Description
Schedule 40 PVC Plug (SPG)
Schedule 40 PVC Plug (SPG) provides a compact closure for compatible PVC socket connections. The spigot end fits into an appropriately sized socket and is designed for solvent-cement joining to create a permanent termination within a compatible PVC piping system.
The Spigot plug configuration allows an open socket connection to be closed without adding a separate section of pipe and cap. Selection should account for nominal size, Schedule 40 PVC compatibility, receiving socket size, solvent-cement joining requirements, intended service conditions, piping alignment, and available installation clearance.
Product Highlights
- PVC construction
- Schedule 40 design
- Spigot plug configuration
- Single spigot connection
- Provides a compact socket closure
- Fits into a compatible PVC socket connection
- Designed for compatible PVC solvent-cement joining
- Provides a permanent termination for an open socket connection
Technical Specifications
| Product Type | Plug |
|---|---|
| Material | PVC |
| Schedule | Schedule 40 |
| Configuration | Spigot Plug |
| Connection | Spigot (SPG) |
| Spigot Interface | Compatible Socket Connection |
| Joining Method | Compatible PVC Solvent-Cement Joining |
| Connection Count | Single Connection |
| Plug Function | Socket Connection Termination |
| Primary Function | Close a Compatible PVC Socket Connection |
Spigot Plug Design
The spigot plug configuration provides a closed-end fitting designed to terminate an appropriately sized compatible PVC socket connection. Its spigot connection installs directly into the receiving socket, creating a compact closure without requiring an additional piece of pipe.
This arrangement can simplify permanent socket terminations while minimizing the number of components required. Nominal size, receiving socket dimensions, PVC compatibility, and intended service conditions should be confirmed before ordering.
Spigot Connection
The spigot connection provides the solvent-cement interface of the plug and is intended to fit into an appropriately sized compatible socket. Proper surface preparation and compatible PVC joining materials are important for establishing the intended permanent connection.
The receiving socket should be checked for correct nominal size and compatibility before assembly. The plug and socket should be clean, properly prepared, and aligned before solvent cement is applied.
Socket Connection Closure
The closed plug design provides a termination point for an open compatible PVC socket connection. Once properly solvent-cemented into the receiving socket, the plug becomes part of the permanent piping assembly.
The location of the plug should be considered during system planning, particularly where future piping modifications or access may be required. Adjoining components should also be properly supported to minimize unnecessary mechanical stress at the connection.
Compact PVC Termination
A Schedule 40 PVC Spigot Plug provides a straightforward and space-efficient method of closing an appropriately sized socket connection. The single spigot interface allows the plug to install directly into the receiving socket without requiring a separate cap assembly.
Application suitability should be evaluated using the requirements of the complete piping system rather than the Schedule 40 designation alone. Nominal size, PVC compatibility, joining materials, service conditions, piping support, system alignment, and applicable installation practices should all be considered during selection.
Installation & Selection Considerations
- Confirm the nominal size.
- Verify the spigot configuration.
- Check Schedule 40 PVC compatibility.
- Use compatible PVC solvent-cement joining materials.
- Confirm the receiving socket before installation.

Our PVC fitting specialists can help review nominal size, Schedule 40 requirements, spigot configuration, receiving socket compatibility, intended service conditions, joining requirements, piping support, and available installation clearance before you order.
Frequently Asked Questions
What is a Schedule 40 PVC Spigot Plug used for?
It provides a closed termination for an appropriately sized compatible PVC socket connection.
What does SPG mean?
SPG means spigot, indicating that the plug is designed to fit into an appropriately sized compatible socket connection.
Where does the spigot plug connect?
The spigot end fits directly into an appropriately sized compatible PVC socket.
How is the spigot connection joined?
The spigot connection is designed for compatible PVC solvent-cement joining using proper preparation and installation procedures.
Is this the same as a socket cap?
No. A spigot plug fits inside a compatible socket connection, while a socket cap accepts compatible PVC pipe inside its socket.
What should I confirm before ordering?
Confirm nominal size, Schedule 40 PVC requirements, spigot configuration, receiving socket compatibility, joining requirements, and installation conditions.
Important Ordering & Installation Notes
- Confirm the nominal size.
- Verify the spigot configuration.
- Inspect the spigot before assembly.
- Confirm compatibility with the receiving socket.
- Use compatible PVC solvent cement and procedures.