Meet the Smith-Cooper 3/8 in. FPT X 3/8 in. D FPT Stainless Steel Cap — a rugged, lead-free solution designed to seal dual 3/8" ports with precision and lasting reliability. Crafted from corrosion-resistant stainless steel, this cap stands up to demanding environments, making it a smart choice for plumbing, hydraulic, and industrial applications where reliability matters.
Why this dual-end cap stands out
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Dual 3/8" FPT ends provide streamlined closure for two ports with a single component, reducing part count and installation time.
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Stainless steel construction delivers superior corrosion resistance and durability in demanding conditions, outperforming plated or softer metals over the life of the system.
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Lead-free design supports safety and compliance in systems where lead content matters, including sensitive or potable-related environments, without sacrificing strength.
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Service ratings include a maximum pressure of 300 psi and a maximum temperature of 300°F, making it suitable for a wide range of hydraulic, pneumatic, and general piping tasks.
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Bagged packaging ensures clean storage and easy handling on busy job sites.
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Standards-compatible fit designed to mate with standard 3/8" male pipe threads, offering straightforward integration into existing assemblies.
Practical uses and ideal applications
This cap is engineered for situations where two 3/8" ports must be safely sealed without a bulky assembly. Ideal buyers include maintenance technicians, field installers, OEM engineers, and DIY professionals working with hydraulic or plumbing lines. Use cases include:
- Sealing unused or test ports on dual-port manifolds during commissioning or maintenance
- Temporary closures in hydraulic and pneumatic test rigs
- Maintenance-friendly port protection in equipment housed in humid or corrosive environments
Specifications at a glance
- 3/8" FPT
- 3/8" FPT
- FPT
- FPT
- Stainless Steel
- 300 psi
- 300°F
- Bagged
- Cap
- Lead-Free
Installation guidance and best practices
- Ensure mating ports have clean, undamaged threads before installation.
- Use appropriate sealant rated for stainless steel on male threads (e.g., PTFE tape or pipe thread sealant) to ensure a secure, leak-free seal.
- Hand-tighten the cap onto each 3/8" male port, then apply a light final turn with a wrench. Avoid overtightening to prevent thread damage.
- Inspect for leaks after initial system pressurization and re-tighten if necessary, following standard safety procedures.
The Smith-Cooper 3/8 in. FPT X 3/8 in. D FPT Stainless Steel Cap delivers dependable, dual-port sealing in a compact, corrosion-resistant package. Its lead-free composition, robust temperature and pressure ratings, and easy integration with standard 3/8" male threads make it a practical, long-lasting choice for professionals who demand precision and reliability from every connection.
