DELPHI FITTINGS
Part #: 5406C-SS
NPTF Pipe Cap (Stainless Steel)
Product Overview
The Delphi Fittings Part 5406C-SS is a high-quality pipe cap designed to securely seal the end of a male NPT (National Pipe Taper) or NPTF (Dryseal) pipe or fitting. This cap is manufactured from premium stainless steel (typically Grade 316 SS) for superior resistance to corrosion, chemicals, and extreme temperatures. It features internal female NPTF (Dryseal) threads that create a reliable metal-to-metal seal with a mating male NPTF fitting, making it an excellent choice for demanding applications in marine, chemical processing, food and beverage, and other harsh environments. The cap typically has a hexagonal or square external shape for easy tightening with a wrench.
Key Features & Specifications
| Material | High-Grade Stainless Steel (Typically 316 SS for superior corrosion resistance) |
|---|---|
| Configuration | Female NPTF Pipe (Dryseal) Cap (conforming to ANSI B1.20.3 / SAE J476) |
| Head Style | External Hexagonal or Square Head for wrench tightening. |
| Sealing Mechanism | NPTF Dryseal threads are designed to create a metal-to-metal seal when mated with a male NPTF fitting. If connecting to a standard NPT male fitting, the use of a compatible thread sealant on the male NPT threads is required for optimal sealing. |
Commonly Available Sizes (Part #5406C-SS Series)
Delphi Fittings offers the 5406C-SS Stainless Steel NPTF Pipe Cap in a range of common nominal pipe sizes.
Examples include (NPTF Cap Size):
- 5406C-02-SS: 1/8" NPTF Pipe Cap
- 5406C-04-SS: 1/4" NPTF Pipe Cap
- 5406C-06-SS: 3/8" NPTF Pipe Cap
- 5406C-08-SS: 1/2" NPTF Pipe Cap
- 5406C-12-SS: 3/4" NPTF Pipe Cap
- 5406C-16-SS: 1" NPTF Pipe Cap
Note: For unlisted sizes, different stainless steel grades (e.g., 304), or other custom requirements, please contact our sales team.
Applications
The Part 5406C-SS Stainless Steel Pipe Cap is ideal for:
- Securely sealing the end of an open male NPTF or NPT pipe or fitting in systems operating in corrosive or high-purity environments.
- Use in marine and offshore hydraulic systems, chemical processing plants, food and beverage facilities, pharmaceutical production, and water treatment systems.
- Preventing fluid leakage and protecting the system from contamination at unused termination points.
Installation & Usage Guidelines
- Ensure the male NPT/NPTF threads to be capped and the female NPTF threads of the cap are meticulously clean and free from any damage or contaminants.
- It is highly recommended to apply a thread lubricant or anti-galling paste suitable for stainless steel to the male threads. If mating with standard NPT male threads, a compatible sealant (like PTFE tape) is also required.
- Thread the cap onto the male pipe or fitting by hand until snug.
- Use an appropriately sized wrench on the external hex or square head to tighten the cap to the recommended specification, ensuring a secure and leak-proof seal. Avoid over-tightening.
Why Choose Delphi Fittings Part 5406C-SS?
- Superior Corrosion Resistance: Manufactured from high-grade stainless steel (typically 316 SS), offering maximum durability in harsh environments.
- Reliable Sealing: NPTF Dryseal threads provide a robust metal-to-metal seal, minimizing the risk of leaks in critical applications.
- Durable Construction: The solid, one-piece cap design ensures high mechanical strength and integrity.
- Wide Chemical & Temperature Compatibility: Stainless steel is suitable for a broader range of fluids and temperatures than carbon steel.
- Standard Compliance: Conforms to ANSI B1.20.3 / SAE J476 standards.
- Quality-Assured Manufacturing: Produced under Delphi Fittings' rigorous ISO 9001:2015 certified quality management system.
Get a Quote for Part 5406C-SS - NPTF Pipe Cap (Stainless Steel)
For a durable, corrosion-resistant, and secure seal for your male NPT/NPTF pipe ends, the Part 5406C-SS Stainless Steel Pipe Cap is an excellent choice for your demanding applications. Contact Delphi Fittings today for wholesale pricing, bulk order information, and expert technical support.
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