Válvula de contrapresión universal DHV-U - ProMinent

Troubleshooting7 TroubleshootingSee the figure in "Repairs" for item numbers.Fault description Cause RemedyPressure falls below set level Piston seal (16) dirty Clean the piston seal (16), see"Repairs"Piston seal (16) defective Replace the piston seal (16),see "Repairs"Set pressure cannot be reached.Pressure increases above theallowable valueLeaking at the level of thediaphragm (5)Leaking from the adjustmentscrew (13)Piston seat in the housing isdirtyPiston seat in the housing isdefectiveDiaphragm (5) dirtyDiaphragm (5) defectiveValve installed wrong wayThe piston guide (10.2) binds(e.g. due to dirt)Contact pressure of thediaphragm tensioner is toolow.Diaphragm (5) defectiveClean the piston seat, see"Repairs"Contact ProMinentClean the diaphragm (5), see"Repairs"Replace the diaphragm (5), see"Repairs"Turn the valve around, see thedirection arrow.Dismantle the valve and clean -refer to "Repairs"Tighten screws (12) (to approx.6 Nm)Replace the diaphragm (5), see"Repairs"54