Manifolds are devices used in water systems to connect the supply and return water of various heating pipes. For underfloor heating and air conditioning systems, brass is a preferred material for manifolds, while for household meter replacement in potable water supply systems, manifolds are often made of PP or PE. Both supply and return lines are equipped with air valves, and many manifolds also feature drain valves. A "Y" type filter should be installed at the water supply inlet. Each branch pipe of the water supply pipeline should have a valve to adjust the water flow.
