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Threaded Flanges Exporters in Mumbai

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About The Product

It is similar to a slip-on flange or a socket weld flange, equipped with a tapered thread (screw) in the flange hole and attached to the pipe with a corresponding external thread.

Threaded pipe flanges manufacturers are available in a variety of dimensions, but threaded connections are most often used on small diameter pipelines.

On the other hand, thin-walled pipe systems do not have space for threads and are therefore not compatible.

Grades in Threaded Flanges

⇒ Stainless Steel F304 Flanges

⇒ Stainless Steel 304L Flanges

⇒ Stainless Steel 304H Flanges

⇒ Stainless Steel Type 316 Flanges

⇒ Stainless Steel 316L Flanges

⇒ Stainless Steel 317 Flanges

⇒ Stainless Steel 317L Flanges

⇒ Stainless Steel 321 Gaskets

⇒ Stainless Steel 310 Flanges

⇒347 Stainless Steel Flanges

⇒ Type 904 Stainless Steel Flanges

⇒ Carbon Steel A105 Flanges

⇒ Carbon Steel A694 Flanges

⇒ Carbon Steel F42 Flanges

⇒ Carbon Steel Grade 46 Flanges

⇒ 52 Carbon Steel Flanges

⇒ Carbon Steel 56 flanges

⇒ Carbon steel 60 Flanges

⇒ Carbon Steel 65 Flanges

⇒ Carbon Steel 70 Flanges

⇒ ASTM A516 Grade 60/70 Flanges

⇒ F1 Alloy Steel Flanges

⇒ Alloy Steel FS Flanges

⇒ F9 Flanges

Alloy Steel F11 Flanges

⇒ Alloy steel F22 flanges

⇒ F91 Alloy Steel Flanges

⇒ Monel 400 Flanges

⇒ Monel K500 Flanges

⇒ Inconel Alloy 600 Flanges

⇒ Inconel Alloy 601 Flanges

⇒ Inconel Alloy 625 Flanges

⇒ Inconel Alloy 718 Flanges

⇒ Inconel alloy 725 flanges.

⇒ Hastelloy C22 Flanges

⇒ Hastelloy C276 Flanges

⇒ Hastelloy 82 Flanges

⇒ The nickel alloy UNS 2201 flanges

⇒ Nickel Alloy UNS 2200: 2

These are commonly paired with externally threaded pipes, finding applications across industries such as shipbuilding, power generation, petrochemicals, and more. Our threaded flanges boast comprehensive specifications, ranging from 1/2″ to 48″ in size, and adhere to ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, and other standards. Pressure ratings span Class 150 to Class 2500, and PN6 to PN64, offering flexibility for diverse project requirements. With materials including ASTM A105/A105N, A350 LF1/2, ASTM A182 stainless steel grades, and various alloy steels, our threaded flanges ensure reliability and durability in demanding environments.


Platinex Piping Solutions LLP stands out as a premier manufacturer and exporter of threaded flanges, adhering to ASME/ANSI B16.5 standards in India. Specializing in high-quality threaded or screwed flanges crafted from carbon, alloy, and stainless steel, our offerings cater to diverse industrial needs. Our threaded flanges facilitate seamless assembly in low-pressure piping systems without necessitating welding, ensuring efficient connections with pipes and equipment. Although welding around the joint is possible post-assembly, it’s not recommended for optimal performance. Renowned for their versatility, threaded flanges, also known as screwed flanges, feature threaded bores, enabling welding-free installation akin to slip-on flanges. 

Flange face types encompass Flate Face (FF), Raised Face (RF), and Ring Type Joint (RTJ), with surface treatments including anti-rust paint, zinc plating, and hot dip galvanization.

Additionally, we provide value-added services like CNC machining and customized flanges. The different types of threaded flanges are:

  • Plain Threaded Flanges
  • Female Threaded Flanges
  • Male Threaded Flanges

Uses of threaded flanges

A threaded flange that matches the external thread of the pipe is screwed into the hole. Threaded flanges are used for pipes with external threads. The use of these flanges is that they can be attached without welding.

  • Threaded flanges can be installed on pipes of various sizes without This is one of the main advantages that makes these flanges highly in demand.
  • They can be used in very high pressure applications where the necessary post-weld heat treatment is not possible, especially at or near ambient temperatures.
  • Ideal for small diameter piping
  • They are economical and time saving
  • This flange is suitable for use in applications where welding is

Flat threaded flanges seller are used in the heating industry Threaded pipe flanges are used in water supply systems ANSI B16.5 forged threaded flanges are used in power plants.

Threaded plate flanges are used in the paper and pulp industry Threaded flanges are used for general applications.

Steel threaded flanges are used in manufacturing industry Use of threaded flanges in the food industry.

Threaded flanges are used for structural pipes.

Thread Specifications: The threading process must comply with standard thread specifications, ensuring proper engagement with external threads on pipes and equipment. This typically involves adhering to standards such as NPT (National Pipe Thread) or BSP (British Standard Pipe).

Surface Finish: Manufacturers follow guidelines for surface finish as per standards like MSS SP44 to ensure smooth and uniform surfaces, reducing the risk of leaks and corrosion.

Heat Treatment: Depending on the material used, threaded flanges can undergo a heat treatment process to improve mechanical properties such as hardness and toughness. Testing and quality control: Rigorous testing during manufacturing includes dimensional testing, pressure testing, non-destructive testing (NDT) methods such as ultrasonic testing, and dye penetration testing to ensure that the flanges meet performance and quality standards. A standard testing protocol was followed.


ANSI B16.5 Threaded / Screwed Flanges Application

ASME B16.5 threaded flanges are known for their superior performance and are commonly designed for the following applications:

We offer a wide range of threaded flanges through our global warehouse network branch. These threaded flanges are used in a variety of industries, including: Stainless steel threaded flanges are used in oil and gas pipelines Threaded flanges are used in the chemical industry alloy steel threaded flange is used for piping

Manufacturing Standards

Material Selection: Manufacturers adhere to international standards such as ASTM (American Society for Testing and Materials) to select appropriate materials for threaded flanges. Common materials include carbon steel (e.g., ASTM A105/A105N), stainless steel (e.g., ASTM A182), and various alloy steels.

Dimensional Accuracy: Threaded flanges must meet precise dimensional requirements as per standards like ASME/ANSI B16.5 to ensure compatibility and interchangeability with pipes and fittings.



Platinex Piping Solutions LLP is a specialised manufacturer of threaded flanges & high quality ASME/ANSI/DIN standard threaded flanges or screwed flanges in India. We offer immediate delivery programs for standard size of carbon steel threaded flanges and stainless steel threaded flanges.
Threaded flanges are widely used in low pressure piping systems, as no welding is involved while connecting the flanges to pipes or other equipment. However, the flange may be welded around the joint after assembly, but it is not considered a satisfactory method of increasing its applications. Threaded flanges are also known as screwed flanges and are similar to slip-on flanges, but the bore is threaded to enable assembling without welding. Threaded pipe flanges are usually used with pipes that have external threads.

We offer threaded flanges pipe manufactured at our facility to companies in various industries including shipbuilding, power generation, petrochemical plants, oil refineries, waste water treatment plants, paper mills, pharmaceutical plants and turnkey projects among others.

threaded flanges


Size1/2″ (15 NB) to 48″ (1200NB)
StandardsANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure RatingsClass 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Threaded FlangesASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Threaded FlangesASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Threaded FlangesASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Threaded FlangesDuplex, Super Duplex, Nickel Alloys
Flange Face TypeFlate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface TreatmentAnti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value Added ServicesCNC Machining, Customised Flanges

Technical Information – Specifications, Dimensions Threaded/Screwed Flanges

  • ANSI/ASME B16.5 Threaded Flange/Screwed Flange 150lb
  • ANSI/ASME B16.5 Threaded Flange/Screwed Flange 300lb
  • ANSI-ASME B16.5 Threaded Flange, Screwed Flange 400lb
  • ANSI/ASME B16.5 Threaded Flange/Screwed Flange 600lb
  • ANSI/ASME B16.5 Threaded Flange/Screwed Flange 900lb
  • ANSI/ASME B16.5 Threaded Flange/Screwed Flange 1500lb
  • ANSI/ASME B16.5 Threaded Flange/Screwed Flange 2500lb

Why platinex for the product

Certainly! Platinex Piping Solutions LLP not only offers specialization and high-quality standards but also provides a comprehensive range of threaded flange materials to suit diverse industrial needs. Their immediate delivery programs ensure timely supply, while customization options and value-added services cater to specific project requirements. With a proven track record and strong reputation across various industries, Platinex stands as a trusted partner for reliable and efficient threaded flange solutions.