Schedule 80 PVC Male Spigot x FPT Reducer Bushings, 3" and 6" Sizes

Large-Diameter Schedule 80 PVC Spigot x FPT Reducer Bushings

Product Overview

Schedule 80 PVC reducer bushings with a smooth male spigot on the outside and female pipe thread (FPT) on the inside, available in two large-diameter sizes: 3" x 2-1/2" and 6" x 4". The spigot end solvent-welds into a socket fitting while the FPT end accepts a threaded pipe, valve, or instrument, bridging glued and threaded sections in Schedule 80 PVC pipe systems where larger line sizes are involved.

For 25 additional spigot x FPT sizes from 3/8" x 1/4" through 3" x 2", see the full Schedule 80 PVC reducer bushings listing.

Quick Specs

• Material: Schedule 80 PVC (gray)

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

• Available sizes: 3" spigot x 2-1/2" FPT, 6" spigot x 4" 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

• Two large-diameter sizes (3" and 6" spigot) that connect bigger pipe systems to threaded valves, meters, and instruments without stepping down through intermediate reducer fittings.

• Spigot end solvent-welds into socket fittings; FPT end accepts threaded components. Use Plastic Pipe Joint Kits for clean, professional solvent-weld connections on the spigot end.

• PVC handles sodium hypochlorite at concentrations up to 12.5%, plus acids, alkalis, and salts, with no coating or cathodic protection required.

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

Available Sizes

Need smaller sizes? The full spigot x FPT reducer bushings page stocks 25 combinations from 3/8" x 1/4" to 3" x 2". For threaded-to-threaded reductions, see Schedule 80 PVC MPT x FPT threaded reducer bushings.

Applications

• Distribution mains and header piping where large-diameter socket connections transition to threaded components

• Pump suction and discharge connections requiring threaded gauge or sensor ports

• Municipal water and wastewater treatment plant piping

• Large-bore chemical feed and industrial process piping

• Commercial plumbing where 3" or 6" PVC lines connect to threaded valves or instrumentation

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

Cleanflow Utility Supply Company is an authorized distributor with both 3" and 6" sizes in stock and shipping across Canada and the USA. Orders over $199 ship free, and every order includes 30-day returns. Volume discounts start at just 6 pieces when you mix and match across any Schedule 80 PVC fittings. Select your size above or contact us for bulk pricing.

Frequently Asked Questions

Why are these sizes listed separately from the main bushings page? 

Cleanflow stocks the most common spigot x FPT sizes (3/8" through 3" x 2") on the main page. The 3" x 2-1/2" and 6" x 4" combinations serve specialized applications and are stocked in limited quantities. Contact us if you need lead time or bulk availability details.

Do I need a different solvent cement for 6" PVC? 

For 6" and larger Schedule 80 PVC joints, use a heavy-body PVC cement rated for the pipe diameter. Apply PVC primer first, then cement. Follow the manufacturer's cure time before pressurizing the line.

What is the pressure rating on 6" Schedule 80 PVC? 

Pressure ratings decrease as diameter increases. At 73°F (23°C), 6" Schedule 80 PVC pipe is rated at approximately 280 psi. Derate for higher temperatures and factor in system conditions like water hammer. Refer to ASTM D2467 pressure tables for exact values by size.

Can I glue these into Schedule 40 socket fittings? 

Schedule 80 and Schedule 40 pipe share the same outside diameter, so the spigot end will physically fit a Schedule 40 socket. However, the system pressure rating drops to the weakest component. If your application requires Schedule 80 pressure ratings, use Schedule 80 fittings throughout.