Series 504 HDPE Caps with Female NPT
The Poly-Cam Female Header Fitting (Series 799) is a barbed mechanical design fitting which is hydraulically compressed into the polyethylene or pipe quality copolymer material. The fitting is fused onto the HDPE butt fusion end cap and includes a compression ring for reinforcement.
Relaxation of the pipe creates a seal to prevent leakage. Under pressure, the internal pressure within the pipe increases the sealing surface area on the barb. Under zero internal pressure, the compression and tensional strain created by the compression of the multi-level barbs are greater than the stress created by relaxation and/or thermal expansion and contraction. As the internal pressure increases, the connection between the pipe material and transition fitting increases.
- Sizes range from .5 to 2” NPT.
- All National Pipe Threads are made to ANSI/ASME B1.20.1 – 2013.