Edwards nXDS Tip Seal Service Kit, as the parts become worn out, The pump will start to lose its ability to reach the lowest ultimate pressure. You may consider using this repair kit to maintain the Edwards nXDs series dry scroll vacuum pump to a certain level of performance.

Base pressures for nXDS pumps is often measured at 10 mTorr or less. If you notice that your base pressure is now only getting to 25 mTorr, then the tip seal will likely need to be replaced.