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Fittings

Rivulet Industries LLP. is a leading Manufacturer and Exporter of high-performance Butt Weld and Forged Fittings, designed to meet the most demanding industrial applications. Operating out of Mumbai, India, we specialize in producing precision fittings that ensure leak-proof connections, structural integrity, and long-term reliability across a variety of critical environments.

Our product range includes Seamless, Welded, and Fabricated Butt Weld Fittings as well as Forged Socket Weld and Threaded (NPT/PT) Fittings, manufactured in compliance with international standards such as ANSI/ASME B16.9, B16.11, MSS-SP-43, MSS-SP-79 and more. We offer fittings in sizes ranging from 1/8" NB to 48" and thicknesses from 20 SWG to Schedule XXS, tailored to fit varied project specifications.

Our fittings are crafted using premium-grade materials including Duplex & Super Duplex Steel, Nickel Alloys (400, K500, 625, 718, 825, 20, C276), and Exotic Alloys (A286, X750, 218, 254, 904L, XM-19). These materials ensure exceptional resistance to corrosion, high temperature, and mechanical stress, making them ideal for use in Oil & Gas, Petrochemical, Power, Marine, and Process Industries.

Available in a wide range of Schedules (Sch 5 to Sch XXS), shapes, and end connections, our fittings support reliable flow control and secure pipe joining for both low- and high-pressure systems. Every product undergoes strict quality inspection and testing procedures to maintain dimensional accuracy and durability under harsh service conditions.

Whether you require standard or custom fittings, we offer flexible manufacturing options to meet project-specific needs. Our commitment to engineering precision, timely delivery, and customer satisfaction positions us as a preferred partner for clients worldwide.

Available Grades of Fittingss

Alloy Type Available Grades
Duplex Steel Alloy-2205, Alloy-2304, Alloy-329
Super Duplex Steel Alloy-2507 / F53, Alloy-2507 / F55, Alloy-255
Nickel Alloys Alloy-400, Alloy-K500, Alloy-625, Alloy-718, Alloy-825, Alloy-20, Alloy-C276
Exotic Alloys Alloy-A286, Alloy-X750, Alloy-218, Alloy-254, SS-904L, XM-19

Dimensional Standards of Fittings

Fitting Type Standards Size Range Thickness Schedules Connection Type
Butt Weld Fittings ANSI / ASME B16.9, B16.25, B16.28
MSS-SP-43, MSS-SP-48, MSS-SP-59		 Seamless: 1/2" - 10"
Welded: 1/2" - 48"		 20 SWG to 10 SWG Sch 5 to Sch XXS Seamless / Welded / Fabricated
Forged Fittings ANSI / ASME B16.11
MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799		 1/8" NB to 4" NB As per Standard Sch 10, Sch 40, Sch 80, etc. Socket Weld / Screwed (NPT or PT)

Types of Fittings

Buttweld Fittings

Buttweld fittings are pipe fittings that are welded directly to pipes, providing a strong, leak-proof, and permanent connection. These fittings are commonly used in high-pressure and high-temperature environments where strength and reliability are critical. Manufactured from seamless or welded pipes, buttweld fittings are ideal for applications in industries such as oil & gas, petrochemicals, power plants, and shipbuilding. They ensure smooth flow inside the piping system and allow for easy modification or expansion.

Buttweld Fittings
Key Features:
  • Provides strong, permanent, and leak-proof welded connections.
  • Manufactured from seamless or welded pipes for enhanced strength and dimensional accuracy.
  • Suitable for high-pressure, high-temperature, and corrosive environments.
  • Smooth inner surface minimizes turbulence and pressure drop.
  • Widely used in oil & gas, petrochemical, power, and marine industries.
Types of Buttweld Fittings:
  • Elbow (90°, 45°, Long Radius, Short Radius)
  • Tee (Equal Tee, Reducing Tee)
  • Reducer (Concentric, Eccentric)
  • Cap
  • Stub End
  • Cross
  • Bends (Custom Bends, Return Bends)


Forged Fittings

Forged fittings are components used to connect pipes, valves, pumps, and other equipment in piping systems. They are manufactured through a forging process that enhances the mechanical properties and durability of the material. Available in socket weld and threaded (screwed) types, forged fittings are ideal for small-diameter, high-pressure applications. These fittings are widely used in oil & gas, petrochemical, chemical, power generation, and other critical industries for their high strength and reliable performance.

Forged Fittings
Key Features:
  • Manufactured through hot forging, ensuring high strength and excellent durability.
  • Available in socket weld and threaded (NPT/PT) connections for ease of installation.
  • Designed for high-pressure, high-temperature, and corrosive environments.
  • Suitable for small bore piping systems (up to 4” NB).
  • Widely used in oil & gas, chemical processing, and power generation sectors.
Types of Forged Fittings:
  • Elbow (45°, 90° – Socket Weld & Threaded)
  • Tee (Socket Weld & Threaded)
  • Coupling (Full & Half)
  • Union
  • Cap
  • Plug
  • Bushing
  • Swage Nipple & Barrel Nipple