Can the fire hydrant seal be unsealed?

Of course. The fire protection law does not stipulate that fire hydrants must be closed, but it stipulates that fire hydrants must not be locked, closed, blocked or occupied. However, in real life and management, in order to prevent the owner from using the fire hydrant privately, the property management company will put a seal at the door of the fire hydrant box to remind the owner not to use it privately, so the fire hydrant can be used without a seal.