Operating range mechanical seal LPressure p = 4 barSpeed v = 12 m/sTemperature t = -35 +120°C Characteristics mechanical seal LSingle Mechanical SealDouble directional Catalog Mechanical seal L Umbra Italy Operational limits – Standard components – DIN 24960 P 4 bar V 12 m/s T -35 +120 Material Mechanical seal L Metal part T1 – – – Spring F – – – Elastomeric parts P – – – Promary ring B – – – Mating ring – – – – Description mechanical seal L Type Description d D WH H L1 20 40.1 6.5 19 39.90-40.03 6.5 11