Schedule 80 PVC Male Spigot x FPT Reducer Bushings – 1/4" to 3" Sizes

Socket-Weld to Threaded Schedule 80 PVC Transition Fitting

Product Overview

These Schedule 80 PVC reducer bushings feature a smooth male spigot on the outside and a female pipe thread (FPT) on the inside, bridging solvent-weld socket fittings to threaded components in Schedule 80 PVC pipe systems. Available in 25 spigot x FPT size combinations from 3/8" x 1/4" to 3" x 2".

Quick Specs

• Material: Schedule 80 PVC (gray)

• Connection: Male spigot (outside) x FPT (inside)

• Size range: 3/8" spigot x 1/4" FPT through 3" spigot x 2" FPT

• Standard: ASTM D1784

• Certification: NSF-14

• Temperature range: 33°F (1°C) to 140°F (60°C)

• Thread type: NPT per ANSI/ASME B1.20.1

Key Features of Schedule 80 PVC Reducer Bushings

• Spigot x FPT configuration adapts socket-weld pipe and fittings to threaded valves, gauges, and instruments without additional transition fittings. For fully threaded connections, see Schedule 80 PVC MPT x FPT threaded reducer bushings.

• Schedule 80 wall thickness handles higher working pressures than Schedule 40, suitable for chemical feed and process piping systems.

• PVC construction resists corrosion and chemical attack from sodium hypochlorite, acids, alkalis, salts, and most waterworks chemicals.

• NSF-14 certified and manufactured to ASTM D1784 for use in potable water and municipal water treatment systems.

Available Sizes

Applications

• Sodium hypochlorite and chemical feed piping systems

• Municipal water and wastewater treatment plants

• Chemical dosing pump discharge connections

• Adapting threaded gauges, sensors, or valves into socket-weld piping runs

• Reverse osmosis and filtration system plumbing

• Industrial process piping where corrosion-resistant size transitions are required

Pair with Plastic Pipe Joint Kits for professional solvent-weld connections on the spigot end. Browse all Schedule 80 PVC fittings for couplings, tees, adapters, and other components.

Buy Schedule 80 PVC Spigot x FPT Reducer Bushings Online from Cleanflow

Cleanflow Utility Supply Company is an authorized distributor stocking 25 size combinations with free shipping on orders over $199. 30-day returns on all orders. Select your size above or contact us for volume pricing and availability. 

Frequently Asked Questions

What is the difference between a spigot x FPT bushing and an MPT x FPT bushing? 

A spigot x FPT bushing has a smooth outside that glues into a socket-weld fitting, with internal threads to accept a threaded pipe or component. An MPT x FPT bushing has external threads on the outside and internal threads on the inside. Use a spigot x FPT when transitioning from a glued system to a threaded connection.

Can these Schedule 80 PVC reducer bushings handle sodium hypochlorite? 

Yes. PVC resists sodium hypochlorite (bleach), acids, alkalis, and most chemicals used in water treatment. These bushings are commonly used in chlorine feed lines at concentrations up to 12.5%.

What is the maximum pressure rating? 

Pressure ratings vary by size and temperature. At 73°F (23°C), Schedule 80 PVC fittings handle approximately 140–630 psi depending on nominal pipe size and smaller sizes rate higher. Ratings decrease as temperature increases. Refer to ASTM D2467 pressure tables for specific values by size.

Should I use thread sealant tape or compound on PVC threads? 

Use a non-hardening, PTFE-based thread sealant compound rated for PVC. Apply sealant to the male thread only. Over-tightening threaded PVC connections can cause stress cracking hand-tightening plus one to two turns with a strap wrench.