How to deal with the rust spots on the surface of the floor heating water separator?

If there are rust spots on the surface of the warm water separator, you can replace it with a new valve. If you don’t want to replace it, you can scrape off the rust and apply oil to prevent further rust.
The exhaust valve of the geothermal water separator is rusted and needs to be replaced with a new exhaust valve, otherwise the failure of the exhaust valve to exhaust will affect the normal use of the floor heating. The user can directly replace the exhaust valve with a new one.