FLANGES

Products Type

Use :

FLANGES DIMENSIONS

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
Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Welding neck	Slip-on & socket welding	Lap Joint	Bolt Circle	No. and Size of Holes		O.D. of raised face
	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	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

300 LB. 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
Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Welding neck	Slip-on & socket welding	Lap Joint	Bolt Circle	No. and Size of Holes		O.D. of raised face
	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

600 LB. 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
Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Welding neck	Slip-on & socket welding	Lap Joint	Bolt Circle	No. and Size of Holes		O.D. of raised face
	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

900 LB. 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
Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Welding neck	Slip-on & socket welding	Lap Joint	Bolt Circle	No. and Size of Holes		O.D. of raised face
	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

1500 LB. 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
Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Welding neck	Slip-on & socket welding	Lap Joint	Bolt Circle	No. and Size of Holes		O.D. of raised face
	O	Q	Y			Diam.	No.	dia.	R
1/2	12.1	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

2500 LB. 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
Normal pipe size	Outside dia. of flange	Minimum thickness of flange	Welding neck	Slip-on & socket welding	Lap Joint	Bolt Circle	No. and Size of Holes		O.D. of raised face
	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	—	—	—	—	—	—	—	—	—

Specialized Products

Tirupati Enterprises – Leading Manufacturer & Exporter of Stainless Steel Flanges and Fittings

Tirupati Enterprises specializes in the manufacturing and supply of Stainless Steel Flanges, Pipe Fittings, Forged Fittings, Butt Weld Fittings, and other carbon and alloy steel products. Since 1991, we have been delivering high-quality industrial flanges and fittings, catering to global standards such as ASME, ASTM, and API.

Our Extensive Range of Stainless Steel Flanges Includes:

SS Slip-On Flange
SS Welding Neck Flange
SS Blind Flange
SS Socket Weld Flange
SS Plate Flange
SS Collar Flange
SS Threaded Flange

We manufacture and export seamless and welded stainless steel flanges to over 60 countries, serving industries across:

Nigeria, Australia, Malaysia, Egypt, South Africa, Kenya, Germany, Turkey, France, the UK, Italy, the Netherlands, Iran, Iraq, Saudi Arabia, UAE, Israel, Jordan, Oman, Kuwait, Qatar, Bahrain, China, Indonesia, South Korea, Pakistan, Singapore, Brazil, Argentina, and the USA.

Global Recognition & Certifications

Tirupati Enterprises is an ISO 9001:2008, ISO 14001, OHSAS 18001 certified company since 2006 and a PED-approved manufacturer since 2008. We are among India's top manufacturers and suppliers of industrial flanges, with approvals from leading global companies, including:

Saudi Aramco
SABIC
Indian Oil
BPCL & HPCL
NTPC & BARC
Indian Navy

Manufacturing Capabilities & Technical Expertise

We manufacture and export pipe flanges ranging from ½” to 200” with pressure ratings of 150 lbs to 3000 lbs, covering a wide spectrum of carbon steel, stainless steel, and alloy steel flanges. Our expertise includes flanges compliant with ANSI, API, MSS, AWWA, DIN, JIS, BS, and GB standards.

Additionally, we specialize in custom ring flanges and precision-engineered forgings as per client specifications. Our production facility ensures stringent quality control, delivering products tailored to petrochemical, chemical, and waterworks industries.

Comprehensive Product Range

Weld Neck Flanges
Slip-On Flanges
Blind Flanges
Threaded Flanges
Socket Weld Flanges
Lap Joint Flanges
Orifice Flanges

📏 Sizes: ½” to 198”

Before purchasing ANSI, API, AWWA pipe flanges, compare our prices and experience the superior quality that makes Tirupati Enterprises a global leader in stainless steel and alloy steel manufacturing.