After water stop, when the water pressure is short in 0.02Mpa,
water valve automatic shut-off, this valve's use solvable except
you when bustling about, after cutting off the water supply forgot
closes the water the control valve, after the water comes, creates
floods situation and so on building occurrences. Utilize CAD
computer to design and carry on the information to process
systematically,Consider its durability,secuity,use characteristic
convenient to be flexible according to the national standard and
customer's demand at the time ot the desgn.