You can export single Vaults when needed. To enable the ability to export a specific Vault you will need to enable users who have read permissions to export content.
Enabling Users to Export a Vault
Access the Password Server > Admin > General Settings. Select Allow Vault members who can Read to export content to CSV (in clear text).
Select Save Changes.
Now if you navigate to the desired Vault > Actions - you will see the option to Export Password.
As of Password Server v2.7 you will be emailed a link to download the file when it is ready.
Note: We would not recommend leaving this setting enabled at all times. Once the desired Vault is exported you will want to disable the feature in General Settings. This will ensure the users are not undesirably downloading passwords.