Female Adapter, Slip x FPT PVC Schedule 40 1" (435-010)

This 1" Schedule 40 PVC Female Adapter (Slip x FPT) provides a direct transition from a 1" PVC socket pipe run to a 1" female NPT-threaded outlet, combining a solvent-cement socket inlet and a female-threaded outlet in a single compact fitting body. Constructed in white Schedule 40 PVC, it offers the corrosion resistance and chemical compatibility required across a wide range of commercial irrigation, commercial plumbing, and light industrial applications where a 1" socket pipe run must terminate at a female-threaded receptacle for connection to a 1" male-threaded valve, pump body, equipment port, filter housing, or distribution manifold component without introducing additional transition hardware at the pipe run end.

The 1" slip socket inlet accepts 1" PVC pipe for a permanent solvent-cement bond, anchoring the fitting to the upstream socket distribution assembly. The 1" FPT outlet accepts any standard 1" male NPT-threaded pipe end, nipple, valve body outlet, pump connection, or equipment port for a pressure-tight mechanical connection when made up with thread sealant or PTFE tape. This Slip x FPT configuration is the standard approach to terminating a 1" socket pipe run at a female-threaded receptacle — the correct choice whenever the downstream component presents a male NPT thread that must seat into a female port rather than threading over one. The female adapter is the confirmed functional inverse of the 1" male adapter (436-010 confirmed in this catalog session) — where the 436-010 provides a male-threaded outlet for threading into a 1" female-threaded port off a socket run, the 435-010 provides a female-threaded outlet for receiving a 1" male-threaded component off the same socket run; the correct choice between them is determined entirely by whether the downstream connection is a female-threaded port (use 436-010 MPT) or a male-threaded component (use 435-010 FPT). At 1", the full-size 435-010 should not be confused with the confirmed reducing variant 435-130 (1" x 1/2" Slip x FPT Reducing Female Adapter, confirmed in this session), which shares the same 1" slip inlet but steps down to a 1/2" FPT outlet rather than maintaining the full 1" diameter at the threaded end — 435-010 is the correct choice when the downstream male-threaded component is also 1" NPT, while 435-130 is the correct choice when the downstream component is 1/2" NPT. At 1", this adapter most commonly terminates all-socket irrigation mainline and sub-main pipe runs at pump discharge male-threaded connections, valve body MPT inlets, filter housing male-threaded ports, and zone manifold entry stubs where the upstream pipe run is all-socket 1" PVC and the downstream male-threaded component must seat into a female-threaded receptacle at the pipe run end — the most widely specified pipe-to-equipment female-threaded transition at the dominant commercial irrigation and commercial plumbing distribution diameter.

Rated to approximately 450 psi at 73°F (governed by the 1" slip end), this adapter 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, making it a reliable long-term alternative to metal adapters in moisture-prone or chemically active environments. NSF/ANSI 61 listing confirms suitability for potable water contact.

Apply solvent cement to both the pipe end and fitting socket per ASTM D2564 procedures, using a primer appropriate for the pipe and fitting schedule. Insert pipe fully into the socket and maintain a quarter-turn during assembly. On the 1" FPT end, use a quality pipe thread sealant or PTFE tape on the male NPT threads of the mating downstream component before engagement. Avoid over-torquing — PVC female threads at 1" can crack under excessive torque applied through the mating male component. Allow adequate cure time on the cemented joint before pressurizing the system, and derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Irrigation & Water Distribution — Terminates 1" PVC socket mainline, sub-main, and primary distribution pipe runs at pump discharge male-threaded connections, filter housing MPT inlets, valve body male-threaded outlets, and zone manifold entry male-threaded stubs in agricultural, municipal, and commercial irrigation systems where the downstream male-threaded component must seat into a female-threaded receptacle at the end of the all-socket 1" pipe run — the dominant commercial irrigation mainline diameter for pipe-to-equipment female-threaded transition fittings
• Commercial Plumbing — Transitions 1" socket PVC distribution mains to female-threaded receptacles at pump body MPT connections, valve body male-threaded inlets, equipment male-threaded ports, and riser connection stubs in commercial building water distribution systems where the downstream male-threaded component requires a female-threaded socket at the 1" pipe run termination
• Pump Station Assemblies — Provides female-threaded receptacles at 1" socket pump suction and discharge pipe run terminations, bypass line male-threaded stubs, and valve station MPT inlet connections in pump station installations where the pump body, valve, or equipment presents a 1" male NPT thread at the pipe-to-equipment interface requiring a female-threaded receptacle
• Industrial Process Piping — Transitions 1" socket process water distribution pipe runs to female-threaded receptacles at pump MPT inlets, valve body male-threaded connections, flow meter male-threaded ports, and equipment interfaces in water treatment, chemical processing, and manufacturing facilities where all-socket downstream assemblies must receive male-threaded process equipment connections at the 1" distribution diameter
• Water Treatment & Aquaculture — Used at pump suction connections, filter housing male-threaded inlets, treatment equipment male-threaded ports, and recirculating system male-threaded component interfaces where a 1" socket pipe run must terminate at a female-threaded receptacle with NSF/ANSI 61 compliance required throughout the assembly
• Chemical Handling — Provides a corrosion-resistant socket-to-female-thread transition at 1" pipe run terminations in chemical distribution assemblies and pump station socket piping conveying acids, caustics, fertilizer solutions, and other fluids incompatible with metal adapters where the downstream male-threaded equipment or component port must seat into a female-threaded receptacle off the all-socket pipe run