Transition Nozzles

Carbon Steel Transition Nozzles

OSI manufactures precision hot-forged carbon steel transition nozzles designed to provide smooth, secure connections between varying pipe sizes and system configurations. Engineered for strength, durability, and dependable performance, our transition nozzles help promote efficient flow while providing structural integrity and a precise fit in demanding industrial environments.

Proudly manufactured in the USA from high-quality, tested carbon steel, OSI transition nozzles meet customer specifications and tight tolerances. Designed for air-cooled heat exchanger headers and other industrial piping applications, our products serve industries including power generation, data centers, oil and gas, and other demanding environments where strength, pressure resistance, and long-term reliability are essential.

With a commitment to precision craftsmanship, consistent quality, competitive lead times, and dependable delivery, OSI transition nozzles are built to perform and delivered when you need them.

Available Sizes & Wall Thickness

• 6"–12": Schedule 80 through XXH (Double Extra Heavy)

• 14": Schedule 80 & 120

• 16": Schedule 80 only

Material: ASTM A234 Grade WPB Carbon Steel and/or ASTM A420 Grade WPL6 Low-Temperature Carbon Steel

Industry Standards: Manufactured to applicable ASME, ASTM, MSS, Canadian, and PED requirements, as specified by the customer.

Shipping: Nationwide and international shipping available to meet our customers’ needs.

Need a custom size, height, or special configuration? Contact OSI to discuss your specific requirements and available manufacturing options.