Black Malleable Fittings

At NDL, we offer an extensive selection of black malleable iron fittings, ideal for HVAC-R and hydronic applications. These fittings provide reliable connections for both heating and cooling systems, ensuring durable performance in a variety of industrial and residential settings.

Design and Features

  • Versatility
    Our fittings are designed with versatility in mind, offering a black finish specifically engineered for oil and gas fluid applications. Available for servicing both 150psi and 300psi applications, they are built to withstand the pressures and demands of these critical systems. Whether you’re dealing with residential or industrial needs, our fittings provide reliable performance in a wide range of applications.
  • Rigorous Testing
    To ensure the highest level of quality, every fitting undergoes rigorous testing and thorough quality inspections. This process guarantees that each piece meets or exceeds the necessary standards for performance and safety. You can trust that our fittings will perform optimally, even in the most demanding environments, providing long-lasting durability and reliability.
  • Extensive Selection
    We offer an extensive selection of fittings, available in 13 diameters ranging from 1/8” to 4”. This broad range ensures that you’ll find the perfect fitting for your specific application, whether it’s a small-scale project or a large, complex installation. Our fittings are designed to deliver superior performance, and their rigorous testing guarantees that they will stand the test of time in any setting.

Certifications and Approvals

  • ASTM A197/A197M – Materials standard
  • FM approved – Factory Mutual approvals
  • ASME B16.39 – Union dimensions standard
  • ASME B16.3, ASME B16.14 – Dimensions standard
  • UL/cUL certified – Underwriter Laboratories certification
  • NSF 61 – Drinking Water System Components standard / certified
  • NSF 372 – Safe Water Drinking Act (SDWA) lead-free plumbing requirements

Black Malleable Fittings Temperature Table

TEMPERATURE (°F)CLASS 150 (PSIG)
-20°F to 150°F300
200°F265
250°F225
300°F185
350°F150 (Note 1)

Note 1: Permissible for service temperature up to 365°F, reflecting the temperature of saturated steam at 150 PSIG.

Black Malleable Fittings
Literature
Product GuideDownload
Technical Specifications Submittal SheetDownload