Standard Female NPT Transition Fitting | IPS | HDPE to Steel | SDR 7–11 | 200–355 PSI
Standard Female NPT Transition Fitting | IPS | HDPE to Steel | SDR 7–11 | 200–355 PSI
Integrity Fusion Standard Female NPT Transition Fittings provide a secure, high-performance connection between HDPE and threaded steel piping systems. Each fitting is precision-machined to ANSI/ASME B1.20.1 standards and available in epoxy-coated carbon steel, 304 stainless steel, or 316 stainless steel transition collars. Designed for SDR 7, 9, and 11 HDPE pipe systems, these fittings deliver reliable, leak-resistant performance up to the maximum allowable operating pressure (MAOP) of the connected pipe.
The internal HDPE extension passes completely through the steel collar, creating a piggable, corrosion-resistant bore that maintains full protection against electrochemical and environmental corrosion. Ideal for municipal water, wastewater, geothermal, industrial, and mining applications, these fittings meet or exceed ASTM and AWWA standards for long-term reliability.
Key Features & Benefits
- Heavy-Duty NPT Threads — Machined to ANSI/ASME B1.20.1 for durable, leak-free mechanical joints.
- Full HDPE Extension — Ensures a corrosion-free, piggable internal bore and long service life.
- Pressure Rated for SDR 7–11 — Supports MAOP ranges from 200 PSI (SDR 11) up to 355 PSI (SDR 7).
- Material Options — Available with epoxy-coated carbon steel, 304 SS, or 316 SS collars.
- Industry Compliant — Meets ASTM D3261, F1598, F1599, AWWA C901/C906, and NSF/ANSI 61 & 372 standards.
Typical Applications
- Municipal Water and Wastewater Systems
- Oilfield, Mining, and Process Lines
- Geothermal and Industrial Systems
- Irrigation, Landfill, and Dredging Operations
Product Dimensions & Specifications
| Nominal Size | SDR | MAOP (PSI @ 73.4°F) | Material | A Thread Dia (in.) | B Thread Length (in.) | C HDPE OD (in.) | D Collar Length (in.) | E Exposed HDPE (in.) | Weight (lbs.) | Item Code |
|---|---|---|---|---|---|---|---|---|---|---|
| ¾” IPS | 11 | 200 | Epoxy | 304 SS | 316 SS | 1.240 | 0.70 | 1.050 | 2.20 | 5.80 | ~1 | 400500 – 400502 |
| 1” IPS | 7 / 9 / 11 | 200 – 355 | Epoxy | 304 SS | 316 SS | 1.485 | 0.91 | 1.315 | 2.60 | 5.40 | ~1 | 400503 – 400508 / 400640 – 400642 |
| 1¼” IPS | 7 / 9 / 11 | 200 – 355 | Epoxy | 304 SS | 316 SS | 1.900 | 0.89 | 1.660 | 3.40 | 4.60 | ~2 | 400509 – 400514 / 400643 – 400645 |
| 1½” IPS | 11 | 200 | Epoxy | 304 SS | 316 SS | 2.250 | 0.85 | 1.900 | 3.40 | 4.60 | ~2 | 400515 – 400615 |
| 2” IPS | 7 / 9 / 11 | 200 – 355 | Epoxy | 304 SS | 316 SS | 2.750 | 1.00 | 2.375 | 3.40 | 4.60 | ~3 | 400517 – 400525 |
| 3” IPS | 7 / 9 / 11 | 200 – 355 | Epoxy | 304 SS | 316 SS | 4.144 | 1.62 | 3.500 | 4.38 | 3.62 | ~4 | 400526 – 400534 |
| 4” IPS | 7 / 9 / 11 | 200 – 355 | Epoxy | 304 SS | 316 SS | 5.160 | 1.88 | 4.500 | 4.62 | 7.38 | ~8 | 400535 – 400543 |
Installation Note: Apply Teflon tape or approved sealant to threads. Hand-tighten, then use two strap wrenches only — never pipe wrenches. Always pressure test before backfilling.