• NOV Washpipe

    National Oilwell Varco, in alliance with Deublin Company, manufacturer of precision rotating unions, has designed the next generation of washpipe systems. The NOV Washpipe System* is a patented design that utilizes a set of proprietary ultra-hard mechanical face seals to provide superior life.

    The ongoing challenge to solve high pressure, high temperature washpipe life has finally been met with this robust and innovative design. The seals can be changed in ten minutes or less without removing the hammer nuts. The system works on most major brand top drives with no special modifications. The key value to the washpipe system is the confidence to keep on drilling without any concern of premature washpipe failure.

    Extensive developmental testing and real-world field trials have proven the washpipe system to be the answer to premature washpipe failures. This technology is exclusively available from the leaders in technological solutions, National Oilwell Varco.

    Main features of the washpipe include:

    • Extreme long-life service
    • Works on most major brand top drives with no special modifications
    • 7,500 psi
    • Simple mechanical seal design
    • Seals change in minutes with single, standard hand tool
    • Small and large-bore top drive application