Product Details
General Details

Internal PVC couplings are PVC couplers that are inserted between two PVC pipes to create a seamless connection and lengthen the PVC pipe. Ideal for creating longer lengths of PVC pipe, these are ideal for when standard 40" or 60" pipe lengths are just not long enough. These couplings feature an internal fit male socket for securing pipe connections. Internal Couplers are pass-through, so cabling, wiring, and fluids can still be sent down the pipe. PVC cement is recommended for a secure bond between the pipes and coupling.
Design
The Internal Coupler has a 'flower' socket design that will accommodate the variations that frequent inner diameters of PVC pipe. This allows some flexibility if the pipe happens to have a smaller inner diameter. In most cases, the coupler has an extremely tight tolerance for connection.
Materials
Made from premium Structural Grade PVC resins, the internal coupler style and colors match perfectly with FORMUFIT PVC pipe, so connections appear virtually seamless. Couplers are UV-resistant and impact-proof to take the same impacts as all other FORMUFIT PVC products.
Product Use
Internal Couplers are perfect for lengthening pipe length past their original size. They are also excellent for making breakdown points in PVC pipe structures.
Securing
To secure it in place, insert the Internal Coupler at a slight angle and insert the insert fully, straight on. Tolerances are usually close enough that you don't need PVC cement, but they can be permanently bonded using PVC solvents for a complete fit.
Product Instructions
Internal Coupling Product Manual
You can view the generalized product instructions for this category by clicking the Download PDF button. Individual instructions are also on each product detail page.

Download Manual
Click the button below to download the step-by-step product instructions for the FORMUFIT Internal Coupling. You may need Adobe™ Acrobat Reader to view the PDF document on your computer or device.