Flanges Manufacturers in India, Flanges suppliers in India, Flanges Exporters in India
Flanges are like connecting rings that help join pipes, valves, pumps, and other equipment in plumbing, construction, and machinery. Flanges are usually flat and circular, with holes around the edges for bolts to hold them together. Think of them as the glue that holds different parts of a pipe system together. Flanges are essential for keeping everything secure and sealed, preventing leaks and ensuring smooth operation.
Mcneil Instruments is a leading manufacturer and supplier of Flanges in various grades and materials in India. Flanges play a crucial role in connecting valves, pipes, pumps, and other equipment to establish a robust piping system. Additionally, We facilitate convenient access for inspection, maintenance, or cleaning purposes. Flanges are typically affixed through welding or screwing methods. The assembly of flanged joints involves bolting together two flanges with a sealing element in between. Moreover, We serve to seal off pipelines across diverse industries. At Mcneil Instruments, we offer a wide range of Flanges, available in different sizes, shapes, and specifications to cater to the specific demands of our clients.
For a detailed overview of our Flanges, download the comprehensive product summary in PDF format by clicking the button below
For a complete guide to our Flanges Weight Chart, download the detailed product summary in PDF format by clicking the button below.
Best Flanges Manufacturer, Supplier, and Exporter in India
Types of Flanges in India
KOC APPROVED FLANGES
SAUDI ARAMCO APPROVED FLANGES
TAKREER APPROVED FLANGES
ADNOC APPROVED FLANGES
BP APPROVED FLANGES
PDO APPROVED FLANGES
TECHNIP APPROVED FLANGES
SABIC APPROVED FLANGES
PETRO RABIGH APPROVED FLANGES
KNPC APPROVED FLANGES
LAMPRELL APPROVED FLANGES
QATAR GAS APPROVED FLANGES
QATAR PETROLEUM FLANGES
GPIC FLANGES APPROVED
SAUDI ELECTRIC COMPANY APPROVED FLANGES
Other Approved Flanges
SHELL Approved Flanges, Bahrain Petroleum Approved, EXXON Mobil Approved Flanges, Total Energies Approved Flanges, GASCO Approved Flanges, Chevron Corp Approved Flanges, Oxy Approved Flanges, Baker Huges Approved Flanges, ONGC Approved Flanges, Eil Approved Flanges, IOCL Approved Flanges, HPCL Approved Flanges, NOV Approved Flanges, OMV Approved Flanges etc.
SHELL APPROVED FLANGES
BAHRAIN PETROLEUM APPROVED FLANGES
EXXON MOBIL APPROVED FLANGES
TOTAL ENERGIES APPROVED FLANGES
GASCO APPROVED FLANGES MANUFACTURERS
CHEVRON CORP APPROVED FLANGES
OXY APPROVED FLANGES
BAKER HUGES APPROVED FLANGES
ONGC APPROVED FLANGES
EIL APPROVED FLANGES
IOCL APPROVED FLANGES
HPCL APPROVED FLANGES
PETRONAS APPROVED FLANGES
NOV APPROVED FLANGES
IOCL APPROVED FLANGES
Flanges Manufacturers in India, Flanges suppliers in India, Flanges Exporters in India, Flanges Manufacturing Companies in India
Mcneil Instruments is a leading manufacturer of Stainless Steel Flanges in India. Among our top offerings in the Metal Market are ASME B16.47 201 Stainless Steel Flanges. Our diverse range comes in various sizes, configurations, and dimensions, all customizable to suit our customers’ requirements. Addressing the needs of diverse industrial sectors, we supply these products in tailored quantities and with personalized options. ANSI B16.5 Stainless Steel Flanges from Mcneil Instruments boast high strength, impeccable finish, and extended durability. Our product lineup encompasses formable and high-strength steels, including boron and weather-resistant variants, ensuring reliability across demanding applications.
Flanges act in conjunction with many appliances. Without the same, many appliances in our house will lose their functioning. As the best Flanges Manufacturers in India, we at Mcneil strive to provide you with only the best products. Owning up to the reputation of being the best Flanges Manufacturers, the flanges available at our site are of immaculate quality and will prove to be the best for you!
With great properties to our products, we have maintained our status as the best Flanges exporters in India. Being the best Flanges Manufacturers in India and Flanges Exporters in India, we always come through with our customers’ needs.
The products we sell at our outlet are of high quality and can provide you with the perfect appliances installed in your household. This makes us one of the best Flanges Suppliers in India and Flanges Manufacturers in India.
The Products That Make Us The Best Flanges Suppliers
A lot of components go into the making of a complete house or any appliance. Many times one of such components is a flange. With our wide range of flanges as products, we make things much easier for you!
The products that will make your life easier are available here at affordable prices. Some of those products are given here. You can check them out for the quality check.
KOC Approved Flanges Stockist
This product is one of our leading ones. The quality of this product can be assured by the approval of the KOC that it contains. Our team has worked hard to make this product with the utmost quality ingrained in the same.
Majorly, this product is used by several industries. Some of them include paper companies, oil and gas companies, pipelines, boilers, nuclear power plants, chemical refineries, and high-pressure appliances. The KOC approval makes it trustable, and you can rely on this product, as a result.
Saudi Aramco Approved Flanges Stockist
With this product, our team at Mcneil has worked hard to create the same. This is because our team aims to provide the customers with greater quality. Validating the same quality, Saudi Aramco has approved this product.
There are many purposes for which this product can be used. Some of them are the usage in boilers, food processors, water pipelines, pulp companies, and many more. These flanges will only improve the functioning of your house, and their quality cannot be questioned.
Petro Rabigh Approved Flanges Stockist
We have been the leading manufacturer of Petro Rabigh Approved Flanges. The quality of this product automatically increases its efficiency and the professionals at McNeil aim to work harder to provide the customers with the best experiences.
This product has been used for many reasons, which are oil companies, gas companies, pulp companies, heat exchanges, nuclear power plants, pipelines, water pipelines, and many others. The quality and durability of this product are great, and that is why it has been the choice of many customers.
Qatar Gas Approved Flanges Stockist
Flange Approved by Qatar Gas, this Flange is one of our best products and has been supplied daily. Its high demand has been because of its superior quality, strength, design, and resistance to corrosion.
This product has been used in many industries. It has a very compact design and works as a great operator. Make a wise choice then by choosing this product.
Mcneil Instruments is dedicated to fulfilling the requirements of various industries. In order to fulfill industrial demands effectively, we produce Stainless Steel ANSI B16.5 Flanges with enhanced features and utility. Our manufacturing process includes rigorous destructive and non-destructive inspections to ensure consistency and compliance with all standards. As the leading Flanges suppliers in India and Flanges Exporters in India, we offer a wide range of flanges including SMO 254 Flanges, Super Duplex Steel F55 Flanges, Super Duplex Steel F53 Flanges, Super Duplex Steel 2507 Flanges, Super Duplex Steel 32760 Flanges, Super Duplex Steel 32750 Flanges, Duplex Steel F60 Flanges, Duplex Steel F51 Flanges, Duplex Steel 2205 Flanges, Duplex Steel 31803 Flanges, and more.
Common Flange Types and Characteristics
Flanges come in multiple types, each suited to different applications. Choosing the right flange type can help ensure reliable operation, long service life, and cost-efficiency. Here’s a detailed look at the most commonly used flange types:
| Flange Type | Description | Best Use Case |
| Threaded Flanges | Also known as screwed flanges, these flanges have a thread inside the flange bore which fits with a matching male thread on the pipe or fitting. No welding is necessary in many applications, making installation easier. | Non-welded connections, ideal for small-diameter, low-pressure applications. |
| Socket-Weld Flanges | Ideal for small-diameter pipes in low-temperature and low-pressure situations, socket-weld flanges connect by placing the pipe into the flange and securing it with a single multi-pass fillet weld. This design is easier to install than other welded flanges. | Low-temperature, low-pressure environments with small pipes. |
| Slip-on Flanges | Widely used and available in a large range of sizes, these flanges are attached by slipping over the pipe’s outer diameter and securing with fillet welds on both sides. | Systems with higher flow rates or larger pipes that require secure welding. |
| Lap Joint Flanges | With a two-piece design, this type requires butt welding the stub end to the pipe, using a backing flange for the connection. This allows easy removal, making them ideal for limited space and frequent dismantling. | Compact spaces or systems needing regular maintenance. |
| Weld Neck Flanges | Known for their strength and reliability, weld neck flanges are connected with butt welds and work well under high pressure and high temperature. They are ideal for complex systems with repeated bending and movement. | Process piping and high-stress, high-pressure systems. |
| Blind Flanges | Used to terminate or isolate a piping system, these flanges are boltable blank discs. Combined with the correct gaskets, they create a secure seal that is easy to remove when necessary. | Systems needing isolation or termination without leakage. |
| Specialty Flanges | Designed for specific applications, these include nipo flanges, weld flanges, expanding flanges, orifice, long weld neck, and reducing flanges. | Unique or highly specialized environments requiring custom fittings. |
Making the Connection: Flange Facing Types
When designing the ideal flange for your piping system, the type of face on the flange is just as important as its design. The face type affects the gasket needed and the seal quality, influencing the performance and lifespan of your flanges.
Here are some common flange face types:
- Flat Face (FF): These flanges have a flat, even surface and use a full face gasket that covers most of the flange surface.
- Raised Face (RF): These flanges have a small, raised section around the bore and use an inside bore circle gasket.
- Ring Joint Face (RTJ): Ideal for high-pressure and high-temperature applications, these flanges have a groove that holds a metal gasket to ensure a tight seal.
- Tongue and Groove (T&G): These flanges have matching grooves and raised sections that help align the flanges during installation and provide a space for gasket adhesive.
- Male & Female (M&F): Similar to T&G flanges, these use matching grooves and raised sections to hold the gasket in place. The gasket sits on the female face, offering more accurate placement and more gasket material options.
Flange faces also come in two finishes: serrated or smooth. Smooth faces are best for metallic gaskets, while serrated faces work well with soft material gaskets, creating a stronger seal.
Choosing the right face type from Mcneil Instruments a Flange Manufacturer, Supplier, and Exporter in India for finish ensures the optimal gasket for a reliable seal, enhancing the performance and longevity of your piping system.
Key Features of Flanges
- Material: Commonly made from materials such as stainless steel, carbon steel, alloy steel, and cast iron, depending on the application and required durability.
- Shapes and Sizes: Available in various shapes (round, square, or rectangular) and sizes to fit different pipe dimensions and standards.
- Designs: Flanges come in different designs, including welding neck, slip-on, socket weld, lap joint, threaded, and blind flanges.
- Standards: Manufactured according to international standards such as ANSI/ASME, DIN, JIS, and EN to ensure compatibility and reliability.
At Mcneil Instruments, we are committed to delivering high-quality flanges that meet the rigorous demands of various industries. As one of the leading Flanges Manufacturers in India, our extensive product range ensures that you find the right solution for your specific requirements. Whether you need standard or custom-sized flanges, we have you covered. Our dedication to quality and customer satisfaction has made us one of the top Flanges Suppliers in India. Furthermore, our global reach and export capabilities position us as one of the premier Flanges Exporters in India. Choose Mcneil Instruments for reliable and durable flanges that keep your piping systems secure and efficient.
Applications of Flanges
- Oil and Gas: Essential in connecting pipelines, valves, and equipment in refineries and drilling operations.
- Petrochemical: Used in chemical processing plants to handle various fluids and gases.
- Water Treatment: Applied in water and wastewater treatment plants for easy maintenance and repair of pipelines.
- Power Generation: Utilized in power plants to connect high-pressure steam lines and other critical systems.
- HVAC Systems: Integral in heating, ventilation, and air conditioning systems for connecting ductwork and piping.
Flanges Specification
| Flanges Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
|---|---|
| Flanges Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Flanges Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Flanges |
| Flanges Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Flanges |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Flanges |
| Most common types of Flanges | Forged / Threaded / Screwed / Plate |
| Flanges Manufacturers in india | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. Flanges: -BS Flanges, EN Flanges, API 6A Flanges, ANSI Flanges, ASME Flanges, DIN Flanges, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
|
| Flanges Uses & application |
|
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production technique |
|
| JIS Flanges | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Flanges |
| UNI Flanges | 6Bar 10Bar 16Bar 25Bar 40Bar Flanges |
| EN Flanges | 6Bar 10Bar 16Bar 25Bar 40Bar Flanges |
| Connect Type/ 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, Groove |
| Flanges Special design | As per your drawing AS, ANSI, BS, DIN and JIS |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Origin | Indian / West Europe / Japan / USA / Korean |
| Export to | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc |
Packing And Documentation of Instrumentation Fittings
At Mcneil Instruments, we ensure that our flanges are carefully packed to prevent any damage during transit. Depending on the mode of transport, our flanges are packed in specially branded carton boxes or wooden crate boxes. Each flange is wrapped in a protective thin plastic layer, with beveled ends secured by plastic caps. Socket weld ends are also protected with caps to safeguard the ends and threads. We place great importance on packing and packaging to ensure that our flanges reach customers in the same condition as they were manufactured.
Each shipment comes with essential export documents, including a commercial invoice, packing list, test reports, HS code, certificate of origin verified by the chamber of commerce, fumigation certificate, warranty letter, and base material certificates. We guarantee that our flanges meet the specifications outlined in the purchase order and confirm this in the material test certificate.
We also offer free samples in stainless steel and carbon steel upon request to help customers assess the quality and finish of our flanges. Photos can be provided upon request.
Flanges Suppliers in India and Flanges Exporters in India
Mcneil Instruments stands as a prominent Flanges Supplier and Exporters across India, UAE, Bahrain, Italy, Indonesia, Malaysia, United States, China, Brazil, Nigeria, Kuwait, Dubai, Iran, Germany, UK, Canada, Russia, Australia, Sri Lanka, Vietnam, Turkey, New Zealand, South Africa, Kazakhstan, Saudi Arabia key urban centers. Leading as India’s premier supplier and exporters of Flanges, Mcneil Instruments ensures widespread distribution of its products throughout the nation.
Get in touch with Mcneil: the best flange manufacturers!
Choosing the right flange type and materials can make a significant difference in system performance, maintenance, and safety. Consider Mcneil Instruments for high-quality, durable flanges engineered to meet the stringent requirements of your industrial applications.
At Mcneil, we focus on the goal of making our customers satisfied. The products that we sell are of a higher quality, which allows the buyers to heave a sigh of relief, as these products will ensure your safety. That is why choosing our products is a smart choice on the end of our customers.
Upcoming Approved Flanges
- IBR Approved Flanges
- DNV Approved Flanges
- PED Approved Flanges
- FM approved flanges
- WRAS approved flanges
Tags: Flanges Manufacturers in India, Flanges suppliers in India, Flanges Manufacturers, flanges manufacturing companies in India, Flanges Exporters in India, Flanges Suppliers, Flanges Manufacturers in India, Flanges Exporters
Class 150 Flange Weight Weight Chart
NOMINAL SIZE DIMENSIONS WEIGHT (KG) NPS
(Inches) DN (mm) FLANGE
MM FLANGE
THICKNESS SOW
SW WN BLIND 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 24 600 812.8 47.8 86.9 115 185.0
Class 300 Flanges to ASME B 16.5 Weight Chart
NOMINAL SIZE DIMENSIONS WEIGHT (KG) NPS
(Inches) DN (mm) FLANGE
OD
A
MM FLANGE
THICKNESS
D
MM SOW
SW WN BLIND 1/2 15 95.3 14.2 0.6 0.8 0.6 3/4 20 117.3 15.7 1.1 1.3 1.1 1 25 124 17.5 1.4 1.5 1.4 1 1/4 32 133.4 19.1 1.7 2.0 1.8 1 1/2 40 155.5 20.6 2.5 2.9 2.7 2 50 165.1 22.4 2.9 3.4 3.2 2 1/2 65 190.5 25.4 4.3 5.2 4.9 3 80 215.9 28.4 5.9 6.9 6.8 3 1/2 90 228.6 30.2 7.3 8.7 8.7 4 100 254 31.8 9.6 11.2 11.5 5 125 279.4 35.1 12.3 15.1 15.6 6 150 317.5 36.6 15.6 19.1 20.9 8 200 381 41.1 24.2 29.9 34.3 10 250 444.5 47.6 34.1 42.7 53.3 12 300 520.7 50.8 49.8 61.8 78.8 14 350 584.2 53.8 69.9 85.8 105.0 16 400 647.7 57.2 88.1 106.0 137.0 18 450 711.2 60.5 109.0 131.0 175.0 20 500 774.7 63.5 134.0 158.0 221.0 24 600 914.4 70.0 201.0 230.0 339.0
Class 600 Flanges to ASME B 16.5 Weight Chart
NOMINAL SIZE DIMENSIONS WEIGHT (KG) NPS
(Inches) DN (mm) FLANGE
OD
A
MM FLANGE
THICKNESS
D
MM SOW
SW WN BLIND 1/2 15 95.3 14.2 0.7 0.9 0.8 3/4 20 117.3 15.7 1.3 1.5 1.3 1 25 124.0 17.5 1.5 1.8 1.6 1 1/4 32 133.4 20.6 2 2.5 2.2 1 1/2 40 155.4 22.4 3 3.5 3.3 2 50 165.1 25.4 3.6 4.4 4.2 2 1/2 65 190.5 28.4 5.3 6.4 6.1 3 80 209.6 31.8 7 8.5 8.4 3 1/2 90 228.6 35.1 8.8 10.7 11 4 100 273.1 38.1 14.5 17.4 17.3 5 125 330.2 44.5 24.4 29.2 29.4 6 150 355.6 47.8 28.7 34.9 36.1 8 200 419.1 55.6 43.4 53.9 58.9 10 250 508 63.5 70.3 86.5 97.5 12 300 558.8 66.5 84.2 103.0 124 14 350 603.3 69.9 98.7 122.0 151 16 400 685.8 76.2 142.0 170.0 214 18 450 743 82.6 173.0 204.0 272 20 500 812.8 88.9 220.0 254.0 349.0 24 600 939.8 101.6 312.0 358.0 533.0
Class 900 Flanges to ASME B 16.5 Weight Chart
NOMINAL SIZE DIMENSIONS WEIGHT (KG) NPS
(Inches) DN (mm) FLANGE
OD
A
MM FLANGE
THICKNESS
D
MM SOW
SW WN BLIND 1/2 15 120.7 22.4 1.8 1.9 1.8 3/4 20 130 25.4 2.4 2.6 2.4 1 25 149.4 28.4 3.6 3.7 3.6 1 1/4 32 158.8 28.4 4 4.3 4.1 1 1/2 40 177.8 31.8 5.5 5.9 5.8 2 50 215.9 38.1 10.2 10.8 10 2 1/2 65 244.3 41.1 13.9 15 14 3 80 241.3 38.1 11.6 13.7 13.1 4 100 292.1 44.5 19.7 22.5 26.9 5 125 349.3 50.8 31.9 37.4 36.5 6 150 381 55.6 41.1 47.7 47.4 8 200 469.9 63.5 70.7 81.3 82.5 10 250 546.1 69.9 101.0 119 122.0 12 300 609.6 79.2 133.0 157.0 173.0 14 350 641.4 85.6 153.0 180.0 206.0 16 400 704.9 88.9 185.0 217.0 259.0 18 450 787.4 101.6 258.0 292.0 367.0 20 500 857.3 108.0 317.0 362.0 463.0 24 600 1041.4 139.7 606.0 665.0 876.0
Class 1500 Flanges to ASME B 16.5 Weight Chart
NOMINAL SIZE DIMENSIONS WEIGHT (KG) NPS
(Inches) DN (mm) FLANGE
OD
A
MM FLANGE
THICKNESS
D
MM SOW
SW WN BLIND 1/2 15 120.7 22.4 1.8 1.9 1.8 3/4 20 130 25.4 2.4 2.6 2.4 1 25 149.4 28.4 3.6 3.7 3.6 1 1/4 32 158.8 28.4 4 4.3 4.1 1 1/2 40 177.8 31.8 5.5 5.9 5.8 2 50 215.9 38.1 10.2 10.8 10.1 2 1/2 65 244.3 41.1 13.9 15 14 3 80 266.7 47.8 19.9 19.1 4 100 311.2 53.8 29.9 29.9 5 125 374.7 73.2 55.4 58.4 6 150 393.7 82.6 68.4 71.8 8 200 482.6 91.9 117 122 10 250 584.2 108 194.0 210.0 12 300 673.1 124 288.0 316.0 14 350 749.3 133.4 380.0 420 16 400 825.5 146.1 485.0 558.0 18 450 914.4 162.1 644.0 760.0 20 500 984.3 177.8 775.0 965.0 24 600 1168.4 203.2 1232.0 1558.0
Weight Chart of Class 2500 Flanges to ASME B 16.5
NOMINAL SIZE DIMENSIONS WEIGHT (KG) NPS
(Inches) DN (mm) FLANGE
OD
A
MM FLANGE
THICKNESS
D
MM WN BLIND 1/2 15 133.4 30.2 3.1 3.0 3/4 20 139.7 31.8 3.7 3.5 1 25 158.8 35.1 5.2 5.0 1 1/4 32 184.2 38.1 7.7 7.4 1 1/2 40 203.2 44.5 10.9 10.4 2 50 235 50.8 16.2 15.6 2 1/2 65 266.7 57.2 23.7 22.6 3 80 304.8 66.5 36.2 34.8 4 100 355.6 76.2 55.3 53.9 5 125 419.1 91.9 92.5 90.8 6 150 482.6 108 143.0 141 8 200 552.5 127 215.0 214 10 250 673.1 165.1 406.0 411.0 12 300 762 184.2 572.0 592.0
Flange Weights by Pressure Class and Size in mm kg
Pipe Size (inch) 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
Flange Standard Specification
- Dimensions: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
- Size: 1/2″ (15 NB) to 48″ (1200NB)
- Grades- : 300, 301, 301L, 303, 304, 304L, 304H, 310, 310S, 310H, 310, 316L, 316H, 321, 321H, 347, 409, 410, 416, 430, 904L
- Special Grades: LF 1, LF 2 F 51, F91.
- Class:150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
- DIN:DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636,DIN 2637, DIN 2638, DIN 2673
- BS: BS 4504 , BS 4504, BS 1560, BS 10
- PN: PN6, PN10, PN16, PN25, PN40
- JIS: 5K, 10K, 15 K
- DUPLEX:2205, 31803
- SUPER DUPLEX:F53, F55, F255, 32550
- HASTELLOY: C276, C22
- MONEL:400, K-500
- INCONEL: 600, 625, 718, 800, 825, 850
- CUPRO NICKEL: 90-10, 70-30, 80-20, 60-40, 75-25.
| NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
|---|---|---|---|---|---|---|
| NPS (Inches) | DN (mm) | FLANGE MM | FLANGE THICKNESS | SOW SW | WN | BLIND |
| 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 |
| 24 | 600 | 812.8 | 47.8 | 86.9 | 115 | 185.0 |
| NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
|---|---|---|---|---|---|---|
| NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | SOW SW | WN | BLIND |
| 1/2 | 15 | 95.3 | 14.2 | 0.6 | 0.8 | 0.6 |
| 3/4 | 20 | 117.3 | 15.7 | 1.1 | 1.3 | 1.1 |
| 1 | 25 | 124 | 17.5 | 1.4 | 1.5 | 1.4 |
| 1 1/4 | 32 | 133.4 | 19.1 | 1.7 | 2.0 | 1.8 |
| 1 1/2 | 40 | 155.5 | 20.6 | 2.5 | 2.9 | 2.7 |
| 2 | 50 | 165.1 | 22.4 | 2.9 | 3.4 | 3.2 |
| 2 1/2 | 65 | 190.5 | 25.4 | 4.3 | 5.2 | 4.9 |
| 3 | 80 | 215.9 | 28.4 | 5.9 | 6.9 | 6.8 |
| 3 1/2 | 90 | 228.6 | 30.2 | 7.3 | 8.7 | 8.7 |
| 4 | 100 | 254 | 31.8 | 9.6 | 11.2 | 11.5 |
| 5 | 125 | 279.4 | 35.1 | 12.3 | 15.1 | 15.6 |
| 6 | 150 | 317.5 | 36.6 | 15.6 | 19.1 | 20.9 |
| 8 | 200 | 381 | 41.1 | 24.2 | 29.9 | 34.3 |
| 10 | 250 | 444.5 | 47.6 | 34.1 | 42.7 | 53.3 |
| 12 | 300 | 520.7 | 50.8 | 49.8 | 61.8 | 78.8 |
| 14 | 350 | 584.2 | 53.8 | 69.9 | 85.8 | 105.0 |
| 16 | 400 | 647.7 | 57.2 | 88.1 | 106.0 | 137.0 |
| 18 | 450 | 711.2 | 60.5 | 109.0 | 131.0 | 175.0 |
| 20 | 500 | 774.7 | 63.5 | 134.0 | 158.0 | 221.0 |
| 24 | 600 | 914.4 | 70.0 | 201.0 | 230.0 | 339.0 |
| NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
|---|---|---|---|---|---|---|
| NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | SOW SW | WN | BLIND |
| 1/2 | 15 | 95.3 | 14.2 | 0.7 | 0.9 | 0.8 |
| 3/4 | 20 | 117.3 | 15.7 | 1.3 | 1.5 | 1.3 |
| 1 | 25 | 124.0 | 17.5 | 1.5 | 1.8 | 1.6 |
| 1 1/4 | 32 | 133.4 | 20.6 | 2 | 2.5 | 2.2 |
| 1 1/2 | 40 | 155.4 | 22.4 | 3 | 3.5 | 3.3 |
| 2 | 50 | 165.1 | 25.4 | 3.6 | 4.4 | 4.2 |
| 2 1/2 | 65 | 190.5 | 28.4 | 5.3 | 6.4 | 6.1 |
| 3 | 80 | 209.6 | 31.8 | 7 | 8.5 | 8.4 |
| 3 1/2 | 90 | 228.6 | 35.1 | 8.8 | 10.7 | 11 |
| 4 | 100 | 273.1 | 38.1 | 14.5 | 17.4 | 17.3 |
| 5 | 125 | 330.2 | 44.5 | 24.4 | 29.2 | 29.4 |
| 6 | 150 | 355.6 | 47.8 | 28.7 | 34.9 | 36.1 |
| 8 | 200 | 419.1 | 55.6 | 43.4 | 53.9 | 58.9 |
| 10 | 250 | 508 | 63.5 | 70.3 | 86.5 | 97.5 |
| 12 | 300 | 558.8 | 66.5 | 84.2 | 103.0 | 124 |
| 14 | 350 | 603.3 | 69.9 | 98.7 | 122.0 | 151 |
| 16 | 400 | 685.8 | 76.2 | 142.0 | 170.0 | 214 |
| 18 | 450 | 743 | 82.6 | 173.0 | 204.0 | 272 |
| 20 | 500 | 812.8 | 88.9 | 220.0 | 254.0 | 349.0 |
| 24 | 600 | 939.8 | 101.6 | 312.0 | 358.0 | 533.0 |
| NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
|---|---|---|---|---|---|---|
| NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | SOW SW | WN | BLIND |
| 1/2 | 15 | 120.7 | 22.4 | 1.8 | 1.9 | 1.8 |
| 3/4 | 20 | 130 | 25.4 | 2.4 | 2.6 | 2.4 |
| 1 | 25 | 149.4 | 28.4 | 3.6 | 3.7 | 3.6 |
| 1 1/4 | 32 | 158.8 | 28.4 | 4 | 4.3 | 4.1 |
| 1 1/2 | 40 | 177.8 | 31.8 | 5.5 | 5.9 | 5.8 |
| 2 | 50 | 215.9 | 38.1 | 10.2 | 10.8 | 10 |
| 2 1/2 | 65 | 244.3 | 41.1 | 13.9 | 15 | 14 |
| 3 | 80 | 241.3 | 38.1 | 11.6 | 13.7 | 13.1 |
| 4 | 100 | 292.1 | 44.5 | 19.7 | 22.5 | 26.9 |
| 5 | 125 | 349.3 | 50.8 | 31.9 | 37.4 | 36.5 |
| 6 | 150 | 381 | 55.6 | 41.1 | 47.7 | 47.4 |
| 8 | 200 | 469.9 | 63.5 | 70.7 | 81.3 | 82.5 |
| 10 | 250 | 546.1 | 69.9 | 101.0 | 119 | 122.0 |
| 12 | 300 | 609.6 | 79.2 | 133.0 | 157.0 | 173.0 |
| 14 | 350 | 641.4 | 85.6 | 153.0 | 180.0 | 206.0 |
| 16 | 400 | 704.9 | 88.9 | 185.0 | 217.0 | 259.0 |
| 18 | 450 | 787.4 | 101.6 | 258.0 | 292.0 | 367.0 |
| 20 | 500 | 857.3 | 108.0 | 317.0 | 362.0 | 463.0 |
| 24 | 600 | 1041.4 | 139.7 | 606.0 | 665.0 | 876.0 |
| NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
|---|---|---|---|---|---|---|
| NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | SOW SW | WN | BLIND |
| 1/2 | 15 | 120.7 | 22.4 | 1.8 | 1.9 | 1.8 |
| 3/4 | 20 | 130 | 25.4 | 2.4 | 2.6 | 2.4 |
| 1 | 25 | 149.4 | 28.4 | 3.6 | 3.7 | 3.6 |
| 1 1/4 | 32 | 158.8 | 28.4 | 4 | 4.3 | 4.1 |
| 1 1/2 | 40 | 177.8 | 31.8 | 5.5 | 5.9 | 5.8 |
| 2 | 50 | 215.9 | 38.1 | 10.2 | 10.8 | 10.1 |
| 2 1/2 | 65 | 244.3 | 41.1 | 13.9 | 15 | 14 |
| 3 | 80 | 266.7 | 47.8 | 19.9 | 19.1 | |
| 4 | 100 | 311.2 | 53.8 | 29.9 | 29.9 | |
| 5 | 125 | 374.7 | 73.2 | 55.4 | 58.4 | |
| 6 | 150 | 393.7 | 82.6 | 68.4 | 71.8 | |
| 8 | 200 | 482.6 | 91.9 | 117 | 122 | |
| 10 | 250 | 584.2 | 108 | 194.0 | 210.0 | |
| 12 | 300 | 673.1 | 124 | 288.0 | 316.0 | |
| 14 | 350 | 749.3 | 133.4 | 380.0 | 420 | |
| 16 | 400 | 825.5 | 146.1 | 485.0 | 558.0 | |
| 18 | 450 | 914.4 | 162.1 | 644.0 | 760.0 | |
| 20 | 500 | 984.3 | 177.8 | 775.0 | 965.0 | |
| 24 | 600 | 1168.4 | 203.2 | 1232.0 | 1558.0 | |
| NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | |||
|---|---|---|---|---|---|
| NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | WN | BLIND |
| 1/2 | 15 | 133.4 | 30.2 | 3.1 | 3.0 |
| 3/4 | 20 | 139.7 | 31.8 | 3.7 | 3.5 |
| 1 | 25 | 158.8 | 35.1 | 5.2 | 5.0 |
| 1 1/4 | 32 | 184.2 | 38.1 | 7.7 | 7.4 |
| 1 1/2 | 40 | 203.2 | 44.5 | 10.9 | 10.4 |
| 2 | 50 | 235 | 50.8 | 16.2 | 15.6 |
| 2 1/2 | 65 | 266.7 | 57.2 | 23.7 | 22.6 |
| 3 | 80 | 304.8 | 66.5 | 36.2 | 34.8 |
| 4 | 100 | 355.6 | 76.2 | 55.3 | 53.9 |
| 5 | 125 | 419.1 | 91.9 | 92.5 | 90.8 |
| 6 | 150 | 482.6 | 108 | 143.0 | 141 |
| 8 | 200 | 552.5 | 127 | 215.0 | 214 |
| 10 | 250 | 673.1 | 165.1 | 406.0 | 411.0 |
| 12 | 300 | 762 | 184.2 | 572.0 | 592.0 |
| Pipe Size (inch) | 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 |
Exploring Key Alloy Steel Flange Grades: P5, P9, P11, and P22
When it comes to high-temperature and high-pressure applications, certain alloy steel grades are particularly prominent. Let’s examine the characteristics of P5, P9, P11, and P22 flanges:
| Grade | Main Alloying Elements | Key Characteristics | Typical Applications |
| P5 | 5% Chromium, 0.5% Molybdenum | Excellent creep resistance, oxidation resistance, and corrosion resistance at high temperatures. | High-temperature service in refineries, chemical plants, and power generation. |
| P9 | 9% Chromium, 1% Molybdenum | Superior creep strength and oxidation resistance compared to P5, good thermal conductivity. | Advanced power generation, high-pressure steam lines, and high-temperature petrochemical processing. |
| P11 | 1.25% Chromium, 0.5% Molybdenum | Good high-temperature strength and creep resistance, enhanced resistance to graphitization. | Moderate to high-temperature service in power plants and petrochemical industries. |
| P22 | 2.25% Chromium, 1% Molybdenum | Excellent high-temperature strength, creep resistance, and resistance to hydrogen attack. | High-pressure and high-temperature service in power generation (boiler components) and petrochemical processing. |
Understanding these nuances is crucial when selecting the appropriate alloy steel flanges manufacturer or alloy flanges supplier in the USA or globally.
Mcneil Instrument: Your Trusted Partner for Alloy Steel Flanges
As a leading alloy flanges manufacturer in India, Mcneil Instrument is committed to providing high-quality alloy steel flanges that meet and exceed international standards. We cater to the demands of industries worldwide, including the USA, supplying to key industrial hubs like Chicago and Houston.
Our extensive range includes P5 flanges, P9 flanges, P11 flanges, and P22 flanges, manufactured with precision and rigorous quality control. We understand the critical nature of these components and ensure they offer:
- Compliance with ASTM and other relevant standards.
- Excellent material traceability.
- Comprehensive testing and certification.
- Reliable supply and export services to the USA and beyond.
Whether you are looking for a dependable alloy steel flanges supplier or an experienced alloy flanges exporter to Chicago, Houston, or any other location in the USA, Mcneil Instrument is your trusted partner.
Global Reach of Flanges with Mcneil Instruments
Mcneil Instruments is a reliable Flange supplier in the USA market, supplying top-grade flanges to key regions like Houston, Chicago, and Colorado. We export our products to over 80 countries, ensuring global strength and durability.
Backed by a strong distribution network and rigorous quality checks, we provide timely delivery and consistent service across the U.S. Mcneil Instruments is the trusted name for industrial flange solutions worldwide.
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Frequently Asked Question’s
What are the flange selecting criteria?
Depending on the piping substance and the needs of the application, a variety of materials can be used to make pipe flanges. Environmental corrosion, working temperature, flow pressure, and economy all play a role in selection.
What is the ASME Code for flanges?
Since 1922, ASME has been describing piping safety. Pipe Flanges and Flanged Fittings, ASME B16. 5: metric/inch NPS 1/2 through NPS 24 The standard includes pipe flange and flanged fitting opening designation techniques, pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing.
What are the ISO standards for flanges?
The biggest tube that can be joined to an ISO flange is measured by its nominal I.D. (in, mm). There are 63, 80, 100, 160, 200, 250, 320, 400, 500, and 630 common sizes.
What is a flange used for?
A flange is used to connect pipes, valves, pumps, and other equipment in a piping system securely.
What are the types of flanges?
Common types include slip-on, weld neck, blind, socket weld, and threaded flanges.
Why are flanges important?
They allow easy assembly and disassembly for maintenance, inspection, and repairs.
What materials are flanges made of?
Flanges are commonly made of stainless steel, carbon steel, and alloy steel.
Where are flanges used?
Flanges are used in oil & gas, petrochemical, water treatment, and power industries.