In 1976, Perfection revolutionized natural gas distribution with the introduction of the first polyethylene, mechanical coupling...Permasert®. Now Perfection has answered an industry need by developing the first large diameter plastic mechanical couplings for joining and repairing gas mains... Permasert XL. These new couplings offer the same benefits as Permasert couplings - non-corrosive, easy to install, and provide the security of knowing you’ve made a safe, gas-tight connection. Permasert XL couplings are available in varying sizes for joining PE-to-PE, Steel-to-PE, PVC-to-PE and Cast Iron-to-PE gas mains.

Benefits of Non-Corrosive Couplings:

• Plastic construction with 304 series stainless hardware


• No cathodic protection required under DOT 192 guidelines


• No special coating, tarring, or wrapping of the fitting required


• Saves the expense of an anode


• Saves labor cost of anodic cell monitoring and maintenance


• Confidence you're not degrading the system with a metallic fitting

Additional Benefits:

• Fast and easy installation, requires only one person


• Total installed cost savings compared to alternative methods


• No special equipment required


• Coupling does not need to be disassembled for installation


• Excavation sites can be significantly reduced


• Accommodates out-of-round and misaligned pipe ends — excellent alternative to electrofusion for main repairs


• Wide range of sizes (2" ­ 8")


• Design qualified for joining PE gas pipe (2406 and 3408) to PE pipe, steel pipe and cast iron pipe


• Configuration for joining Rilsan PA-11


• All weather installation