ADVANCED PIPE PRODUCTS & SERVICES

APP has a complete line of HDPE bells designed for the Corrugated pipe industry.  With over 31 different variations in bell configurations, these HDPE bells will fit almost any corrugated pipe in the North American market. 

Injection molded bells have high tolerances which ensures a consistent fit.

Injection molded bells are ideally suited for fabricated fittings and short length of irregular lengths of pipe.

APP injection molded bells are designed to utilize flange welding technology.  Flange welding technology is ideally suited for high production rates, structural integrity and fusion repeatability.  What makes this technology unique is that it is designed to weld to the HDPE wall inside a pipe corrugation.  This material is structurally designed for loads and is shielded from ultraviolet radiation, therefore oxidation of the surface is not an issue.  Welding is accomplished by cutting away the corrugation on the end needing a bell and welding directly to the corrugation sidewall.  A detailed drawing of the weld is shown below:

APP Injection Molded Bell Key Benefits

• Injection molded bells available for 6" to 36" nominal diameter corrugated HDPE pipe.
• Use standard production gaskets in many cases.
• Custom "adaptor gaskets" available for watertight fit.
• Designed for 13 psi watertight seals.
• Design to accommodate high reliable spin welding technology.

APP Bell Bell Couplers

APP also offers a select group of bell-bell couplers.  Contact APP for more details.