PIETRO FIORENTINIaperflux 851 3 inch_seal kits
Seal set for 3‑inch APERFLUX 851. Contents typically mirror the 2‑inch kit but sized for the larger trim: head/body gaskets, balanced plug seat, diaphragm pack, shaft/bush seals and pilot circuit O‑rings. Recommended after X hours/years of operation or when lock‑up and creep tests fall out of tolerance in field inspections.