current location：Circulating pumps can only be installed on hot water supply mains. And install a check valve and a flow control valve. So the circulating water pump "does not act as a water circulation. And the role of pressurized water, is actually pressurized water pump. "It's like a cold water pressurized pump in a water project.
The water from the reservoir is drawn out to the water tower and then sent to the user by gravity.
However, the environmental protection of the Inner Mongolia boiler indicates that Japan's pressure-free boiler is not so, it is the water one-water heat exchanger installed in the boiler, heating system hot water does not come into contact with the furnace water, the role of circulating water pumps.
