Description
Schedule 40 PVC Adapter (INS x SPG)
Schedule 40 PVC Adapter (INS x SPG) provides a transition between a compatible insert-style connection and a PVC spigot connection. The adapter configuration supports connection between different piping interfaces while maintaining a compact Schedule 40 PVC fitting design.
The Insert x Spigot adapter configuration combines an insert connection on one end with a spigot connection on the opposite end. Selection should account for nominal size, connection compatibility, adjoining piping components, joining requirements, intended service conditions, system alignment, and available installation clearance.
Product Highlights
- PVC construction
- Schedule 40 design
- Adapter configuration
- Insert x Spigot connections
- Compact transition fitting
- Provides two different connection interfaces
- Spigot end fits a compatible socket connection
- Supports transitions between compatible piping components
Technical Specifications
| Product Type | Adapter |
|---|---|
| Material | PVC |
| Schedule | Schedule 40 |
| Configuration | Transition Adapter |
| Connection | Insert (INS) x Spigot (SPG) |
| Insert Interface | Compatible Insert Connection |
| Spigot Interface | Compatible Socket Connection |
| Connection Count | Two Connections |
| Adapter Function | Insert-to-Spigot Connection Transition |
| Primary Function | Transition Between Compatible Insert and PVC Socket Connections |
Adapter Design
The adapter configuration provides two different connection interfaces within a single compact PVC fitting. Its Insert x Spigot arrangement is intended for applications requiring a transition between compatible insert-style piping and a receiving PVC socket connection.
The adapter should be selected according to the nominal size and connection requirements of the adjoining components. Both connection interfaces should be verified before installation to help ensure the fitting matches the intended piping arrangement.
Insert Connection
The insert connection forms one side of the adapter and is intended for use with a compatible insert-style piping connection. The adjoining component and connection method should match the adapter's nominal size and insert configuration.
Installation requirements for the insert side should be determined by the compatible piping system and adjoining components being used. The connection should be properly assembled and supported according to the requirements of the complete installation.
Spigot Connection
The spigot connection is designed to fit into an appropriately sized compatible PVC socket. This provides a direct transition from the insert side of the adapter into a socket-style PVC connection.
The spigot and receiving socket should be clean, properly prepared, and compatible before joining. Appropriate PVC solvent-cement materials and installation procedures should be used where required for the socket connection.
Compact Connection Transition
A Schedule 40 PVC Insert x Spigot Adapter provides a straightforward transition where two different connection styles must be incorporated into the piping layout. Its compact configuration can help simplify the transition without requiring multiple separate fittings.
Application suitability should be evaluated using the requirements of the complete piping system. Nominal size, connection compatibility, adjoining materials, joining methods, service conditions, piping support, system alignment, and applicable installation practices should all be considered during selection.
Installation & Selection Considerations
- Confirm the nominal size.
- Verify INS x SPG configuration.
- Confirm insert-side compatibility.
- Check the receiving socket connection.
- Maintain proper piping alignment and support.

Our PVC fitting specialists can help review nominal size, Insert x Spigot configuration, adjoining piping components, connection compatibility, joining requirements, piping support, and available installation clearance before you order.
Frequently Asked Questions
What is a Schedule 40 PVC Insert x Spigot Adapter used for?
It provides a transition between a compatible insert-style connection and a receiving PVC socket connection.
What does INS x SPG mean?
INS x SPG identifies an Insert connection on one end of the adapter and a Spigot connection on the opposite end.
Where does the spigot end connect?
The spigot end is designed to fit into an appropriately sized compatible PVC socket connection.
What connects to the insert end?
The insert end is intended for an appropriately sized compatible insert-style piping connection.
Is the spigot connection solvent cemented?
The spigot end can be solvent-cement joined into a compatible PVC socket using appropriate PVC joining materials and installation procedures.
What should I confirm before ordering?
Confirm nominal size, INS x SPG configuration, insert-side compatibility, receiving socket size, adjoining piping components, and installation requirements.
Important Ordering & Installation Notes
- Confirm the nominal size.
- Verify INS x SPG configuration.
- Confirm insert-side compatibility.
- Inspect the spigot before installation.
- Confirm receiving socket compatibility.