About This

Certified for Safety & Performance: This 4-inch galvanized plug is UL/cUL and FM certified, making it ideal for use in fire protection and industrial piping systems that require rigorous safety standards.
Durable Malleable Iron Construction: Crafted from ASTM A197 malleable iron, this plug offers superior strength and longevity, even in high-pressure systems, and provides a reliable seal for water, air, and steam applications.
NPT Threaded Design: The 4-inch NPT threads ensure a secure, tight connection to pipes, preventing leaks and ensuring efficient sealing in a variety of industrial and commercial applications.
Safe for Multiple Uses: This plug is certified for safety, making it an ideal choice for water, air, and steam systems, ensuring reliable performance in sensitive applications that require clean and secure seals.
Pressure Rating & Compliance: With a Class 150 pressure rating and compliance to ASME B16.3/B16.14/B16.39 standards, this plug is a robust solution for a range of systems, designed to withstand pressures up to 175 psi as per FM standards.