What is the purpose of flame screens installed on tank vents?

The purpose of flame screens installed on tank vents is to dissipate the heat of an external flame. These screens serve as a critical safety feature designed to prevent flames from entering the tank. When an external fire occurs, the flame screen acts as a barrier, absorbing and dissipating heat and thus reducing the risk of igniting flammable vapors inside the tank. This is essential for maintaining the integrity of the tank and ensuring safety on board.

In addition to providing a safeguard against flame ingress, flame screens also allow for the venting of flammable vapors to ensure that pressure within the tank does not build up to dangerous levels. Effective venting is crucial for safety, as it helps maintain the balance of pressure and prevents tank ruptures while simultaneously managing the risks associated with flammable vapors.