31.8	31.8	82.5	4	22	35
3/4	130	25.4	69.8	34.9	34.9	89.0	4	22	43
1	149	28.6	78.0	41.3	41.3	101.5	4	25	51
1-1/4	159	28.6	78.0	41.3	41.3	111.0	4	25	64
1-1/2	178	31.8	82.6	44.4	44.4	124.0	4	29	78
2	216	38.1	101.6	57.2	57.2	165.0	8	25	92
2-1/2	244	41.3	104.8	63.5	63.5	190.5	8	29	105
8	241	38.1	101.6	54.0	54.0	190.5	8	25	127
3-1/2
4	292	44.5	114.3	69.8	69.8	235.0	8	32	157
5	349	50.8	127.0	79.4	79.4	279.5	8	35	186
6	381	55.6	189.7	85.7	85.7	317.5	12	32	216
8	470	68.5	161.9	101.8	114.3	393.5	12	38	270
10	546	69.9	184.2	108.0	127.0	470.0	16	38	324
12	610	79.4	200.0	117.5	142.9	533.5	20	38	381
14	584	54.0	142.9	76.2	111.1	514.5	20	32	413
16	711	60.4	158.8	88.9	130.2	628.5	24	35	533
20	775	63.5	161.9	95.2	139.7	686.0	24	35	584
24	914	69.9	168.3	106.4	152.4	843.0	24	41	692

 

ANSI B 16.5 Class 1500 IB Flanges

Normal pipe size	Outside dia. of flange	Minimum  thickness of flange	Overall          Length			Bolt  Circle	No. and Size of  Holes		O.D.  of raised face
			Welding neck	Slip-on &  socket  welding	Lap  Joint
	O	Q	Y			Diam.	No.	dia.	R
1/2	121	22.3	60.3	31.8	31.8	82.5	4	22	35
3/4	130	25.4	69.8	34.9	34.9	89.0	4	22	43
1	149	28.6	73.0	41.3	41.3	101.5	4	25	51
1-1/4	159	28.6	73.0	41.3	41.3	111.0	4	25	64
1-1/2	178	31.8	82.6	44.4	44.4	124.0	4	29	73
2	216	38.1	101.6	57.2	57.2	165.0	8	25	92
2-1/2	244	41.3	104.8	63.5	63.5	190.5	8	29	105
3	267	47.7	117.5	73.0	73.0	203.0	8	32	127
3-1/2
4	311	54.0	123.8	90.5	90.5	241.5	8	35	157
5	375	73.1	155.5	104.8	104.8	292.0	8	41	186
6	394	82.6	171.4	119.1	119.1	317.5	12	38	216
8	483	92.1	212.7	142.9	142.9	393.5	12	45	270
10	584	108.0	254.0	158.8	177.8	482.5	12	51	324
12	673	123.9	282.9	181.0	219.1	571.5	16	54	381
14	749	133.4	298.4	-----	241.3	635.0	16	60	413
16	826	146.1	311.2	-----	260.4	705.0	16	51	470
18	914	162.0	327.0	------	276.2	474.5	16	73	538
20	984	117.8	355.4	-----	292.1	832.0	16	80	584
24	1168	203.2	406.4	-----	330.2	990.5	16	92	692

 

ANSI B 16.5 Class 2500 IB Flanges

Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Overall          Length			Bolt Circle	No. and Size of Holes		O.D. of raised face
			Welding neck	Slip-on & socket welding	Lap Joint
	O	Q	Y			Diam.	No.	dia.	R
1/2	133.4	30.2	73.0	39.7	39.7	88.9	4	22	34.9
3/4	139.7	31.8	79.4	42.9	42.9	95.3	4	22	42.9
1	158.8	34.9	88.9	47.6	47.6	108.0	4	25	50.8
1-1/4	184.2	38.1	95.3	52.4	52.4	130.2	4	29	63.5
1-1/2	203.2	44.5	111.1	60.3	60.3	146.0	4	32	73.0
2	235.0	50.8	127.0	69.9	69.9	171.5	8	29	92.1
2-1/2	266.7	57.2	142.9	79.4	79.4	196.9	8	32	104.8
3	304.8	66.7	168.3	92.1	92.1	228.6	8	35	127.0
3-1/2
4	355.6	76.2	190.5	108.0	108.0	273.0	8	41	157.2
5	419.1	92.1	228.6	130.2	130.2	323.9	8	48	185.7
6	482.6	108.0	273.1	152.4	152.4	268.3	8	54	215.9
8	552.5	127.0	317.5	177.8	177.8	438.2	12	54	269.9
10	673.1	165.1	419.1	228.6	228.6	539.8	12	67	323.9
12	762.0	184.2	463.6	254.0	254.0	619.1	12	73	381.03
14	---	---	---	---	---	---	--	---	---
16	---	---	---	---	---	---	--	---	---
18	---	---	---	---	---	---	--	---	--
20	---	---	---	---	---	---	--	---	--
24	---	---	---	---	---	---	--	---	--