Pipe Fittings Hex Reducing Nipples Male NPT – 1/8", 1/4", 3/8", 1/2" – 10000 PSI – ASME B1.20.1 / SAE AS71051 / ISO 7-1 / ISO 228

Pipe Fitting

Also known as:

Pipe Connectors, Piping Fittings, Fittings

Pipe Fittings Hex Reducing Nipples Male NPT – 1/8", 1/4", 3/8", 1/2" – 10000 PSI – ASME B1.20.1 / SAE AS71051 / ISO 7-1 / ISO 228

Pipe Fitting

Also known as:

Pipe Connectors, Piping Fittings, Fittings

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Hex Reducing Nipples Male NPT connect two female-threaded pipes of different sizes and allow easy tightening with a wrench for high-pressure applications.

Executive Summary

Hex Reducing Nipples Male NPT are precision fittings designed to join two female-threaded pipes of different diameters while maintaining a secure, leak-resistant connection. The male tapered threads provide a tight seal, which is critical in high-pressure systems commonly used in the oil and gas industry, chemical processing, and instrumentation applications. These fittings are used when a reduction in pipe size is required without introducing additional joints, ensuring smooth flow and minimizing leak paths.

The fittings are compact, easy to install, and allow efficient tightening with a wrench, making them ideal for precise piping assemblies where space, pressure integrity, and reliability are essential.

Technical Specifications

Size Range 1/8” to 1/2”
Material SS 316, Brass, Carbon Steel
Temperature Range for Ratings -28 to 37°C (-20 to 100°F)
Pressure Ratings Based on ASME B31.3 at ambient temperature
Thread Engagement Standard ASME B1.20.1 for NPT threads
Internal Surface Burr-free
Cleaning Free from machine oils, loose particles, grease
Type Instrumentation and Process Control
Thread Protection Capped and properly packed
Recommended Seal PTFE tape for male tapered threads

Features and Benefits

  • Connects two female-threaded pipes of different diameters.
  • Manufactured from stainless steel, brass, and compatible alloys.
  • Hex shape allows secure tightening with standard wrenches.
  • Prevents fluid leakage in high-pressure systems.
  • Enables reliable pipe size reduction without additional joints.

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Detailed Description

Hex Reducing Nipples Male NPT are pipe fittings designed to connect two female-threaded pipes of different diameters while maintaining a secure and leak-resistant seal. The male tapered threads provide a tight connection that prevents fluid leakage, which is especially important in high-pressure systems.

These fittings are widely used in the oil and gas industry, chemical processing, and instrumentation applications where a reduction in pipe size is required without adding extra joints.

They are manufactured from high-quality materials such as stainless steel, brass, and other compatible alloys, ensuring durability and resistance to corrosion. The fittings are precision-machined from bar stock to provide burr-free internal surfaces for smooth flow and to reduce turbulence within the system. Threads are carefully capped and packed to prevent damage during transit.

Hex Reducing Nipples are rated for pressures up to 10,000 PSI and comply with ASME B1.20.1, SAE AS71051, ISO 7-1, and ISO 228 standards. They are designed for reliable performance in ambient temperatures from -28 to 37°C (-20 to 100°F) and support efficient installation with standard wrenches thanks to the hex shape, which allows secure tightening. These features make them suitable for high-pressure and instrumentation piping systems where both reliability and traceability are required.

Engineering Data