SP45 digital lock balance valve is a special feature with digital lock modulating valves, DC-type body structure, with better equal percentage flow characteristic, can reasonably allocate traffic, effectively solve the heating (air conditioning) systems Enthusiasm room problems. At the same time able to accurately adjust the pressure drop and flow, to improve the state of the liquid flow in the pipe network system to reach equilibrium liquid pipeline network and energy conservation purposes. Indication of the valve has opened, and the opening of the locking device for flow measurement manometry small valve, as long as the user entry in each branch and the balancing valve fitted with the appropriate size, and with a special one-time debugging smart meter lock, the total amount of water system is controlled within a reasonable range, so as to overcome the "big flow, small temperature difference" unreasonable phenomenon. The product is ideal for the heating system. SP45 balancing valve can be installed on the water supply pipe can also be installed in the return pipe, in general we recommend installation in the return pipe, especially for high-temperature loop to facilitate debugging, but also to be installed in the return pipe, installation of balancing valve supply (back) will be re-established this pipe valve.