Cap, Slip PVC Schedule 40 1-1/4" (447-012)

This 1-1/4" Schedule 40 PVC Slip Cap provides a permanent, pressure-rated solvent-cement closure for any standard 1-1/4" PVC pipe end, terminating the pipe run with a full-strength cemented bond equivalent in integrity to a standard pipe-to-fitting joint. Constructed in white Schedule 40 PVC, it offers the corrosion resistance and chemical compatibility required across a wide range of commercial plumbing, irrigation, and light industrial applications where a 1-1/4" socket pipe end must be permanently sealed without threading, plugging a fitting hub, or introducing additional intermediate fittings at the termination point.

The slip socket interior is sized to accept the exterior of any standard 1-1/4" PVC pipe end and is solvent-cemented in place to form a permanent, leak-free closure — identical in installation method and joint strength to cementing a pipe end into any other Schedule 40 socket fitting. This closure method is the correct choice when a 1-1/4" pipe end must be permanently sealed and no future access to the port is anticipated — as opposed to the FPT cap (448-012 confirmed in this catalog session), which threads over a male NPT pipe end and can be removed and reinstalled for future access, or the MPT plug (450 series, 1-1/4" if stocked), which threads into a female port and also offers removability. The slip cap should not be confused with the spigot plug (449-012 confirmed in this catalog session), which inserts into and cements into the interior of a socket fitting hub rather than socketing over a pipe end exterior — the slip cap is the correct choice when terminating a pipe end directly while the spigot plug is correct when closing a spare socket port on an existing fitting body. At 1-1/4", this cap most commonly terminates dead-end 1-1/4" socket pipe runs in irrigation sub-main and secondary distribution assemblies, closes pipe ends during pressure testing, permanently seals boundary pipe ends at phased system construction limits, and terminates spare socket branch pipe stubs in commercial plumbing and light industrial distribution systems where the sealed end requires no future access and the permanent solvent-cement closure maintains all-socket assembly integrity throughout.

Rated to approximately 370 psi at 73°F, this cap is suited for standard commercial and light industrial water distribution and irrigation service within its pressure class. Its PVC composition provides excellent resistance to corrosion, scale, chlorinated water, and a broad range of chemical exposures. NSF/ANSI 61 listing confirms suitability for potable water contact, including use in drinking water distribution and treatment systems.

Apply solvent cement to both the pipe end exterior and the fitting socket interior per ASTM D2564 procedures, using a primer appropriate for the pipe and fitting schedule. Insert the pipe end fully into the socket and maintain a quarter-turn during assembly for even cement distribution across the joint surface. Because the slip cap is a permanent closure, confirm the pipe end is intended for permanent sealing before cementing — the joint cannot be disassembled after cure without cutting into the pipe; if future access is anticipated, the FPT cap (448-012 confirmed in this session) or MPT plug (450 series, 1-1/4" if stocked) provides a removable threaded alternative at a threaded pipe end or female-threaded port. Allow adequate cure time before pressurizing the system, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Permanently terminates dead-end 1-1/4" socket sub-main and secondary distribution pipe runs, seals system boundary pipe ends at phased installation limits, and closes spare pipe stub ends during pressure testing in agricultural and municipal irrigation systems where the sealed pipe end requires no future access and a permanent solvent-cement closure maintains all-socket assembly integrity at the termination point
• Commercial Plumbing — Permanently closes 1-1/4" socket PVC pipe ends at dead-end branch terminations, distribution header boundaries, and system test point caps on pressurized supply systems in commercial building water distribution systems where the sealed pipe end requires permanent closure and all-socket construction is maintained throughout the assembly
• Industrial Process Piping — Provides a permanent solvent-cement closure at dead-end 1-1/4" socket process water distribution pipe runs, header terminations, and system boundary pipe ends in water treatment, chemical processing, and manufacturing facilities where all-cemented system integrity is maintained at every permanently sealed pipe end throughout the distribution layout
• Chemical Handling — Delivers a corrosion-resistant permanent socket closure at 1-1/4" pipe end termination points in chemical distribution assemblies, pump station socket piping, and feed line headers conveying acids, caustics, fertilizer solutions, and other fluids incompatible with threaded metal closures — the solvent-cement bond providing equivalent long-term chemical resistance to the fitting body itself at each permanently sealed pipe end
• Water Treatment & Aquaculture — Used to permanently seal dead-end 1-1/4" socket pipe runs, spare outlet pipe stubs, and distribution header pipe terminations in filter manifold assemblies, pump station socket piping, and treatment system distribution layouts where NSF/ANSI 61 compliance and long-term chemical resistance are required at all permanently sealed pipe ends throughout the all-cemented assembly
• HVAC & Mechanical Systems — Permanently closes unused 1-1/4" socket pipe ends on cooling tower supply assemblies, chilled water distribution socket piping, and chemically treated water system dead-end socket pipe run terminations within the Schedule 40 pressure class where permanent all-socket system construction is maintained at every sealed pipe end location