Strong arguments for superior jointing technology 1. Exposed heating coil for improved hold: FRIALEN safety fittings are designed with exposed heating coils. These provide consistent heat transfer during fusion and optimum homogenous connection of the materials. Other advantages include … fusion result is not affected by oxidic layer in the fitting symmetrical fusion ellipse excellent and fast bridging of gap. 2. Longer fusion zone for more bite: FRIALEN safety fittings have a longer fusion zone thus clearly exceeding the requirements by the European standard. This allows a considerably greater solidity and reliability of the fusion joint. Other advantages include … enlarged force transferring area greater installation safety higher long term solidity of the jointing. 3. Larger insertion depth for a perfect result: The larger insertion depth of the pipe ends inside the coupler contributes considerably to the reliability and safety of your pipe connections. FRIALEN safety fittings ensure that ... angle deviations are safely absorbed bending stresses are better compensated melt pressures are evenly built up.