Nipoflange Olet Fittings

Nipoflanges made from High Nickel Alloys like Inconel B366 are ideal for high-performance applications requiring excellent corrosion and heat resistance. These fittings are commonly used in chemical plants, offshore rigs, and power generation systems. With precision forging and tight dimensional tolerance, Inconel Nipoflanges ensure leak-proof and durable branch connections. Available in socketweld and threaded types, they conform to ASTM and ASME standards. Sizes range from 1/8″ to 24″, with pressure classes up to 9000#. These nickel-based Nipoflanges are highly resistant to oxidation and pitting in harsh environments, making them the preferred choice for critical systems. Exported widely from India, these products meet both national and international quality certifications.

We offer a wide range of stainless steel Nipoflange fittings in ASTM A182 grades like F304, F304L, F316, F316Ti, F321, and F347. These branch connection fittings are known for their strength, corrosion resistance, and durability. Ideal for connecting small-bore pipes to headers, they come in various end types—socketweld, threaded, and butt weld. Commonly used in oil & gas, petrochemical, and food-grade processing units, these SS Nipoflanges are available in schedules from Sch 10 to Sch XXS. They are forged using CNC and heat-treated for superior performance. Sizes range from 1/8″ to 8″ outlet with run pipes up to 60″. Global clients rely on these for their quality and precision.

Monel 400 and Nickel 200 Nipoflanges are engineered for use in marine and chemical processing industries due to their superior resistance to seawater, acids, and alkalis. These fittings are crafted from top-grade UNS N04400 and N02200 forgings, ensuring longevity in extreme conditions. Monel Nipoflanges offer excellent mechanical strength and welding capability, while Nickel 200 ensures good thermal and electrical conductivity. Available in socketweld and threaded types, they meet global standards including ASTM B366 and B564. With wide availability in India and quick export options to regions like Kuwait, Nigeria, and South Africa, these fittings are a reliable solution for high-pressure applications.

Duplex and Super Duplex Nipoflanges (UNS S31803, S32205, S32750, S32760) are known for their high strength and exceptional resistance to chloride stress corrosion cracking. These are widely used in offshore drilling, chemical processing, and water treatment systems. Manufactured under ASTM A815 and B366 standards, they come in a variety of pressure classes including 3000#, 6000#, and 9000#. These Nipoflanges are offered in all standard end connections and wall thicknesses including Sch 40, Sch 80, and Sch XXS. Their superior metallurgical structure provides excellent fatigue strength, making them a long-lasting solution for harsh and high-stress environments.

Cupro Nickel Nipoflanges in 90/10 (C70600) and 70/30 (C71500) grades are widely used in marine applications, desalination plants, and offshore platforms due to their excellent corrosion resistance in saltwater environments. These fittings offer superior strength, weldability, and thermal conductivity. Manufactured under ASTM B151 and B466 standards, they come in socketweld and threaded options, suitable for branch connection solutions in pipelines. Available in various pressure ratings and schedules, these Nipoflanges meet both industrial and naval specifications. Their durability and resistance to biofouling make them the top choice for industries operating in coastal or underwater environments.

Key Features of Nipoflange Fittings

Available in Socketweld, Threaded, and Butt Weld types
Sizes range from 1/8" outlet to 8", with run pipe up to 60"
Pressure ratings include 1500#, 3000#, 6000#, and 9000#
Compatible with pipe schedules from Sch 10 to Sch XXS
Manufactured in materials like Inconel, Monel, Hastelloy, Stainless Steel, Duplex, and Titanium
Suitable for use in oil & gas, marine, chemical, and industrial applications

Our Coupolet Outlet fittings to Conforms to NACE MR0175/ISO 15156.

Coupolet Weight Chart

ANSI B366 Coupolet Fittings Specification:-

ANSI B366 Nipoflange Fittings Specification:-

Size: 1/8″ NB to 24″ NB. (Socket weld & Threaded)

Class: 1500#, 3000#, 6000#, 9000#

Standards: ASTM / ASME SB366, SB363, SB61, SB61, SB62, SB151, SB152, SB564, SB160, SB472, A815, A182, A105, A350, A694

Specification: ASME/ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 Etc…

Process: Free Forging, Plate cutting, Forged, Threading, Heat treatment Etc..

Outlet: 1/8″ to 8″ | Run Pipe: 1/8″ to 60″

Shape: Equal Shape Nipoflange

Schedule: Sch.10s, Sch.40s, Sch.80, Sch.STD, Sch.XS, Sch.160, Sch.XXS, Clients Require.

Type: Forged Olets, Socket Weld Olets, Butt Welding Olets & Threaded Olets

Form: Weldolet, Sockolet, Threadolet, Letrolet, Insert Weldolet, Elbolet, Nipolet, Sweepolet, Brazolet, Coupolet, Nipoflange, Flangeolet,

Flexolet: Threaded Flexolet , Socketweld Flexolet & Butt Weld Flexolet.

Material Grades & Inspection

1. Material Test Certificates

Materials are provided with EN 10204 3.1 / 3.2 certification.

2. Inspection Reports

We provide reports like NACE, HIC, Microstructure, IGC, Ultrasonic, etc.

Raw Material Test Report	Radiography Test Report	Material Traceability Report
Mechanical Testing like Tensile, Elongation	Material Identification Report	Flattening Test Report
Macro, Micro Test Report	IGC Test Report	Ultrasonic Test Report
Hardness Test Report	PMI Test Report	Third Party Inspection Report

Stainless Steel Forgings/Fittings:

Stainless Steel ASTM A182 F304 / F304L / F309 / F310 / F316 / F316L Forgings

Stainless Steel ASTM A182 F317 / F321 / F347 / F904L Forgings

Stainless Steel ASTM A182 F44 / F51 / F53 / F55 Forgings

Stainless Steel ASTM A182 F304H / F316H Forgings

Stainless Steel ASTM A182 F310H / F316Ti Forgings

Alloy Steel Forgings/Fittings:

Alloy Steel ASTM A182 F1 Forgings

Alloy Steel ASTM A182 F5 Forgings

Alloy Steel ASTM A182 F9 Forgings

Alloy Steel ASTM A182 F11 Forgings

Alloy Steel ASTM A182 F12 Forgings

Alloy Steel ASTM A182 F22 / F91 Forgings

Carbon Steel Forgings/Fittings:

ASTM A105 Forgings

ASTM A350 LF2 Forgings

Duplex & Super Duplex Steel Forgings/Fittings:

Duplex Steel ASTM A182 F51 (UNS S31803) Forgings

Duplex Steel ASTM A182 F60 (UNS S32205) Forgings

Super Duplex ASTM A182 F53 (UNS S32750) Forgings

Super Duplex ASTM A182 F55 (UNS S32760) Forgings

ASTM A182 UNS S32760 Forgings

High Nickel Alloys Forgings/Fittings:

Nickel Alloys ASTM B564 UNS N04400 (Monel 400)

Nickel Alloys ASTM B564 UNS N06600 (Inconel 600)

Nickel Alloys ASTM B564 UNS N08800 (Incoloy 800)

Nickel Alloys ASTM B564 UNS N08825 (Incoloy 825)

Nickel Alloys ASTM B564 UNS N06625 (Inconel 625)

Nickel Alloys ASTM B564 UNS N07718 (Inconel 718)

Copper Nickel Forgings/Fittings:

Copper Nickel ASTM B467 UNS C70600 (Cu-Ni 90/10)

Copper Nickel ASTM B467 UNS C71500 (Cu-Ni 70/30)

Copper Nickel ASTM B467 UNS C70600 / C71500

Hastelloy & Incoloy Nipoflange Fittings

Hastelloy C22, C276 and Incoloy 800/825 Nipoflanges are engineered for extreme environments involving high temperatures and aggressive chemicals. These high-performance alloys provide outstanding resistance to oxidation, pitting, and stress corrosion. Commonly used in fertilizer plants, nuclear reactors, and chemical industries, these fittings are manufactured as per ASTM B366 and B564 standards. They are available in various pressure classes and end types such as socketweld, butt weld, and threaded. Their durability, precision finish, and global availability make them ideal for heavy-duty applications in both onshore and offshore environments.

Titanium, Carbon Steel & Alloy Steel Nipoflange Options

Titanium Grade 2, Carbon Steel A105, and Alloy Steel (F11, F22) Nipoflanges are designed for high-strength and high-temperature applications. Titanium offers excellent corrosion resistance with lightweight benefits, making it ideal for aerospace and medical industries. Carbon and Alloy Steel Nipoflanges are widely used in power plants, oil refineries, and structural piping. These fittings are manufactured under ASTM A182, A105, and A350 standards and are available in socketweld, threaded, and butt weld types. With full compliance to ASME B16.11 and MSS SP-97, these Nipoflanges are a cost-effective and durable solution for industrial branch connections.

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CNC Machining

CNC Machining

CNC Machining

CNC Machining