Strange valve leaking

Vincent Valentino

Hello,
I have a hot water system in a house that is relatively new to me. My previous house had a steam system that I got to know and understand fairly well. In this system there are 4 zones and each has a mechanical zone valve. Last year I had to replace the head on one of the zone valves. This year there is a corrosion leak on a no handle valve seen on the photo below. I don't know what this valve is used for and do I have to replace the valve or can I take it out all together. When I replace it or remove it I am sure I will lose water in the system. How do I add water back to the system or will that happen automatically?

Thanks so much in advance.
Regards,
Vinny

HotanCool

No offense,but it not that simple. Adding and subtracting water. Eliminating valves or replacing. Hire a qualified Hydronics Professional. Seriously,you could get hurt.