Cap, Slip PVC Schedule 80 1" (847-010)

This 1" Schedule 80 PVC Slip Cap provides a permanent, solvent-cemented closure at the end of a 1" PVC pipe run or open spigot end in a Schedule 80 pressure piping system. The single slip socket end accepts standard 1" PVC pipe or a spigot-end fitting for solvent cement joining, producing a sealed, pressure-rated termination that becomes a continuous, integral part of the piping system once cured.

The slip cap is the definitive permanent closure in a solvent-welded PVC piping system, and understanding its role relative to the other Schedule 80 closure fitting types clarifies when it is the correct selection. The 847-010 slides over a 1" pipe end or spigot from the outside and cements in place — permanently closing the pipe end from the exterior. This distinguishes it from the 849-series spigot plug, which inserts into a slip socket port from the inside to close an open female socket opening. Both are permanent, all-cement closures; the selection between them depends on the orientation of the port being closed — a pipe end or spigot (847-010) versus an open female socket port (849-series). At 1" Schedule 80, the other closure option for a pipe end is the 848-series FPT cap — but that fitting threads onto a male-threaded pipe end or nipple and can be removed without cutting; the 847-010, by contrast, solvent-cements permanently to a plain pipe end and cannot be removed once cured. When permanent closure of a 1" plain pipe end is the correct specification, the 847-010 is the fitting of choice.

This permanence is precisely the correct design choice at pipe ends that are genuinely terminal — completed process header stub ends, instrument supply line terminations, equipment connection stubs on systems that have reached final configuration, decommissioned branch pipe ends, and unused outlets that will not be reopened during the life of the installation. At 1", these permanent closure scenarios are among the most common in commercial and industrial Schedule 80 systems given the prevalence of 1" pipe across process headers, water distribution mains, equipment supply runs, and instrument supply lines throughout standard industrial and commercial facilities. The 847-010 is a routine stocking component in any Schedule 80 installation or field service inventory at this size.

During construction and commissioning, the 847-010 provides a permanent, schedule-consistent termination point at stubout ends during hydrostatic and pneumatic pressure testing of 1" Schedule 80 pipe runs. At 450 psi @ 73°F, this cap is rated well above the typical test pressures applied to Schedule 40 and Schedule 80 PVC systems — ensuring the cap does not become the pressure-limiting component during test. Using a Schedule 80 cap on a Schedule 80 line maintains pressure rating consistency at the terminal joint, avoiding the rating discontinuity that a Schedule 40 cap substitution would introduce at the pipe end closure position.

Manufactured in dark gray Schedule 80 PVC, this cap delivers the increased wall thickness and mechanical strength required in industrial, chemical, and commercial pressure piping where Schedule 40 ratings are insufficient. PVC's broad chemical resistance covers acids, bases, salts, chlorine, and most common process fluids, providing long service life at line termination points in corrosive environments where metal caps would corrode, pit, or contaminate the fluid stream at the closed pipe end. NSF/ANSI 61 listing confirms suitability for potable water contact.

Rated to 450 psi at 73°F, this cap handles standard to elevated pressure service across a wide range of fluid handling applications. For installation, clean and dry both the pipe end and socket interior thoroughly before application. Apply purple PVC primer to both mating surfaces, then apply a uniform coat of Schedule 80 PVC solvent cement to both the pipe end and socket interior before joining. Insert the pipe with a slight quarter-turn twist and hold firmly for 30 seconds to prevent pushback. Allow full cure time per the cement manufacturer's temperature and humidity guidelines before pressurizing the system. Apply published pressure derating factors for service temperatures above 73°F.

Specifications:

Industries & Applications:

• Permanent Line Termination — Seals the end of a 1" Schedule 80 PVC pipe run at the final connection point in process headers, equipment supply lines, water distribution mains, instrument supply runs, and secondary distribution headers where the terminal end will not be reopened — the primary application across all industries served by 1" Schedule 80 PVC piping given the prevalence of this pipe size at permanent stub and terminal positions in commercial and industrial system layouts
• System Commissioning & Pressure Testing — Provides a permanent, schedule-consistent termination point at 1" stubout ends during hydrostatic and pneumatic pressure testing of Schedule 80 PVC piping systems in industrial and commercial construction — the 450 psi pressure rating ensures the cap is not the limiting component during test; consistent Schedule 80 rating maintains pressure performance continuity at the terminal joint through the full test cycle
• Industrial Process Piping — Permanently caps 1" Schedule 80 PVC pipe ends at decommissioned equipment connections, unused branch pipe stubs, and terminal positions on process headers, chemical distribution lines, and pump manifold runs in water treatment, chemical processing, and manufacturing facilities where the terminal pipe end will not be reconnected and permanent solvent-cemented closure is the correct specification
• Commercial Plumbing — Caps completed 1" pipe run ends at future fixture rough-ins, unused manifold branch stubs, and equipment connection terminations in building water supply and mechanical room Schedule 80 systems where the terminal end is permanently closed and future access is not anticipated — distinguishing it from FPT cap applications where removability is a design requirement
• Water & Wastewater Treatment — Closes decommissioned 1" pipe and branch connections, terminal positions on process header stubs, and permanently capped sampling port pipe ends on Schedule 80 PVC process piping in municipal and industrial water treatment and distribution facilities where the pipe end termination is a permanent system feature
• Instrument Supply Line Termination — Permanently caps 1" Schedule 80 PVC instrument supply line ends at terminal monitoring stations, decommissioned instrument tap pipe stubs, and completed instrument supply runs where the 1" pipe end has reached its final connection point in the solvent-welded instrument supply system and permanent closure is the correct specification
• Irrigation & Agricultural Systems — Permanently caps 1" Schedule 80 PVC mainline and lateral pipe ends at seasonal or permanent system termination points, decommissioned zone connection stubs, and expansion point pipe ends in commercial irrigation and agricultural water supply systems where the pipe end is a permanent terminal position in the solvent-welded system layout