The Mudtight GOLD™ Towing Head was designed and developed in 2000. The aim was to solve the age old problem of sealing the pipe without adding too much bulk to the outside diameter of the pipe.
It's patented sealing cartridge seals on the inside of the pipe and is reversible so that it will seal on both SDR 11 and SDR 17.6 pipe. By using O rings of large cross section on IPS sizes, SDR 9 to SDR 32 pipe specifications can typically be sealed.
Tensile & Pressure testing confirms that the towing head grips beyond the yield strength of the pipe and is pressure tight up to bursting.