We are replacing piping NPS 8 Sch 140 pipe spool by pipe spool. The spools are connected by flanges, with O ring seals. During fitting the flanges show misalignment sometimes several mm or more than in inch. The fitters use a chain hoist to bring the flanges together and torque the bolts...
In hydraulic (Fluid Power) application seals made with PFAS are used frequently. There are coming restrictions on the use of PFAS. Are there alternatives in sealing technology for hydraulics/