Built on Experience.
Forged with Precision.
Since 1996, Oklahoma Specialties, Inc. (OSI) has specialized in manufacturing hot-forged transition nozzles, commonly known as swages, for air-cooled heat exchanger headers. Our nozzles are designed to provide a smooth, secure connection between varying pipe sizes and configurations, helping maintain efficient flow and reliable performance.
Our products are used in data centers, air-cooled heat exchangers, power generation, pipeline systems, chemical and petroleum processing, fired heaters, boilers, process piping, and pressure vessel applications. Built for demanding industrial environments, our transition nozzles are manufactured to meet specific requirements for strength, durability, and dimensional accuracy.
Proudly manufactured in the USA, OSI transition nozzles are available in a variety of materials, sizes, and configurations to meet customer specifications and tolerances.
With nearly 30 years of manufacturing experience, OSI remains committed to quality workmanship, dependable turnaround times, and delivering products our customers can count on.
Our History. Our Experience. Our Commitment.
Founded in 1996, Oklahoma Specialties, Inc. (OSI) has built its reputation on quality workmanship, precision manufacturing, and dependable service.
With decades of experience manufacturing hot-forged transition nozzles for air-cooled heat exchanger headers, OSI has continued to expand its capabilities to meet the changing needs of the industries we serve. Today, our products support data centers, power generation, petroleum and chemical processing, pipeline systems, and other industrial applications.
As industry demands evolve, OSI remains focused on providing quality components manufactured to customer specifications, with reliable turnaround times and consistent workmanship.
Precision-Manufactured Transition Nozzles
OSI transition nozzles are manufactured to provide a smooth, secure connection between piping and components of varying sizes and configurations. Designed for demanding industrial applications, our hot-forged nozzles offer the strength, dimensional accuracy, and durability required for dependable performance.
Each nozzle is manufactured to customer specifications, with close attention to material requirements, precise tolerances, and consistent quality. We use tested, quality-verified pipe materials and accommodate a range of sizes and configurations to meet the specific needs of each application.
Proudly manufactured in the USA, our transition nozzles are available for shipment throughout the United States and Canada.
Available Sizes & Materials
Sizes & Wall Thickness:
6"–12": Schedule 80 through XXH (Double Extra Heavy)
14": Schedule 80 & 120
16": Schedule 80 only
Materials: SA-234 WPB Carbon Steel, Stainless Steel, Chrome Alloy Steel, and Titanium
Industry Standards & Specifications
Forged fittings manufactured to per ASME, ASTM, MSS, Canadian, and European Pressure Equipment Directive (PED) requirements.
The Growing Demand for Data Center Cooling
As data centers expand to support artificial intelligence, cloud computing, and increased processing demands, the need for effective cooling continues to grow. These facilities generate significant heat, requiring cooling systems capable of maintaining safe operating temperatures.
Air-cooled heat exchangers and dry coolers are among the technologies used to remove this heat. Transition nozzles serve as connecting components within heat exchanger assemblies, allowing fluid to flow between sections of differing sizes.
As cooling requirements increase, these established industrial components are finding expanded applications in modern data center infrastructure.
Today, our capabilities include:
Hot-forged transition nozzles and swages
Carbon steel and stainless steel nozzles
Extended pipe headers
Coped pipe components
Precision CNC lathe machining
Custom industrial components and fabrication
Whether producing standard components or manufacturing to specialized drawings and specifications, we understand that every part plays an important role in the equipment it supports.
Leadership Built on Hands-On Experience
Toby Brewer | President
With 30 years of experience in the manufacturing industry, Toby brings extensive knowledge and hands-on expertise to his role as President of OSI. His background includes quality control, Level III Non-Destructive Testing (NDT), and certification as a Welding Engineer. Since joining OSI in 2014, he has remained dedicated to maintaining the highest standards of quality, precision, and craftsmanship.
Toby believes in hard work, doing things right, and leading by example. He takes pride in the relationships built with customers over the years and the skilled team behind OSI. His commitment is to continue growing the company while delivering the dependable products, quality, and service customers have come to trust.
Quality Is More Than a Standard
Quality has always been central to our manufacturing process.
Our products are manufactured to customer specifications, with attention to material selection, dimensional accuracy, and dependable performance.
Our experience includes working with carbon steel, stainless steel, chrome alloys, and other specialty materials for demanding industrial applications.
From custom manufacturing requirements to precision-machined components, we understand the importance of getting the details right.
At OSI, our goal isn't simply to manufacture parts. It's to build lasting relationships by delivering products our customers can trust.
Manufacturing Solutions Built Around Your Needs
Every project is different, and we recognize the importance of providing solutions tailored to each customer's requirements.
Whether you need forged transition nozzles, custom pipe components, or precision CNC machining, our team is ready to review your specifications and discuss your manufacturing needs.
Project Inquiry
Have a project in mind? Send us your drawings, specifications, or project details, and our team will review your requirements to provide a customized quote.