Spears
Schedule 80 CPVC Reducer Bush (SPG x FPT)
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Schedule 80 CPVC Reducer Bush (SPG x FPT)
Schedule 80 CPVC Reducer Bush (SPG x FPT) provides a compact transition between a compatible CPVC socket connection and a smaller male-threaded component. The fitting combines a spigot exterior with a Female Pipe Thread connection in a reducing bushing configuration.
The Schedule 80 CPVC reducer bush is designed to install directly into a compatible CPVC socket while providing a reduced female-threaded connection. Selection should account for both nominal sizes, receiving socket compatibility, male-thread compatibility, system conditions, and proper CPVC installation procedures.
Product Highlights
- CPVC construction
- Schedule 80 design
- Reducer bush configuration
- SPG x FPT connections
- Spigot exterior interface
- Female-threaded reduced connection
- Provides a compact size transition
- Combines solvent-cement and threaded joining
Technical Specifications
| Product Type | Reducer Bush |
|---|---|
| Material | CPVC |
| Schedule | Schedule 80 |
| Configuration | Spigot x Female-Threaded Reducing Bush |
| Connection | Spigot (SPG) x Female Pipe Thread (FPT) |
| Spigot Interface | Compatible CPVC Socket |
| Thread Interface | Compatible Male Pipe Thread |
| Size Transition | Different Nominal Connection Sizes |
| Joining Method | CPVC Solvent-Cement x Threaded Connection |
| Primary Function | Reduce a Compatible CPVC Socket to a Female-Threaded Connection |
Reducer Bush Design
The reducer bush design combines a spigot exterior with a smaller female-threaded connection. This allows a compatible CPVC socket to transition directly to a reduced male-threaded component.
Both nominal connection sizes should be confirmed before ordering because the larger spigot and smaller threaded connection serve different roles. Correct fitting orientation should be established before installation.
Spigot Connection
The spigot connection is designed to fit directly into an appropriately sized compatible CPVC socket. This provides the solvent-cement side of the reducing transition.
The spigot surface and receiving socket should be clean and properly prepared before joining. Compatible CPVC primer, solvent cement, insertion procedures, and required cure times should be followed.
Female Threaded Connection
The Female Pipe Thread connection accepts an appropriately sized compatible male-threaded component. This creates the reduced threaded side of the fitting.
Threads should be clean and properly aligned before assembly. Appropriate threaded plastic-piping procedures and compatible sealing materials should be used while avoiding excessive tightening.
Schedule 80 CPVC Application
A Schedule 80 CPVC Reducer Bush SPG x FPT provides a compact transition between a larger CPVC socket and a smaller male-threaded component. The nested design can reduce the need for multiple separate transition fittings.
System temperature, pressure, fluid compatibility, thread compatibility, solvent-cement requirements, and applicable installation procedures should be reviewed for the intended application. Proper piping support should be maintained around the transition.
Installation & Selection Considerations
- Confirm both nominal sizes.
- Verify the SPG x FPT configuration.
- Confirm receiving socket compatibility.
- Check male-thread compatibility.
- Avoid excessive threaded tightening.

Our piping specialists can help review both nominal sizes, receiving socket compatibility, male-thread compatibility, CPVC joining requirements, and installation considerations before you order.
Frequently Asked Questions
What is a Schedule 80 CPVC Reducer Bush used for?
It provides a compact transition between a compatible CPVC socket and a reduced male-threaded component.
What does SPG x FPT mean?
It means the fitting has a spigot exterior and a Female Pipe Thread connection.
What connects to the spigot end?
The spigot portion is designed to fit into an appropriately sized compatible CPVC socket.
What connects to the FPT connection?
The Female Pipe Thread connection accepts an appropriately sized compatible male-threaded component.
Does this fitting use two joining methods?
Yes. The spigot connection uses compatible CPVC solvent-cement joining while the FPT side uses a threaded connection.
What should I confirm before ordering?
Confirm both nominal sizes, SPG x FPT configuration, receiving socket size, mating male thread, and system requirements.
Important Ordering & Installation Notes
- Confirm both nominal sizes.
- Verify the SPG x FPT configuration.
- Confirm receiving socket compatibility.
- Check mating thread compatibility.
- Use compatible CPVC joining procedures.