Female Adapter, Slip x FPT PVC Schedule 80 1" (835-010)

This 1" Schedule 80 PVC Female Adapter provides a permanent, pressure-rated transition from a solvent-cemented PVC pipe system to a 1" female NPT threaded connection, enabling a Schedule 80 PVC pipe run to receive male-threaded nipples, fittings, valve tail-pieces, and equipment ports at the pipe-to-thread interface. The slip socket end accepts standard 1" PVC pipe for solvent cement joining, while the FPT end receives any compatible 1" male-threaded (MPT) component on the threaded side.

Understanding the role of a female adapter in a PVC system requires distinguishing it from its male adapter counterpart. The female adapter presents an FPT end that receives male-threaded components — nipples, MPT adapters, valve bodies, and equipment ports with externally threaded inlets. The male adapter (836-series), by contrast, presents an MPT end that inserts into female-threaded ports. Both fittings transition between solvent-welded PVC pipe and a threaded interface, but they serve opposite thread orientations at the transition point. When the component being connected to the PVC run presents a male-threaded end — a threaded nipple, an MPT valve tail-piece, an externally threaded equipment port — the female adapter is the correct selection. When the component presents a female-threaded port into which a male end must be inserted, the male adapter applies.

At 1", this adapter occupies a high-frequency position in commercial and industrial Schedule 80 systems. The prevalence of 1" NPT connections across standard valves, pumps, strainers, meters, and equipment means the 835-010 is regularly encountered wherever a solvent-welded 1" PVC run must terminate at a threaded component presenting a male-threaded interface. It is a routine stocking item in any Schedule 80 installation or field service inventory and one of the most commonly specified adapters in the 835 sub-series.

The female adapter and male adapter are also frequently used together — paired on opposite sides of a threaded valve, union assembly, or equipment connection where both the inlet and outlet of the threaded component must be adapted back to solvent-welded PVC pipe. In these configurations, the 835-010 receives the male-threaded end coming out of the component while the 836-010 inserts into the female port on the same component, creating a complete slip-to-threaded-to-slip assembly at the valve or equipment body position.

Manufactured in dark gray Schedule 80 PVC, this adapter 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 in corrosive environments where metal adapters would corrode, scale, or seize on threads. NSF/ANSI 61 listing confirms suitability for potable water contact.

Rated to 450 psi at 73°F, this fitting handles standard to elevated pressure service across a wide range of fluid handling applications. For the slip socket end, clean and dry the pipe end and socket interior before application. Apply purple PVC primer to both mating surfaces, then apply a uniform coat of Schedule 80 PVC solvent cement to both surfaces before inserting the pipe. Hold with a slight quarter-turn twist for 30 seconds and allow full cure time per the cement manufacturer's temperature and humidity guidelines before pressurizing. Apply PTFE tape or compatible thread sealant to all male threads engaging the FPT end before assembly. Hand-tighten the male-threaded component plus one to two turns — do not over-torque, as excessive force risks cracking the female threads in the adapter body. Apply published pressure derating factors for service temperatures above 73°F.

Specifications:

Industries & Applications:

• Industrial Process Piping — Terminates a 1" Schedule 80 PVC solvent-welded process line at a male-threaded nipple, MPT valve tail-piece, externally threaded equipment port, or threaded instrument connection in chemical processing, water treatment, and manufacturing facility piping; a high-frequency adapter in any Schedule 80 system given the prevalence of 1" MPT-terminated components across standard industrial equipment and instrumentation
• Commercial Plumbing — Connects solvent-cemented 1" Schedule 80 PVC pipe runs to male-threaded nipple ends, MPT valve connections, threaded backflow preventer outlet ports, and externally threaded equipment fittings in mechanical rooms, utility chases, and building water distribution systems requiring Schedule 80 pressure performance
• Threaded Valve & Equipment Assemblies — Used in conjunction with the 836-series male adapter on the opposing side of threaded valve bodies, union assemblies, and process equipment connections — the 835-010 receives the MPT outlet of the component while the 836-010 inserts into the FPT inlet, creating complete slip-to-threaded-to-slip assemblies at valve and equipment body positions in Schedule 80 PVC systems
• Water & Wastewater Treatment — Provides a slip-to-FPT transition at male-threaded pump outlet nipples, filter vessel outlet ports, chemical dosing equipment connections, and threaded instrument fittings along 1" Schedule 80 PVC headers in municipal and industrial water treatment facilities
• Chemical Handling — Delivers a corrosion-resistant solvent-cement-to-FPT transition at externally threaded tank outlet fittings, reagent distribution nipple ends, chemical injection equipment ports, and recirculation loop threaded connections in systems handling acids, caustics, and aggressive process fluids where metal adapters would degrade or contaminate the fluid stream
• Irrigation & Agricultural Systems — Connects 1" Schedule 80 PVC pressure mains and laterals to male-threaded control valve outlets, filter housing exit ports, fertigation equipment nipple ends, and pump discharge nipples in high-pressure commercial irrigation, greenhouse, and agricultural water supply systems
• HVAC & Mechanical Systems — Used in PVC cooling tower makeup lines, glycol distribution systems, treated water headers, and chilled water drain piping where a 1" Schedule 80 slip-to-FPT adapter provides a schedule-consistent, corrosion-resistant transition from solvent-welded pipe to male-threaded mechanical system components