DELPHI FITTINGS
Part Number: 5406-P-Hollow
NPTF Pipe Hollow Hex Head Plug
Product Overview
The Delphi Fittings Part 5406-P-Hollow is an NPTF Pipe Hollow Hex Head Plug, designed to seal female NPTF (Dryseal) ports while offering the unique characteristic of a hollow body. This design makes it similar in external appearance and installation (via an external hex head) to a standard hex head plug, but its internal cavity allows for specific applications such as drainage, venting, or acting as a lightweight plug. Constructed from durable carbon steel with NPTF Dryseal threads, it ensures a reliable seal when fully engaged, with the added functionality provided by its hollow nature.
Key Features & Specifications
| Material | High-Grade Carbon Steel |
|---|---|
| Thread Type | Male NPTF (Dryseal) (ANSI B1.20.3, SAE J476) |
| Body Style | External Hexagonal Head with a Hollow Internal Cavity |
| Sealing Mechanism | NPTF Dryseal threads create a metal-to-metal seal at the thread flanks. The hollow nature is a design feature for specific applications beyond simple sealing. |
| Corrosion Protection | Standard Zinc Plating for enhanced durability. |
| Primary Function | To seal unused female NPTF threaded ports, with potential for use in drainage, venting, or lightweighting applications due to its hollow design. |
| Working Pressure | Suitable for various system pressures; suitability for specific pressures in venting/drainage applications should be carefully evaluated. |
| Temperature Range | Designed for typical operating temperatures in hydraulic/pneumatic systems. |
Commonly Available Sizes (Part #5406-P-Hollow Series)
Delphi Fittings offers the NPTF Pipe Hollow Hex Head Plug in various standard NPTF sizes. The internal bore diameter of the hollow section may vary by size and specific design. Common external thread sizes include (Male NPTF):
- 5406-P-Hollow-02: 1/8" NPTF Male
- 5406-P-Hollow-04: 1/4" NPTF Male
- 5406-P-Hollow-06: 3/8" NPTF Male
- 5406-P-Hollow-08: 1/2" NPTF Male
- 5406-P-Hollow-12: 3/4" NPTF Male
- 5406-P-Hollow-16: 1" NPTF Male
Note: This list indicates common plug sizes. For availability of other sizes, specific internal bore dimensions, or material options, please consult with our sales team.
Applications
The Part 5406-P-Hollow NPTF Pipe Hollow Hex Head Plug can be used in a variety of specialized scenarios:
- Sealing ports where controlled drainage of residual fluids is occasionally needed (e.g., by slightly loosening or in conjunction with another component).
- Applications requiring venting of pressure or air from a sealed chamber through the plug itself.
- Use as a lightweight plug where mass reduction is a concern.
- Protection of threaded ports during shipping or handling, where a fully solid plug is not required.
- Custom applications where the hollow cavity can be utilized for other purposes (e.g., housing a small sensor, acting as a guide).
- Standard port sealing where a hex head is preferred, and the hollow nature is not detrimental to the application.
Installation & Usage Guidelines
- Inspect both the male threads of the hollow plug and the female threads of the port to ensure they are clean and free from damage.
- Thread the plug into the port by hand to ensure correct alignment.
- Use an appropriately sized wrench on the external hex head to tighten the plug.
- NPTF Dryseal threads are designed to seal effectively. If the application involves fluid passage through the hollow center (e.g., for drainage/venting), the sealing integrity of the threads remains critical to prevent leakage around the plug.
- For applications relying on the hollow feature, ensure the design is compatible with system pressures and media.
- Avoid over-tightening, which could damage the plug or the port.
Why Choose Delphi Fittings Part 5406-P-Hollow?
- Versatile Design: Combines port sealing with the potential for drainage, venting, or other specialized uses due to its hollow construction.
- Easy Installation: External hex head allows for simple and secure tightening using standard wrenches.
- Reliable NPTF Seal: Ensures a dependable metal-to-metal seal at the threads when fully engaged.
- Durable Material: Manufactured from quality carbon steel for strength and longevity.
- Specialized Applications: Offers a solution for scenarios where a standard solid plug is not suitable.
- Quality Commitment: Produced under Delphi Fittings' ISO 9001:2015 certified quality management system.
Get a Quote for Part 5406-P-Hollow - NPTF Hollow Hex Head Plug
If your application requires an NPTF plug with a hollow design for drainage, venting, or other specific needs, contact Delphi Fittings. We provide competitive pricing for wholesale and bulk orders.
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