HEX NIPPLE - NPT (REF. 5404)
HEX NIPPLE - NPT (REF. 5404)
The Hex Reducing Nipple – NPT (Ref. 5404) is a threaded pipe fitting designed to connect two female NPT-threaded components of different sizes, enabling a smooth transition between pipe diameters in a straight-line configuration. Its hexagonal center body provides a strong wrench grip for easy tightening and installation. Built for high-pressure and industrial-grade systems, this reducing nipple is widely used in oil & gas, chemical, petrochemical, power, and instrumentation applications. Available in a broad size range from 1/8” to 2” (Imperial) and 3mm to 50mm (Metric), it features NPT threads (ANSI B1.20.1) on both ends—one larger and one smaller. The fitting is manufactured using corrosion-resistant and durable materials such as Stainless Steel, Brass, Duplex, Monel, and Hastelloy, making it suitable for aggressive environments and demanding conditions.
- Reference Code: 5404
- Type: Reducing Nipple with Hex Body
- Connection: NPT male threads (different sizes on each end)
- Thread Standard: NPT (ANSI B1.20.1)
- Size Range: 1/8” to 2” and 3mm to 50mm
- Materials: Stainless Steel, Brass, Duplex, Monel, Hastelloy, and other alloys
- Hex center for wrench tightening
- Precision-machined for accurate thread engagement and sealing
- Conforms to global piping and pressure fitting standards
- Enables direct connection between two different NPT thread sizes
- Hex design ensures easy and secure installation
- Withstands high pressure, temperature, and corrosive conditions
- Ideal for compact, inline transitions in complex piping systems
- Reduces the need for multiple adapters or fittings
- Long-lasting and maintenance-free in tough industrial environments
| Part Number | T (NPT) | L (mm) | ∅ D (mm) | H (Inch) |
|---|---|---|---|---|
| PHN-2N | 1/8″ | 26.9 | 4.8 | 7/16 |
| PHN-4N | 1/4″ | 36.8 | 7.1 | 5/8 |
| PHN-6N | 3/8″ | 36.8 | 10.3 | 3/4 |
| PHN-8N | 1/2″ | 48.0 | 13.5 | 7/8 |
| PHN-12N | 3/4″ | 49.8 | 18.3 | 1.1/8 |
| PHN-16N | 1″ | 59.4 | 23.8 | 1.3/8 |
| PHN-20N | 1.1/4″ | 63.0 | 31.7 | 1.3/4 |
| PHN-24N | 1.1/2″ | 66.3 | 38.1 | 2 |
| PHN-32N | 2″ | 71.6 | 49.2 | 2.1/2 |