Spears
PVC DWV Spigot Adapter (Cast Iron)
- SKU:
- P122
- Availability:
- Usually Ships Same Day
- Weight:
- 1.06 LBS
Description
PVC DWV Spigot Adapter (Cast Iron)
PVC DWV Spigot Adapter (Cast Iron) provides a transition between compatible PVC DWV piping and a compatible cast iron connection. The spigot-style adapter configuration is intended to provide the required connection interface where PVC DWV piping transitions to the specified cast iron piping arrangement.
The cast iron transition adapter configuration combines PVC DWV construction with a spigot-style connection interface for compatible adjoining components. Selection should account for nominal size, cast iron connection requirements, adjoining piping, joining method, alignment, support, and available installation clearance.
Product Highlights
- PVC construction
- DWV fitting design
- Spigot adapter configuration
- Cast iron transition
- Provides a piping interface transition
- Integrates into compatible DWV piping layouts
- Connects compatible PVC DWV and cast iron components
- Provides a compact transition between differing piping connection systems
Technical Specifications
| Product Type | Spigot Adapter |
|---|---|
| Material | PVC |
| System Type | DWV |
| Fitting Configuration | Cast Iron Transition Adapter |
| Connection Style | Spigot Adapter |
| Transition Interface | Compatible Cast Iron Connection |
| PVC Interface | Compatible PVC DWV Component |
| Connection Count | Two |
| Joining Method | Compatible Joining Method for Adjoining Materials |
| Piping Configuration | PVC DWV-to-Cast-Iron Transition |
| Primary Function | Transition Between Compatible PVC DWV and Cast Iron Piping Components |
| Selection Requirement | Match Nominal Size and Cast Iron Connection Interface |
Spigot Adapter Design
The spigot adapter configuration provides a transition point between compatible PVC DWV piping and the specified cast iron connection arrangement. This allows different piping materials or connection systems to meet within the same DWV layout.
The adapter should be positioned so both adjoining components align naturally before final assembly. Planning the transition helps coordinate pipe routing, insertion or engagement, nearby fittings, piping support, and available working clearance.
Cast Iron Transition
The cast iron transition interface is intended to connect with the corresponding compatible cast iron piping arrangement. The specific adjoining components should be confirmed before installation so the adapter configuration matches the intended connection method.
The connection should be assembled using the appropriate joining method for the adjoining materials and fitting interfaces. Correct alignment and compatible connection components help establish the transition without placing unnecessary stress on either piping material.
PVC DWV Integration
The PVC DWV construction allows the adapter to integrate into compatible drain, waste, and vent piping arrangements where a transition to cast iron is required. Matching the nominal size and connection interface to the adjoining components helps maintain the intended piping configuration.
Application suitability should be evaluated using the requirements of the complete DWV system. Adjoining materials, transition method, connection compatibility, piping support, slope where applicable, and local installation requirements should all be considered during fitting selection.
Material Transition Application
A PVC DWV Spigot Adapter for cast iron provides a compact transition between compatible piping materials and connection systems. This arrangement can be used where an existing or adjoining cast iron component must connect to PVC DWV piping.
Installation planning should consider nominal size, connection engagement, adjoining component alignment, nearby fittings, and available clearance. Both piping materials should be independently supported so the adapter is not relied upon to carry unnecessary external loads.
Installation & Selection Considerations
- Confirm the nominal size.
- Verify the cast iron connection interface.
- Check PVC DWV compatibility.
- Match both adjoining components correctly.
- Confirm alignment before final assembly.

Our PVC fitting specialists can help review your nominal size, DWV requirements, cast iron connection interface, adjoining piping materials, joining requirements, piping alignment, support requirements, and available installation clearance before you order.
Frequently Asked Questions
What is a PVC DWV Spigot Adapter for cast iron used for?
It provides a transition between compatible PVC DWV piping and a compatible cast iron piping connection.
What does DWV mean?
DWV refers to drain, waste, and vent piping applications.
Why is this called a spigot adapter?
The fitting uses the specified spigot-style adapter configuration as part of the transition between adjoining piping components.
Can this adapter connect PVC DWV to cast iron?
Yes. The product configuration is intended for a compatible PVC DWV-to-cast-iron transition when the adjoining interfaces and nominal sizes match.
Do both sides use the same joining method?
The appropriate joining method depends on the adjoining PVC DWV and cast iron connection interfaces used in the installation.
What should I confirm before ordering?
Confirm the nominal size, PVC DWV compatibility, cast iron connection interface, adjoining materials, and required joining method.
Important Ordering & Installation Notes
- Inspect both connection interfaces before use.
- Confirm the nominal connection size.
- Verify the cast iron transition interface.
- Support both adjoining piping materials.
- Confirm alignment before final assembly.