GB-DW Series

Regularly monitor gauge readings for abnormal pressure and temperature variations; ensure they remain within design specifications; check for erratic behavior indicating potential internal degradation or blockage

Visual inspection of plate pack exterior, especially at gaps and interfaces between plates; check for moisture, drips, or residue indicating micro-leaks; perform dye testing at 0.6 times design pressure for 30 minutes with one side pressurized and other unpressurized; use hydrogen/nitrogen mixture leak tracking for material fatigue detection

Inspect plates visually for debris, sediment, or scale deposits; assess flow passages for blockage; perform hydro-blasting or chemical CIP cleaning if fouling detected; verify plate cleanliness meets design specifications to maintain heat transfer efficiency

Check all fastening bolts for looseness, corrosion, or degradation; verify proper torque specifications are maintained; inspect for vibration-induced loosening; replace corroded bolts with specifications matching original design requirements

Visually inspect brazing joints for cracks, voids, or separation; perform dye penetrant testing if cracks suspected; check for color change or corrosion in brazed areas; verify no signs of hydrogen embrittlement or stress corrosion in high-pressure models; use ultrasonic or helium leak detection for structural integrity assessment