The leakage of air into the pump casing of a condensate pump is prevented by what method?

The correct method for preventing air leakage into the pump casing of a condensate pump is by using a water seal line to the packing gland. This approach involves creating a barrier using water that helps maintain pressure within the pump casing and ensures that air cannot easily infiltrate. The water seal acts as a physical block, preventing the entry of air that could disrupt the pump's operation, potentially leading to cavitation or inefficiencies.

Sealant application, although useful in various contexts, does not provide the ongoing dynamic barrier needed in a pump system where fluid movement is constant. Regular inspections are crucial for overall maintenance but will not actively prevent air leakage at the moment the pump operates. Enhanced filtration systems focus on removing impurities from the fluid, which does not relate to the prevention of air entry into the pump casing. Such methods do not address the specific issue of air leakage directly as effectively as a water seal.