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Female NPT Adapter
The 304 Stainless Steel Female NPT Adapter is designed to transition from press-fit connections to standard male-threaded NPT components in industrial piping systems. Contractors use this adapter to integrate valves, gauges, or threaded pipe sections into AP Stainless press systems. Its corrosion-resistant stainless steel construction ensures long-term durability and leak-free performance in demanding environments. Installation is quick and flameless—simply press one end into the system and thread the other onto a compatible male NPT fitting using standard tools and sealant. Ideal for water, steam, air, and chemical applications, this adapter simplifies system integration and future modifications.

Key Features
- Proven Technology: Simple and robust connection ensures long-term system reliability.
- Flameless Installation: Clean, safe assembly reduces installation and repair time.
- Cost Efficiency: Achieve over 50% reduction in traditional installation costs.
- Vibration Absorption: Elastomeric connections absorb vibration, thermal expansion, and contraction.
- Corrosion Resistance: Chromium dioxide layer protects against harsh environments.
- Fluid Integrity: No risk of contamination to conveyed fluids.
- UV Stability: No degradation from UV exposure.
- Low Expansion: Thermal expansion factor of only 16, ensuring dimensional stability.
Size Range
Available in 1/2″ to 3″, each adapter is supplied with (2) Union Connectors for secure and efficient installation.
Material
- 304 Stainless Steel: Hygienic, durable, and corrosion-resistant for long-term use in industrial environments.
Seal Options
- Valve Body Seal: PTFE for excellent chemical resistance and high-temperature performance.
Applications
- Compressed Air / Inert Gases: Ideal for corrosive environments and food-grade systems
- Chemical Handling: Excellent corrosion resistance
- Cooling Systems: Coolers, cooling towers, and chillers (glycol-based)
- Process Water: Reliable in industrial water systems
- Oils: Suitable for cutting fluids and lubricants
- Power Generation: Built to perform in demanding energy sector conditions
Certifications
- ASME B31.1, ASME B31.3, ASME B31.9
- ASTM A312
- ISO 8573-1
- ISO 9001, ISO 14001
Warranty
-
- 10-Year Warranty on all AP Stainless fittings

Additional information
Weight
1.74 lbs
Pipe to Female NPT Adapter
16mm (1/2") Pipe to (1/2") Female NPT, 16mm (1/2") Pipe to (3/4") Female NPT, 20mm (3/4") Pipe to (1/2") Female NPT, 20mm (3/4") Pipe to (3/4") Female NPT, 20mm (3/4") Pipe to (1") Female NPT, 25mm (1") Pipe to (1/2") Female NPT, 25mm (1") Pipe to (3/4") Female NPT, 25mm (1") Pipe to (1") Female NPT, 25mm (1") Pipe to (1-1/4") Female NPT, 32mm (1-1/4") Pipe to (1") Female NPT, 32mm (1-1/4") Pipe to (1-1/4") Female NPT, 32mm (1-1/4") Pipe to (1-1/2") Female NPT, 40mm (1-1/2") Pipe to (1-1/4") Female NPT, 40mm (1-1/2") Pipe to (1-1/2") Female NPT, 50mm (2") Pipe to (1-1/2") Female NPT, 50mm (2") Pipe to (2") Female NPT, 63mm (2-1/2") Pipe to (2-1/2") Female NPT, 80mm (3") Pipe to (2-1/2") Female NPT
Color
Blue, Silver Metallic
Features
High Flow
Pressure
188 PSI, 1mbar/0.03inhg (Full industrial vacuum), 200 PSI
Connection
Press, Threaded
Temperature
EPDM -4°F to +248°F
Material
Stainless Steel
AP Stainless Certification
ASME, CE, EN, ISO 14001, ISO 45001, ISO 9001, TS, TUV, UL, ASME B31.1, ASME B31.3, ASME B31.9, ASTM A312, ISO 8573-1, ISO 9001, ISO 14001