Description
Schedule 40 PVC Union (FPT x FPT) EPDM
Schedule 40 PVC Union (FPT x FPT) EPDM provides a serviceable connection between compatible male-threaded piping components while allowing the connection to be separated without disturbing the adjoining piping. The Female Pipe Thread x Female Pipe Thread configuration uses threaded connections on both ends with an EPDM O-ring providing the union seal.
The Schedule 40 PVC threaded union design is useful where future disassembly, maintenance, equipment access, or piping changes may be required. Selection should account for nominal size, male-thread compatibility, EPDM seal compatibility, adjoining components, system conditions, and proper threaded installation procedures.
Product Highlights
- PVC construction
- Schedule 40 design
- EPDM O-ring seal
- FPT x FPT connections
- Serviceable union configuration
- Allows connection separation
- Accepts compatible male pipe threads
- Designed for serviceable threaded piping connections
Technical Specifications
| Product Type | Union |
|---|---|
| Material | PVC |
| Schedule | Schedule 40 |
| Configuration | Threaded Union |
| Connection | Female Pipe Thread (FPT) x Female Pipe Thread (FPT) |
| Thread Interfaces | Compatible Male Pipe Threads |
| O-Ring Material | EPDM |
| Joining Method | Threaded Connections with Union Joint |
| Union Function | Serviceable Threaded Piping Connection |
| Primary Function | Connect and Allow Separation of Compatible Threaded Piping Components |
Threaded Union Design
The threaded union configuration creates a serviceable connection between compatible male-threaded piping components. The center union joint can be separated after installation, providing access to adjoining piping or equipment without cutting the piping system.
The union should be installed where sufficient clearance is available for future access and disassembly. Proper alignment is important so the threaded connections and union joint can be assembled without placing unnecessary mechanical stress on the PVC fitting.
Female Threaded Connections
The FPT x FPT connections are designed to accept appropriately sized compatible male pipe threads. This threaded configuration provides a removable connection method on both sides of the serviceable union joint.
Thread size and compatibility should be confirmed before installation. Connections should be assembled using appropriate threaded PVC procedures while avoiding excessive tightening that could place unnecessary stress on the union body.
EPDM O-Ring Seal
The EPDM O-ring provides the sealing element at the center union joint. The O-ring should remain clean, properly positioned, and correctly seated during assembly so the mating union surfaces can come together as intended.
EPDM compatibility should be reviewed against the fluid and operating conditions of the intended system. The O-ring should also be inspected whenever the union is disassembled and replaced when its condition no longer supports a reliable seal.
Serviceable Threaded Connection
A Schedule 40 PVC Threaded Union provides a convenient separation point where piping or equipment may require maintenance, replacement, or periodic access. The center joint can be disconnected while the threaded union ends remain installed on the adjoining components.
This serviceable configuration can simplify future piping work compared with a connection that must be removed by cutting or extensively disassembling nearby components. Adequate access should be maintained around the union for future operation and inspection.
Installation & Selection Considerations
- Confirm the nominal size.
- Verify FPT x FPT connections.
- Confirm EPDM seal compatibility.
- Avoid excessive threaded tightening.
- Maintain proper piping alignment and support.
Our PVC fitting specialists can help review nominal size, FPT x FPT connections, EPDM seal compatibility, adjoining threaded components, service requirements, and installation considerations before you order.
Frequently Asked Questions
What is a Schedule 40 PVC FPT x FPT Union used for?
It connects compatible male-threaded piping components while providing a serviceable center joint that can be separated for maintenance, equipment access, or piping changes.
What does FPT x FPT mean?
FPT x FPT means the union has a Female Pipe Thread connection on each end designed to accept compatible male pipe threads.
What type of O-ring does this union use?
This union uses an EPDM O-ring as the sealing element at the serviceable center union joint.
Can the union be disconnected after installation?
Yes. The center union joint is designed to be separated while the threaded ends remain connected to the adjoining piping components.
How should the threaded connections be installed?
Use appropriate threaded PVC installation procedures and compatible sealing materials while avoiding excessive tightening that could stress the PVC union.
What should I confirm before ordering?
Confirm the nominal size, FPT x FPT configuration, male-thread compatibility, EPDM seal compatibility, and requirements of the intended piping system.
Important Ordering & Installation Notes
- Confirm the nominal size.
- Verify FPT x FPT connections.
- Confirm EPDM compatibility.
- Inspect the O-ring before assembly.
- Avoid excessive tightening of PVC threads.
