mainly be used in bearing sun-powered thermos,also be used in remote control system.it has three type: Type A: empty water pipe dynamical valve,be used in emptying of sun-powered thermos water pipe,also be used in remote controling of the fluid in the pipe. Type C: full auto cut-off valve,can be cut off autoly when the water in tank is full,also be used in remote controling of the fluid in the pipe. Type D: tank auto control meter,it has the functions of timely adding waster, cutting off autoly when the water in tank is full,also be used in remote controling of the fluid in the pipe. |