What is flame arrester on board ,its construction and purpose in details ?

1. designed in such a manner that they cannot be inserted improperly in the opening;
2. securely fitted in openings so that flames cannot circumvent the screen;
3. able to meet the requirements of these standards. For flame screens fitted at vacuum inlets through which vapours cannot be vented the test specified , need not be complied with; and
4. be protected against mechanical damage.

Types of flame arrester:

1. End of line flame arrester.
2. In line flame arrester.
3. Pre volume flame arrester.

Regulation for flame arrester:

The 1981 and the 1983 amendments to the International Convention for the Safety of Life at Sea, 1974 (SOLAS) include revised requirements for fire safety measures for tankers. Regulation II-2/59 of these amendments contains provisions concerning venting, purging, gas-freeing and ventilation. regulation II-2/59.1.5 states: “The venting system shall be provided with devices to prevent the passage of flame into the cargo tanks. The design, testing and locating of these devices shall comply with the requirements established by the Administration which shall contain at least the Standards adopted by the Organization’’.