The B&K 521-402HN 3/8-inch FIP Black Malleable Iron Cap is a robust fitting designed to seal the end of a piping system effectively. Constructed from malleable iron with a black finish, this cap offers durability and corrosion resistance for demanding environments. It is ideal for use in gas, oil, and industrial piping systems where strength and leak prevention are essential. This product is not intended for potable water applications.

Key Features

• Material: Malleable iron for superior strength.
• Finish: Black oxide for enhanced corrosion resistance.
• Connection Type: Female Iron Pipe (FIP) threaded ends.
• Thread Standard: ANSI/ASME B1.20.1 compliant.
• Pressure Class: 150 lb malleable fittings.
• Pressure Rating: Up to 300 PSI.
• Temperature Rating: -20°F to 150°F.
• Standards Compliance: Meets ASTM A153 and ASME B16.3 specifications.
• Leak-Proof Design: Ensures secure sealing for industrial applications.

Applications

• Transporting lubricant, oil, grease, LP gases, fuel.
• Suitable for natural gases, steam, and diesel.
• Commonly used in industrial piping systems and DIY projects.
• Not designed for potable water applications.