Doshi Impex India stands out as one of the outstanding Flanges Manufacturers in India, distinguished as a reliable Flanges Supplier, Stockist, and Exporter. With a strong presence in the dynamic steel market of India, we specialise in crafting a wide array of Industrial Pipe Flanges. Our product variety consists of numerous types of flanges which include Threaded Flanges, Welding Neck Flanges, Slip-On Flanges, Lap Joint Flanges, Socket Weld Flanges, Blind Flanges, Orifice Flanges, Long Welding Neck Flanges, Weld Flanges ,Niproflanges, Expander Flanges Reducing Flanges and more.

As a well-known Flanges Supplier in India, we take pleasure in presenting diverse materials for our Flanges, with Stainless Steel Flanges being a usual choice. Our production expertise extends to Duplex Steel Flanges, Super Duplex Steel Flanges, Chrome Moly Flanges, Carbon Steel Flanges, Alloy Steel Flanges, Low-Temperature Flanges, High Nickel Alloys Flanges like Monel Flanges, Inconel Flanges and  Mild Steel (MS) Flanges. We cater to global demands as a Flanges Exporter, presenting face-kind flanges including Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Large Tongue & Groove. Our commitment to excellence is pondered within the advice of Doshi Impex India as a preferred preference among NPT Flanges Manufacturers in India. Our Flanges are customised to sizes ranging from ½” to 24”, with the capability to fulfil requests up to 60” NB. The strain ratings of our Flanges vary from PN 2.5 to PN 250, followed by comprehensive Weight Charts and Common outer diameters of ½”, 2”, 3”, 4”, 6”, 8”, 10”, 12”, to 24”. Our adherence to specific grades and ASTM requirements, such as ASTM A105 for carbon metallic slip-on pipe flanges and ASTM A182 for alloy and stainless slip-on flanges (Alloy for F11, F22, stainless for F304/F304L, F316/F316L), ensures the reliability of our products.

Compliant with ASME B16.5 Pipe Flanges and Flanged Fittings, in addition to BS 3293, and DIN S6029 specs, our Flanges meet ANSI/ASME, EN, BS, and DIN standards. Through bolting, these Flanges seamlessly integrate into piping structures through threading or welding. Engineered for specific pressure ratings, which include 150lb, 300lb, 400lb, 600lb, 900lb, 1500lb, and 2500lb, Doshi Impex India stays devoted as a top-tier Flanges Manufacturer that meets numerous enterprise necessities with precision and excellence.

Specifications & Standards of Flanges

Flanges Size ½” to 24”, customised up to 60” NB
Flanges Standards ASTM, ASME, DIN NFA, and JIS 
Flanges Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Flanges
Standard Grades
  • ASTM A105 for carbon steel slip-on pipe flanges.
  • ASTM A182 for alloy and stainless slip-on flanges. (Alloy for F11, F22, stainless for F304/F304L,F316/F316L)
  • ASME B16.5 for pipe flanges and flanged fittings
  • BS 3293
  • DIN S6029
Flanges Pressure Rating 6 Bar 10 Bar 16 Bar 25Bar 40Bar / PN 2.5, PN6, PN10, PN16, PN25, PN40, PN64 Flanges to P250
Outer Diameters of Flange Sizes ½”, 2”, 3”, 4”, 6”, 8”, 10”, 12”, to 24
Coasting Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanised Flanges
Flanges Manufacturing Method Forged / Threaded / Screwed / Plate
Flanges Types Threaded Flanges

Welding Neck Flanges

Slip-On Flanges

Socket Weld Flanges

Blind Flanges

Special Types of Flanges Orifice Flanges

Long Welding Neck Flanges

Weld Flanges / Niproflanges

Expander Flanges

Reducing Flanges

Connect Types/Flanges Face Type Raised Face (RF)
Ring Type Joint (RTJ)
Flat Face (FF)
Large Male-Female (LMF)
Lap-Joint Face (LJF)
Small Male-Female (SMF)
Small Tongue
Large Tongue & Groove
Flanges Applications
  • Oil and Gas Pipeline
  • Chemical Industry
  • Plumbing
  • Water supply system
  • Power plant
  • Pharmaceuticals
  • Food Processing Industries
  • Sugar Industries
  • Paper & Pulp Industry, and So on
Materials Forms Stainless Steel, Carbon Steel, Duplex and Super Duplex Steel, Chrome Moly, Low Temperature, Aluminium, Titanium, and High Nickel Alloys such as Monel, Inconel, Incoloy, Hastelloy & Alloy 20 Steel
Production Forged, Heat-treated and machined
Flanges Special Design As per your drawing

ANSI/ASME, EN, BS, and DIN

½” to 24”, customised up to 60” NB

Equal & Reducing Configurations

Equipment Used Press Machine, Bending Machine, Pushing Machine, Electric Bevelling Machine, Sand-Blasting Machine, etc.
Country Origin India

Types of Flanges We Offer

  • Threaded Flanges: Threaded flanges have internal threads for easy installation on pipes, making them suitable for low-pressure applications where welding is not preferred.
  • Welding Neck Flanges: Welding neck flanges have a long neck and are designed for high-pressure and high-temperature applications, providing excellent strength and weldability.
  • Slip-On Flanges: Slip-on flanges slide over the pipe and are then welded in place, making installation and removal easier, and suitable for low-pressure and non-critical applications.
  • Socket Weld Flanges: Socket weld flanges have a socket for pipe insertion and welding, providing a strong and leak-resistant connection for applications with moderate pressure and temperature.
  • Blind Flanges: Blind flanges are used to close the end of a pipe system, providing a sealed barrier; commonly used in piping systems where future expansion may be necessary.
  • Orifice Flanges: Orifice flanges are specifically designed to accommodate orifice plates, often used in flow measurement applications in pipelines.
  • Long Welding Neck Flanges: Long-welding neck flanges have an extended neck for additional reinforcement, commonly used in high-pressure and high-temperature applications.
  • Weld Flanges / Niproflanges: These flanges are proprietary designs known for their specialised features, often used in specific industries with unique requirements.
  • Expander Flanges: Expander flanges have a larger bore diameter than standard flanges, allowing for easy expansion or transition between different pipe sizes.
  • Reducing Flanges: Reducing flanges connects pipes of different diameters, providing a smooth transition while maintaining a strong and leak-resistant connection.

Materials Wise Grades We Offer Our Flanges

Materials Grades
Stainless Steel Flanges 304/304L, 316/316L, 317, 904L
Duplex Steel Flanges S32205, S32550, S32520
Super Duplex Steel Flanges S32750
Carbon Steel Flanges ASTM / ASME A 335 GR P1, P5, P9, P11, P12, P22, P23, P91
Alloy Steel Flanges P5, P11, P22, P91
Low-Temperature Flanges ASTM A350 LF2 flange
High- Nickel Alloy Flanges Nickel Alloys 200, Nickel Alloys 201
Monel Flanges Monel 400, Monel k500
Hastelloy Flanges ASTM / ASME SB 574 UNS 10276 (Hastelloy C276, C22)
Inconel Flanges ASTM / ASME SB 425 UNS 8825 (Inconel 825)
ASTM /ASME SB 166 UNS 6600 (Inconel 600) / UNS 6601 (Inconel 601)
ASTM /ASME SB 446 UNS 6625 (Inconel 625)Inconel 600 & Inconel 800
Aluminium Flanges 1050,1100, 2017, 7150, 7178, 7575, 2050, 7085, 2011 A92011, 2014A A92014, 2024 A92024, 2219, 5052 A95052, 5083 A95083, 5754, 6061 A96061 A86061, 6063, 6082 A96082, 7071 7020, 7050 A97050, 7075 A97075 A87075, 7175
Titanium Flanges GR. 2, 4, 6

Face Type Flanges We Offer

  • Raised Face (RF): A common flange facing featuring a raised surface around the bolt circle, enhancing gasket compression and providing a tight seal in various industrial applications.
  • Ring Type Joint (RTJ): Employed in high-pressure and high-temperature environments, RTJ flanges have a groove to accommodate a metal ring gasket, ensuring a reliable seal for critical applications in oil and gas industries.
  • Flat Face (FF): A flange facing with a smooth, flat surface, facilitating easy alignment and gasket installation, commonly used in applications where joint integrity and sealing effectiveness are not as critical.
  • Large Male-Female (LMF): Characterised by a protruding male face on one flange and a corresponding recessed female face on the mating flange, LMF flanges offer increased strength and alignment precision in heavy-duty piping systems.
  • Lap-Joint Face (LJF): Featuring a flat face with a lap-joint stub end, LJF flanges allow easy disassembly and alignment adjustments, making them suitable for systems requiring frequent maintenance or modifications.
  • Small Male-Female (SMF): Similar to LMF, but with smaller dimensions, SMF flanges provide enhanced strength and alignment in compact piping systems where space is limited.
  • Small Tongue: A flange-facing design with a small raised tongue, offering improved alignment and gasket compression in applications where a tight seal is essential, but a fully raised face is not required.
  • Large Tongue & Groove: This type of flange facing incorporates a large tongue on one flange that fits into a corresponding groove on the mating flange, providing additional alignment and sealing capabilities in heavy-duty piping systems.

Flanges Price List in India

Please click on the request a quote button or mail us at our email id ankit.sbc@doshiimpexindia.com, Sunny@doshiimpexindia.com to request the updated flanges price list and ready stock information along with your requirements. 

Flanges Dimensions

DN

(inch)

Dimension ANSI B16.5 Flange Dimensional Sizes 3 to 10 inches Table Chart
125 lbs

150 lbs

300 lbs 400 lbs 600 lbs 900 lbs 1500 lbs 2500 lbs
inch mm inch mm inch mm inch mm inch mm inch mm inch mm
3 A 7 1/2 190.5 81/4 209.6 81/4 209.6 8 1/4 209.6 9 1/2 241 10 1/2 267 12 305
b 15/16 23.8 1 1/8 28.6 11/4 31.8 1 1/4 31.8 1 1/2 38.1 1 7/8 47.6 2 5/8 66.7
D2 5 127 5 127 5 127 5 127 5 127 5 127 5 127
D1 6 152.4 6 5/8 168.3 6 5/8 168.3 6 5/8 168.3 71/2 190.5 8 203 9 228.6
n 4 4 8 8 8 8 8 8 8 8 8 8 8 8
d 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2 1 25.4 1 1/4 31.8 1 3/8 34.9
3 1/2 A 8 1/2 215.9 9 228.6 9 228.6 9 228.6
b 15/16 23.8 13/16 30.2 13/8 34.9 13/8 34.9
D2 5 1/2 139.7 5 /2 139.7 5 1/2 139.7 5 1/2 139.7
D1 7 177.8 7 1/4 184.2 7 1/4 184.2 7 1/4 184.2
n 8 8 8 8 8 8 8 8
d 3/4 19 7/8 22.2 1 25.4 1 25.4
4 A 9 228.6 10 254 10 254 10 3/4 273 11 1/2 292 12 1/4 311 14 356
b 15/16 23.8 1 1/4 31.7 1 3/8 34.9 1 1/2 38.1 1 3/4 44.4 2 1/8 54 3 76.2
D2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2
D1 7 1/2 190 7 7/8 200 7 7/8 200 8 1/2 215.9 9 1/4 235 9 1/2 241 10 3/4 273
n 8 8 8 8 8 8 8 8 8 8 8 8 8 8
d 3/4 19 7/8 22.2 1 25.4 1 25.4 1 1/4 31.8 1 3/8 34.9 1 5/8 41.3
5 A 10 254 11 279.4 11 279.4 13 330.2 13 3/4 349 14 3/4 375 16 1/2 419
b 1 5/16 23.8 13/8 34.9 1 1/2 38.1 1 3/4 44.4 2 50.8 2 7/8 73 3 5/8 92.1
D2 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7
D1 8 1/2 215.9 9 1/4 234.9 9 1/4 234.9 10 1/2 266.7 11 279 11 1/2 292 12 3/4 324
n 8 8 8 8 8 8 8 8 8 8 8 8 8 8
d 7/8 22.2 7/8 22.2 1 25.4 1 1/8 28.6 1 3/8 34.9 1 5/8 41.3 1 7/8 47.6
6 A 11 279 12 1/2 317.5 12 1/2 317.5 14 355.6 15 381 15 1/2 394 19 483
b 1 25.4 17/16 36.5 1 5/8 41.3 1 7/8 47.6 2 3/16 55.6 3 1/4 82.6 4 1/4 108
D2 8 1/2 216 8 1/2 215.9 8 1/2 215.9 8 1/2 215.9 8 1/2 215.9 8 1/2 215.9 8 1/2 216
D1 9 1/2 241 10 5/8 269.9 10 5/8 269.9 11 1/2 292.1 12 1/2 318 12 1/2 318 14 1/2 368
n 8 8 12 12 12 12 12 12 12 12 12 12 8 8
d 7/8 22.2 7/8 22.2 1 25.4 1 1/8 28.6 1 1/4 31.8 1 1/2 38.1 2 1/8 54
8 A 13 1/2 342.9 15 381 15 381 16 1/2 419 18 1/2 470 19 482.6 21 3/4 552
b 1 1/8 28.6 1 5/8 41.3 1 7/8 47.6 2 3/16 55.6 2 1/2 63.5 3 5/8 92.1 5 127
D2 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9
D1 11 3/4 298.4 13 330.2 13 330.2 13 3/4 349.2 15 1/2 394.2 15 1/2 394.2 17 1/4 438
n 8 8 12 12 12 12 12 12 12 12 12 12 12 12
d 7/8 22.2 1 25.4 1 1/8 28.6 1 1/4 31.8 1 1/2 38.1 1 3/4 44.5 2 1/8 54
10 A 16 406.4 17 1/2 444.5 17 1/2 444.5 20 508 21 1/2 546 23 584 26 1/2 673
b 1 3/16 30.2 1 7/8 47.6 2 1/8 54 2 1/2 63.5 2 3/4 69.8 4 1/4 108 6 1/2 165
D2 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8
D1 14 1/4 361.9 15 1/4 387.4 15 1/4 387.4 17 431.8 18 1/2 470 19 482.6 21 1/4 540
n 12 12 16 16 16 16 16 16 16 16 12 12 12 12
d 1 25.4 1 1/8 28.6 1 1/4 31.8 1 3/8 34.9 1 1/2 38.1 2 50.8 2 5/8 66.7

Flanges Weight Charts

Flange Weights by Pressure Class and Size
Pipe Size 150 # 300 # 600 # 900 # 1500 # 2500 #
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 5 4 4 7 7 7
3/4″ 2 2 2 3 3 3 4 3 3 SEE 1500 # WEIGHTS 6 5 6 8 8 8
1″ 3 2 2 4 3 3 4 4 4 SEE 1500 # WEIGHTS 9 8 8 12 11 11
1 1/2″ 4 3 3 7 6 6 8 7 8 SEE 1500 # WEIGHTS 13 12 13 25 22 23
2″ 6 5 5 9 7 8 12 9 10 SEE 1500 # WEIGHTS 25 25 25 42 37 39
2 1/2″ 8 7 7 12 10 12 18 13 15 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

Uses and Applications of Flanges

  • Oil and Gas Pipeline
  • Chemical Industry
  • Plumbing
  • Water supply system
  • Power plant
  • Pharmaceutical
  • Sugar Industry
  • Paper & Pulp Industry
  • General purpose Application
  • Fabrication Industry
  • Food Processing Industry
  • Structural Pipe and so on.

Flanges Supplier in India

We are a leading Flanges Supplier In India. Our high-quality flanges & On-time delivery have made a major presence in major cities of India.

City We Supply Flanges
Bengaluru Mumbai Chennai Hyderabad
New Delhi Ahmedabad Jaipur Surat
Bhiwandi Tiruppur Sivakasi Jamnagar
Bhubaneswar Vijayawada Firozabad Bokaro Steel City
Panna Raipur Cochin Ludhiana
Peenya Pimpri-Chinchwad Channapatna Rajkot
Varanasi Gandhinagar Salem Bangalore
Visakhapatnam Trivandrum Thiruvananthapuram Kolkata
Coimbatore Rajahmundry Nagpur Nashik

Countries We Export Our Flanges

Being a trusted flanges exporter, we offer our flanges all across the globe in various countries including the following;

Iran Saudi – Arabia Egypt United Arab Emirates (UAE)
Kuwait Oman Turkey Indonesia
Dubai Singapore Nigeria India
Tanzania USA Oman Brazil

States And Cities We Have Supplied Our Products To

  • Flanges Supplier in Andhra Pradesh
  • Flanges Supplier in Vijaywada
    Rajahmundry
  • Flanges Supplier in Visakhapatnam
  • Flanges Supplier in Bhilai
  • Flanges Supplier in Raigarh
  • Flanges Supplier in Korba
  • Flanges Supplier in Sirpur
  • Flanges Supplier in Gujarat
  • Flanges Supplier in Bharuch
  • Flanges Supplier in Ankleshwar
  • Flanges Supplier in Haryana
  • Flanges Supplier in Hisar
  • Flanges Supplier in Jharkhand
  • Flanges Supplier in Bokaro Steel
  • Flanges Supplier in City
  • Flanges Supplier in Jamshedpur
  • Flanges Supplier in Karnataka
  • Flanges Supplier in Bhadravati
  • Flanges Supplier in Ballari
  • Flanges Supplier in Bangalore
  • Flanges Supplier in Hubli
  • Flanges Supplier in Kerala
  • Flanges Supplier in Kochi
  • Flanges Supplier in Calicut
  • Flanges Supplier in Thrissur
  • Flanges Supplier in Cherthala
  • Flanges Supplier in Aluva
  • Flanges Supplier in Madhya Pradesh
  • Flanges Supplier in Dewas
  • Flanges Suppliers in Maharashtra
  • Flanges Suppliers in Mumbai
  • Flanges Supplier in  Chandrapur
  • Flanges Supplier in Kolhapur
  • Flanges Supplier in Nashik
  • Flanges Supplier in Solapur
  • Flanges Supplier in Osmanabad
  • Flanges Supplier in  Pimpri – Chinchwad
  • Flanges Supplier in Aurangabad
  • Flanges Supplier in Ambernath
  • Flanges Supplier in Odisha
  • Flanges Supplier in Rourkela
  • Flanges Supplier in Punjab
  • Flanges Supplier in Ludhiana
  • Flanges Supplier in Tamil Nadu
  • Flanges Supplier in Salem
  • Flanges Supplier in Coimbatore
  • Flanges Supplier in Chennai
  • Flanges Supplier in Telangana
  • Flanges Supplier in Hyderabad
  • Flanges Supplier in Uttar Pradesh
  • Flanges Supplier in Muzaffarnagar
  • Flanges Suppliers in Kanpur
  • Flanges Suppliers in Raebareli
  • Flanges Suppliers in Unnao
  • Flanges Suppliers in Uttarakhand
  • Flanges Suppliers in Rudrapur
  • Flanges Supplier in West Bengal
  • Flanges Supplier in Durgapur
  • Flanges Supplier in Asansol
  • Flanges Supplier in Titagarh
  • Flanges Supplier in Kharagpur
  • Flanges Supplier in Baharampur