Description
Schedule 80 One Piece Flange (FPT)
Schedule 80 One Piece Flange (FPT) provides a threaded-to-flanged transition for compatible Schedule 80 piping systems. The female pipe-threaded connection accepts an appropriately sized compatible male-threaded component, while the integrated flange provides the mating interface for connection to compatible flanged equipment, valves, fittings, or piping components.
The one-piece FPT flange configuration combines a fixed flange body and female-threaded hub within a single fitting. Selection should account for nominal size, Schedule 80 compatibility, mating male threads, flange compatibility, gasket requirements, bolt alignment, thread-sealing materials, adjoining component support, and available installation clearance.
Product Highlights
- FPT connection
- Schedule 80 design
- One-piece construction
- Fixed flange configuration
- Provides a threaded-to-flange transition
- Accepts a compatible male-threaded connection
- Combines a threaded hub and flange in one fitting
- Supports flanged connections within compatible Schedule 80 piping layouts
Technical Specifications
| Product Type | One Piece Flange |
|---|---|
| Schedule | Schedule 80 |
| Connection | Female Pipe Thread (FPT) |
| Fitting Configuration | One-Piece Flange |
| Threaded Interface | Compatible Male Pipe Thread |
| Flange Configuration | Fixed One-Piece Body |
| Connection Style | Female Thread x Flange |
| Thread Joining Method | Threaded Mechanical Connection |
| Flange Joining Method | Bolted Mechanical Connection |
| Piping Configuration | Threaded-to-Flange Transition |
| Assembly Style | Integrated Flange and Threaded Hub |
| Primary Function | Transition Compatible Schedule 80 Piping to a Flanged Connection |
One-Piece Flange Design
The one-piece flange configuration integrates the flange body and female-threaded hub into a single fitting rather than using a separate rotating flange ring. This fixed construction provides a direct transition between a compatible male-threaded piping connection and a mating flanged component within the Schedule 80 piping arrangement.
Because the flange body remains fixed relative to the threaded hub, the intended bolt-hole and flange-face orientation should be considered during installation planning. Establishing the required fitting position before final assembly helps coordinate the mating flange, gasket, fasteners, threaded connection, and adjoining piping without relying on the flange joint to correct misalignment.
Female-Threaded Connection
The Female Pipe Thread connection provides an internally threaded interface that accepts an appropriately sized compatible male pipe thread. Careful initial engagement is important so the mating threaded component enters squarely and follows the established thread path without being forced into the fitting at an improper angle.
The threaded connection should be assembled using practices and sealing materials appropriate for the piping system and intended service. Proper alignment and controlled tightening help establish the connection while reducing unnecessary mechanical loading caused by excessive force, improper thread engagement, or unsupported adjoining components.
Flanged Connection
The flanged interface allows the one-piece fitting to connect with a compatible mating flange using the appropriate gasket and flange fasteners. This mechanical connection provides a transition between the threaded piping side and compatible flanged equipment, valves, fittings, or other system components at the selected connection point.
The mating flange faces should approach one another in proper alignment before the fasteners are tightened. Correct gasket positioning and an even tightening sequence help distribute assembly forces around the joint while reducing unnecessary bending, twisting, or alignment loads on the fixed one-piece flange body.
Schedule 80 Piping Integration
A Schedule 80 One Piece Flange (FPT) provides a practical transition where a compatible male-threaded piping connection must terminate at a flanged joint. Its integrated construction combines the threaded hub and fixed flange interface into one component, simplifying the connection arrangement at the selected flange location.
Application suitability should be evaluated using the requirements of the complete piping system rather than the schedule designation alone. Mating flange compatibility, service conditions, thread compatibility, gasket selection, sealing materials, piping support, installation environment, and applicable practices should all be considered during flange selection.
Installation & Selection Considerations
- Confirm the nominal size.
- Verify the mating flange style.
- Match the mating male pipe thread.
- Check Schedule 80 system compatibility.
- Allow clearance for flange bolts and assembly.
Our fitting specialists can help review your nominal size, Schedule 80 requirements, female-threaded connection, mating male thread, flange configuration, gasket requirements, bolt alignment, sealing materials, adjoining piping support, and available assembly clearance before you order.
Frequently Asked Questions
What is a Schedule 80 One Piece Flange (FPT) used for?
It provides a transition between a compatible male-threaded piping connection and a mating flanged component within a Schedule 80 piping arrangement.
What does FPT mean?
FPT means Female Pipe Thread and identifies the internally threaded connection provided by the flange hub.
What does one-piece flange mean?
It means the threaded hub and flange body are integrated into a single fitting rather than using a separate rotating flange ring.
What connects to the FPT opening?
The FPT opening accepts an appropriately sized compatible male pipe-threaded component.
Does the flange rotate independently?
No. The one-piece flange body is fixed relative to the threaded hub, making installation orientation important during assembly.
Does the flange joint use a gasket?
A compatible gasket is typically positioned between the mating flange faces as part of the completed bolted flange connection.
Important Ordering & Installation Notes
- Inspect both interfaces before use.
- Center the gasket before bolting.
- Start the threaded connection carefully.
- Tighten flange fasteners evenly in sequence.
- Support adjoining piping independently of the flange.
