As a scale cover on the waterregulatingvalve cover is marked with scales, by matching with a standard rod, the regulated position of the waterregulatingvalve cover at each time can be known.
调水阀盖上的刻度盖标有刻度，配合标准杆，就可以知道每次调水阀盖所调的位置。
2
The balance valve which is one of governing valves can conveniently change flow resistance of hot water, improve the regulating ability and keep the safety of heating system.
It is composed of the circulating water loop in constant temperature, surge tank, solenoid valves, flow regulatingvalve, electronic scale and control units.