Female Adapter, Slip x FPT PVC Schedule 40 5" (435-050)

The 435-050 is a 5" PVC Schedule 40 female adapter with a slip (socket) inlet and a female pipe thread (FPT) outlet, designed to transition a solvent-welded 5" PVC pipeline to a female-threaded connection point. The slip inlet accepts a standard 5" PVC pipe end joined with solvent cement and primer per ASTM D2564, while the FPT outlet provides a 5" NPT female-threaded port that accepts any standard male-threaded (MPT) pipe, fitting, valve, or equipment connection — no solvent welding required at the threaded end.

Manufactured from rigid PVC compound conforming to ASTM D1784 cell classification requirements, this fitting delivers the corrosion resistance, chemical compatibility, and long service life associated with Schedule 40 PVC across a wide range of commercial, industrial, and municipal piping applications. The Schedule 40 wall thickness provides reliable pressure-rated performance for both pressurized distribution systems and gravity-flow installations, and the all-PVC construction eliminates metal corrosion and galvanic compatibility concerns at the transition point throughout the fitting's service life.

At the 5" size, the female adapter is a large-diameter specialty fitting that appears in a specific and well-defined set of applications — primarily at pump connections, large valve tie-ins, equipment nozzles, and flanged assembly transitions where a 5" solvent-welded pipe run must interface with a male-threaded port on a large piece of equipment or a threaded fitting assembly. The 5" pipe size is less common in standard commercial and residential applications but appears regularly in municipal water distribution, large-scale irrigation, industrial process systems, and fire suppression mains where high-flow large-diameter PVC is specified. The FPT outlet accepts a 5" MPT pipe end or fitting, with PTFE thread tape or appropriate thread sealant applied to the male threads before assembly to ensure a leak-resistant seal. The threaded connection at the outlet remains serviceable — large valves, equipment connections, and threaded assemblies can be removed and replaced without disturbing the upstream solvent-welded pipeline, a meaningful operational advantage in large-diameter systems where cutting and re-piping a permanent joint represents a significant material and labor cost. For buyers who need a male-threaded outlet rather than a female-threaded outlet at this pipe size, the male adapter (MPT x slip) is the correct alternative and should be cross-referenced before ordering.

Specifications:

Industries & Applications:

• Municipal Water & Wastewater — Transitioning 5" solvent-welded PVC pipe runs to female-threaded connections at large pump stations, treatment facility equipment nozzles, distribution system valve tie-ins, and metering equipment ports where a serviceable threaded interface is required at a large-diameter pipeline connection
• Irrigation & Agriculture — Connecting 5" solvent-welded mainline pipe to male-threaded pump discharge connections, large valve bodies, and filter station equipment ports in large-scale pressurized irrigation systems where the 5" pipe size serves a primary distribution or trunk main function
• Industrial Process Piping — Slip-to-thread transitions at large equipment nozzles, pump connections, and valve bodies in chemical distribution, cooling water, and process fluid systems where a 5" solvent-welded run must interface with a male-threaded equipment port in a corrosion-resistant all-PVC assembly
• Fire Suppression — Transitioning 5" solvent-welded fire suppression mains and riser pipes to male-threaded valve, check valve, and equipment connections where the threaded interface must remain serviceable for inspection, testing, and component replacement
• Commercial Plumbing — Large-diameter slip-to-thread transitions in mechanical room distribution systems and primary supply headers where 5" solvent-welded pipe runs must connect to male-threaded large valve bodies, strainer assemblies, or equipment connections
• Aquaculture & Water Treatment — Transitioning 5" solvent-welded supply and distribution pipe runs to male-threaded equipment connections, pump ports, and valve assemblies in large recirculating aquaculture and water treatment systems where the downstream threaded connection must remain accessible for maintenance and equipment replacement