The B&K 3/4-in x 1/2-in FIP Black Iron Reducing Coupling is a reliable and durable fitting designed to connect two male-ended pipes of differing diameters. Constructed from black malleable iron, this coupling is ideal for industrial and residential applications that involve the transport of non-potable fluids. It is commonly used in systems handling lubricants, oils, greases, liquefied petroleum (LP) gases, natural gases, steam, and diesel.

This coupling is part of B&K’s 150-lb class malleable fittings, which are known for their ability to form secure seals due to the relative softness of the metal. It is engineered to perform under pressure, with a rating of up to 500 PSI at 150°F. The threaded ends are manufactured to ANSI/ASME B1.20.1 standards, ensuring compatibility with standard piping systems. The product also meets ASTM and ASME standards, reflecting its high-quality construction and reliability.

Whether you're working on a mechanical system, fuel transport, or a custom plumbing project, this reducing coupling offers a dependable solution for adapting pipe sizes while maintaining system integrity.

Key Features & Applications

• Connects two male-ended pipes of differing diameters
• Black malleable iron construction for strength and durability
• Ideal for:
  • Lubricant
  • Oil
  • Grease
  • Liquefied petroleum (LP) gas
  • Natural gases (e.g., nitrogen, oxygen)
  • Steam
  • Diesel
• 150-lb class malleable fittings
• Provides a secure seal due to metal softness
• Operates up to 500 PSI at 150°F
• Threaded ends comply with ANSI/ASME B1.20.1
• Meets ASTM and ASME standards