Cap, Slip PVC Schedule 80 4" (847-040)

The 4" PVC Schedule 80 Slip Cap (847-040) provides a permanent, pressure-rated end closure for 4" Schedule 80 PVC piping systems — sealing the open end of a pipe run cleanly and completely with a single solvent-welded joint. The slip socket accepts standard 4" Schedule 80 pipe directly for solvent-welded assembly, producing a flush, leak-resistant termination that becomes a permanent part of the pipe assembly itself and matches the full structural and chemical performance of the surrounding Schedule 80 system.

The solvent-welded slip connection is the defining characteristic that distinguishes the 847-040 from its threaded counterpart, the 848-040 FPT cap. Where the FPT cap threads onto a male-threaded pipe end and can be removed and reinstalled as maintenance requires, the slip cap creates a permanent, non-removable closure that cannot be accessed without cutting the pipe. This makes the 847-040 the correct choice for line ends that are designed as fixed, permanent terminations — dead-end headers, sealed system boundaries, below-grade or encased pipe terminations, and any application where the line end will not need to be reopened, extended, or accessed over the system's service life. For line ends where future access is anticipated, the threaded 848-040 FPT cap or a flanged blind flange provides a removable alternative.

At 4" diameter in Schedule 80 gray PVC, this cap is well suited to the primary distribution headers, process manifold ends, and equipment isolation line terminations that characterize industrial process piping and chemical handling systems where Schedule 80 is specified for pressure performance and chemical resistance. The elevated wall thickness of Schedule 80 ensures the cap end does not become a structural weak point in the assembly, and the gray PVC construction provides the same broad chemical compatibility across acids, alkalis, and industrial process fluids as the surrounding Schedule 80 pipe and fittings.

Manufactured to Schedule 80 specifications and dimensionally compliant with ASTM D2467, the 847-040 ensures reliable compatibility with Schedule 40 pipe and fittings from all major manufacturers at the 4" slip socket. NSF 61 certification confirms suitability for potable water contact where required.

Specifications:

Industries & Applications:

• Chemical Processing — permanent end closures on 4" chemical feed, dosing, and process fluid headers at manifold ends, valve station terminations, and sealed system boundaries where the line end will not require future access
• Industrial Process Piping — fixed line-end terminations on plant utility, cooling water, and recirculating process headers where a permanent, non-removable solvent-welded closure is specified over a threaded or flanged alternative
• Water & Wastewater Treatment — permanent end closures on 4" process piping headers in treatment plant systems where Schedule 80 is specified for pressure or chemical compatibility and the line end is a fixed system boundary
• Commercial & Industrial Plumbing — sealed pipe end terminations in high-pressure mechanical systems where the 4" line end is a permanent design feature rather than a serviceable access point
• Aquaculture & Food Processing — corrosion-resistant permanent pipe terminations in recirculating systems and chemical-exposure fluid handling installations where gray PVC chemical compatibility is required at the line end
• Irrigation & Agriculture — permanent sealed terminations on 4" Schedule 80 mainline headers and manifold ends in high-pressure chemical injection and large-scale irrigation systems where future access to the line end is not anticipated