Versatile Smith-Blair 411 Steel Pipe Couplings

Blair Supply Corp. brings you an ideal tool for creating straight connections between plain end pipes of the same outside diameter. Manufactured by the de facto industry leader, Smith-Blair, the 411 Steel Pipe Coupling is a robust, steel-fabricated fitting applicable for all types and materials pipes, including HDPE (with the use of stiffeners).

The bolted, sleeve-type design of the Smith-Blair 411 Steel Coupling allows for swift and straightforward installation, eliminating the need for special pipe end preparation, additional fittings, or any form of welding. Despite the simplicity, the 411 sacrifices nothing in terms of reliability or effectiveness, making it a phenomenal choice in any applicable situation.

The 411 also allows for limited expansion and contraction, helps reduce pipe fatigue by dampening vibrations, and even makes it possible to change piping direction without any need for elbows or bends, thanks to its good deflection capabilities. With Smith-Blair 411 Couplings, you can rest assured that the continuity and integrity of the pipe system will be maintained.

Smith-Blair 411 Steel Fabricated Coupling FEATURES:

• Applications: Mechanical and high-pressure settings; Also acceptable for steam, gas, water, and air lines.
• Temperature Range: -20°F to 180°F
• Working Pressure: Up to 150 PSI
• Available Sizes Range (in inches): 1/2 to 54 (1/4 inch increments, varies);
  • Larger and custom sizes available upon request. 

Smith-Blair 411 Steel Fabricated Coupling MATERIALS SPECIFICATIONS (subject to change):

• SLEEVE: Carbon Steel with a minimum yield of 30,000 PSI;
• FOLLOWERS: Ductile Iron or Steel designed for a high strength-to-weight ratio.
• GASKET: Nitrile (Buna N) ensures superior performance with enhanced resistance to environmental factors and harsh chemicals.
• FINISH: Flexi-Coat® Fusion Bonded Epoxy protective coating enhances protection from rust, chemical, and environmental damage, extending the lifespan of the fitting.