6" x 7" Steel Repair Coupling

The 411 Steel Repair Coupling is a bolted sleeve type coupling designed for joining plain end pipes of the same diameter without the need for welding or special pipe fittings. Ideal for applications that require reliable pipe joining with easy installation, the 411 Series meets AWWA C219 Standards, ensuring durability and performance across various environments. This coupling effectively dampens vibration and allows for limited expansion and contraction, extending the service life of your piping system.

Key Features:

• Bolted sleeve design allows quick and secure joining of plain end pipes
• Meets AWWA C219 Standards for industry-approved performance
• Allows for limited expansion, contraction, and vibration dampening
• Easy installation with no special pipe end preparation required
• Available in multiple pipe O.D. sizes and sleeve lengths
• Customizable for odd O.D.s and unique applications
• Fusion Bonded Epoxy Finish for corrosion resistance

Construction & Durability:

• Sleeve: ASTM A53, ASTM A512, or Carbon Steel with a minimum yield of 30,000 PSI
• Followers: Ductile Iron ASTM A536, Steel AISI C 1020, or A715 Grade 80 HSLA Steel
• Bolts & Nuts: High strength, low alloy Steel with optional Stainless Steel or Carbon Steel ASTM A307
• Gasket: Nitrile (Buna N) NSF 61 for superior chemical resistance and durability
• Finish: Flexi-Coat® Fusion Bonded Epoxy for corrosion resistance

Performance & Functionality:

• Working Pressure: Up to 150 PSI
• Temperature Range: -20°F to 180°F
• Deflection Capabilities: Allows for changes in piping direction without elbows or bends
• Pipe Applications: Compatible with all pipe types; HDPE requires use of stiffeners
• Not a restraint coupling; proper anchoring required to prevent pipe pullout

Ease of Installation & Use:

• No welding or special pipe fittings required
• Quick and straightforward installation process
• Accommodates anchor studs for restrained applications
• Can be provided with or without pipe stops to meet specific needs

Technical Specifications:

• Pipe Sizes: 6" x 7"
• Pressure Rating: Up to 150 PSI
• Temperature Range: -20°F to 180°F
• Sleeve Material: ASTM A53, ASTM A512, or Carbon Steel
• Follower Material: Ductile Iron ASTM A536 or Steel AISI C 1020
• Gasket Material: Nitrile (Buna N) NSF 61
• Finish: Fusion Bonded Epoxy (Flexi-Coat®)

Installation & Application:

• Ideal for joining plain end pipes in various water and utility applications
• HDPE pipes require stiffeners for proper installation
• Not suitable for unanchored installations; proper anchoring is required
• Use for quick, easy pipe repairs without special fittings or welding

Compatibility & Optional Accessories:

• Compatible with all pipe types; HDPE requires stiffeners
• Optional anchor studs available for joint restraint
• Custom sizes available for unique applications