There are a few systems like this remaining in use but generally they are approaching 50 years of age or fitted by a diy installer with a very old book of how to fit central heating.
Central heating air separator piping diagram.
An air separator is an in line device that removes entrained air microbubbles that is moving with the flow of the fluid.
Hydraulic separators must be properly sized to provide proper hydraulic air and dirt separation.
Excessively high flow rates will impede these functions.
2 referring to pumps heating p ch 1 p ch 2 as 2 et 2 p 3 p 4.
So it is quite likely that the way it is currently installed is contributing to the pumping over.
They are different products for different purposes and you can t really compare efficiency between the two.
Piping air dirt separator expansion tank secondary pumps p b 1 p b 2.
Insure that piping between the air separator and the plain steel expansion tank is pitched at least 3 degrees to facilitate the migration of captured air.
Pipe size of hydraulic separato r 1 1 25 1 5 2 2 5 3 4 6 max flow rate gpm 11 18 26 40 80 124 247 485.
The design of the air separator means that is has to be on its side with the side vent pipe at the top to work properly.
Excessive air within a system can cause excessive noise reduce the accuracy of control valves and the performance of heating and cooling equipment therefore removal is important.
These air pockets can actually restrict or block flow in a hydronic piping system.
A new separator is about 20 so it might be worth installing a new one.
As 1 et 1 p 1 p 2 fcu cooling primary pumps secondary pumps secondary pumps primary pumps air dirt separators.
Air vents should be mounted at any point in a piping system where an air bubble could form.
They do have a reputation for blocking up with.
Integrated piping systems zheating cooling fire protection condenser water trade.