Calibration Tubes & Bladders

Calibration tubes and inflatable bladders are essential components used during liner installation in trenchless pipe rehabilitation systems such as Cured-in-Place Pipe. Inserted inside the resin-impregnated liner, they are inflated to press the liner firmly against the host pipe during steam, hot-water, or UV curing processes, ensuring uniform pressure and reliable installation results. We provide calibration tubes tailored to project requirements, with customization available for length, diameter, wall thickness, and material type to suit different installation systems and pipe sizes.