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NPTF Pipe 45° Street Elbow (Stainless Steel) - Part 5503-SS

Part Number: 5503-SS

NPTF Pipe 45° Street Elbow (Stainless Steel)

Product Overview

The Delphi Fittings Part 5503-SS is a 45° Street Elbow, designed to provide a compact, angled connection between a male and a female NPTF (National Pipe Taper Fuel / Dryseal) threaded connection. This fitting features one male NPTF thread and one female NPTF thread, which eliminates the need for an additional pipe nipple and allows for tighter routing. Manufactured from premium stainless steel (typically Grade 316 SS), this elbow offers exceptional resistance to corrosion, chemicals, and extreme temperatures, making it an excellent choice for demanding applications in marine, chemical processing, food and beverage, and other harsh environments.

Key Features & Specifications

Material High-Grade Stainless Steel (Typically 316 SS for superior corrosion resistance)
End 1 Configuration Male NPTF Pipe (Dryseal) (conforming to ANSI B1.20.3 / SAE J476)
End 2 Configuration Female NPTF Pipe (Dryseal) (conforming to ANSI B1.20.3 / SAE J476)
Angle 45 Degrees
Body Style 45° Street Elbow, typically with hex features for wrench tightening.
Galling Warning: Stainless steel threads are prone to galling (cold-welding). Using a thread lubricant or anti-galling paste compatible with stainless steel is highly recommended to prevent thread damage during assembly.

Commonly Available Sizes (Part #5503-SS Series)

Delphi Fittings offers the 5503-SS Stainless Steel NPTF 45° Street Elbow in a range of common nominal pipe sizes, with both ends typically being the same size.

Examples include (Male NPTF x Female NPTF):

  • 5503-02-SS: 1/8" NPTF x 1/8" NPTF
  • 5503-04-SS: 1/4" NPTF x 1/4" NPTF
  • 5503-06-SS: 3/8" NPTF x 3/8" NPTF
  • 5503-08-SS: 1/2" NPTF x 1/2" NPTF

Note: For unlisted sizes, different stainless steel grades (e.g., 304), or other custom requirements, please contact our sales team.

Applications

The Part 5503-SS Stainless Steel 45° Street Elbow is ideal for:

  • Creating a compact 45-degree connection between a male pipe/fitting and a female port without needing a separate nipple, perfect for tight spaces.
  • Use in marine and offshore hydraulic systems, chemical processing plants, food and beverage facilities, pharmaceutical production, and water treatment systems where corrosion resistance is paramount.
  • Routing pipes or lines at a 45-degree angle close to walls or equipment.
  • Providing a strong, durable, and leak-resistant angled connection for stainless steel piping systems.

Installation & Usage Guidelines

  • Ensure all mating threads 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 of this elbow and the mating male fitting. If connecting to standard NPT ports, a compatible sealant (like PTFE tape) is also required.
  • Thread the male end of the elbow into the mating female port and orient it to the desired 45-degree angle.
  • Thread the mating male fitting into the female end of the elbow.
  • Use appropriate wrenches on the hex body of the elbow and on the mating fitting to tighten securely and achieve a leak-proof seal. Avoid over-tightening.

Why Choose Delphi Fittings Part 5503-SS?

  • Superior Corrosion Resistance: Manufactured from high-grade stainless steel (typically 316 SS), offering maximum durability in harsh environments.
  • Compact 45° Connection: The male x female "street" design eliminates the need for an additional nipple, saving space and reducing a potential leak path while providing a smoother bend than a 90° elbow.
  • 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 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 5503-SS - NPTF Pipe 45° Street Elbow (Stainless Steel)

For durable, corrosion-resistant, and space-saving 45-degree connections in your NPT/NPTF systems, the Part 5503-SS Stainless Steel Street Elbow is an excellent choice. Contact Delphi Fittings today for wholesale pricing, bulk order information, and expert technical support.

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