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  1. crackerdog

    PD3000 pushrod seals keep cracking?

    Hi, i use several PD3000 cryogenic pumps, in the last 3 months we have changed the pushrod seal on one of the pumps 3 times, going on it's fourth time now. Obviously a problem. Just curious to know if anyone else has had this issue. Could it be the piston (warped)? top or bottom end? Thanks,

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