HDPE Transition Fitting | Female NPT × DIPS | Series 712 | SDR 7–17 | 2.5\\”–8\\”

The Series 712 Transition Fitting provides a reliable connection from Female NPT Thread to DIPS HDPE pipe. This listing covers the larger DIPS sizes (2.5\\”–8\\”), commonly used in municipal water and sewer applications. Designed for long-term reliability, these fittings deliver a leak-resistant seal that withstands pressure fluctuations and thermal expansion.

Each fitting is hydraulically compressed onto high-quality HDPE and cold-pressed into a steel or alloy coupling. This creates a high-tensile grip that resists pull-out and maintains sealing integrity even at zero internal pressure. Available in SDR 7, SDR 9, SDR 11, and SDR 17, these fittings are engineered with a 50-year design life and 2:1 safety factor at 73.4°F.

Need smaller sizes? View All Series 712 Transition Fittings Here

Key Features & Benefits

• Female NPT × DIPS HDPE Transition: Threads meet ANSI/ASME B1.20.1–2013 standards
• Leak-Resistant Mechanical Seal: Multi-barb grip and compression design secure under pressure
• Thermal & Pressure Performance: Maintains seal during expansion, contraction, and load changes
• Material Options: Carbon Steel (epoxy-coated), 304 Stainless Steel, 316 Stainless Steel, or C954 Aluminum Bronze
• Wide SDR Range: Available in SDR 7, 9, 11, and 17 for flexible system compatibility

Common Applications

• Municipal Water & Sewer Systems
• Utility Service Connections
• Geothermal Installations
• Industrial Process Piping
• Directional Drilling Conduit Terminations

Available Configurations (SDR 7–17, Large DIPS 2.5\\”–8\\”)

Available in 2.5\\”–8\\” DIPS sizes, four materials (Carbon Steel, 304 SS, 316 SS, Aluminum Bronze), and SDR 7, 9, 11, 17. See dropdown for full part numbers and configurations.

Series 712 HDPE Transition Fitting | Female NPT × DIPS | SDR 7 SDR 9 SDR 11 SDR 17 | Carbon Steel | 304 SS | 316 SS | Aluminum Bronze | Large Sizes 2.5\\”–8\\” | Water & Sewer Applications | Utility Pipe Supply