(406 – 1219 MM)
MDK-ED pigs are equipped with durable guide discs, one at each end. The
guide discs provide a positive centering affect which allow the four
sealing discs in the center to effectively seal during the displacement
period. All Apache discs are manufactured from high quality polyurethane
and are available with a variety of wear resistant additives. Apache
has also developed a proprietary chemically-resistant urethane suited
specifically for severe environments such as hydrogen sulphide gas.