Mueller 521-354 Malleable Iron Reducing Coupling 1 x 3/4

Product Description

The Mueller 521-354 is a malleable iron reducing coupling designed for various plumbing and HVAC applications. It features a nominal size of one inch by three-quarters of an inch with NPT threaded ends. This coupling is suitable for high-pressure situations, rated for 300 psi working pressure and a temperature range of minus twenty degrees to one hundred fifty degrees Fahrenheit.

• Malleable iron construction for durability
• Rated for 300 psi and suitable for oil and gas fluid applications
• Compatible with NPT fittings

Product Highlights

Mueller provides a reliable solution for connecting different pipe sizes in plumbing systems and HVAC installations.

Product Information

Standard Information

• Brand: Mueller
• Part Number: 521-354

Technical Specifications

• Type: Reducing Coupling
• Size: 1 x 3/4 inches
• Material: Malleable Iron
• Color/Finish: Black Oxide
• Connection Ends: Threaded (NPT)
• Pressure Class: 150 lb
• Pressure Rating: 300 psi
• Temperature Rating: -20 to 150 degrees Fahrenheit
• Industry Standards/Approvals: ANSI/ASME B1.20.1, ASME B16.3, ASTM A153