Cover with integral vent for buried tank comprises handle, port and chimney, around port, covered by handle so that there is vent space between chimney and port

摘要

The cover (3) which is intended to close a tank placed in the ground, includes a handle (19), a port (18) and a chimney (16) placed around the port. The handle comprises a circular gripping part (20) and an axial rod (21) fixed to the cover. The chimney is covered by the handle so that there is a space between the chimney and the port capable of allowing the passage of air between the inside and the outside of the tank through the port.