Coupling, Slip x Slip PVC Schedule 40 10" (429-100)

The 10" PVC Schedule 40 Coupling (Slip x Slip) is a large-diameter fitting designed to join two sections of 10-inch Schedule 40 PVC pipe in a straight run. With slip socket connections on both ends, this coupling creates a permanent, pressure-tight joint through solvent cement welding — the standard installation method for Schedule 40 PVC systems requiring a clean, full-bore connection with no restriction to flow.

At 10 inches, this is a large-format fitting primarily specified in municipal water distribution, industrial process mains, large-scale irrigation infrastructure, and gravity drainage systems. Couplings at this diameter are most commonly used when extending an existing run, making field repairs to damaged pipe sections, or closing out a piping assembly where two pre-cut pipe ends need to be permanently joined without a union or mechanical coupling.

The slip-socket configuration provides the most hydraulically efficient joint available in PVC fittings — the inside bore remains consistent with the pipe interior, producing no shoulder, step, or turbulence-inducing transition. For large-diameter systems where flow velocity and pressure loss are engineering considerations, this matters. The fitting is manufactured to ASTM D2466 standards and is compatible with Schedule 40 PVC pipe throughout its rated pressure and temperature range.

Specifications:

Industries & Applications:

• Municipal Water Distribution — Used in large-diameter water mains for pipe extensions, tie-ins, and field repairs where a permanent slip joint is specified
• Wastewater & Gravity Drainage — Incorporated in collection mains and gravity sewer laterals where 10" PVC runs require mid-run joining or repair without mechanical hardware
• Large-Scale Irrigation — Applied along mainline and primary submain runs on large commercial, agricultural, and golf course irrigation systems where 10" mains are standard
• Industrial Process Piping — Suited for chemical-resistant large-diameter conveyance systems in manufacturing, water treatment, and industrial fluid handling applications
• Stormwater & Site Utilities — Specified in civil site utility plans for stormwater conveyance, drainage collection, and underground utility runs requiring large-bore PVC connections
• Aquatics & Water Features — Used in high-volume recirculation mains at commercial aquatic facilities, water parks, and large decorative water feature systems where 10" pipe is part of the primary circulation loop