Single-acting cartridges with safety seal

The service life of mechanical seals is much longer than that of packings - but is not unlimited. DEPAC recommends so-called safety seals for demanding applications or for minimising the risk of an expensive loss of production. If the mechanical seal fails, the emergency seal (packings) used there can be activated and adjusted to an acceptable degree of leakage. The plant can thus be operated in a controlled manner until the next planned standstill.