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SD 5 00 01 / 1 1, 2 Lutz-Jesco GmbH Improved changes are always reserved without notice.
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- Has the seat of counter-ring flange 12 been damaged? - Have other components been damaged or are they worn out? All o-rings should be replaced when assembling a dismounted pump. Lutz-Jesco GmbH Improved changes are always reserved without notice.