The B&K 521-321HC Black Iron Reducing Coupling is engineered for secure and reliable connections between two male-ended pipes of different diameters. Made from durable black iron, this coupling is ideal for heavy-duty applications in plumbing and industrial systems. Its malleable construction ensures a tight seal and long-lasting performance under demanding conditions. Threaded ends meet industry standards for compatibility and ease of installation, making it a trusted choice for professionals and DIY enthusiasts.

Key Features:

• Premium Black Iron Construction: Provides strength and durability for industrial-grade applications.
• Reducing Design: Connects pipes of different diameters for versatile system configurations.
• 150-lb Class Malleable Fitting: Ensures a secure seal and robust performance.
• Threaded Ends: Complies with ANSI/ASME B1.20.1 standards for leak-free connections.
• Pressure & Temperature Capability: Handles up to 500 PSI at 150°F for demanding environments.
• Standards Compliance: Meets ASTM and ASME specifications for quality assurance.
• Versatile Applications: Suitable for transporting lubricant, oil, grease, LP gas, natural gases (nitrogen, oxygen), steam, and diesel.
• Not for Potable Water: Designed for industrial and mechanical systems only.

Applications:

• Plumbing repairs and extensions
• Industrial fluid and gas transport
• DIY projects requiring durable fittings
• Systems handling steam, fuel, and compressed gases