VACUUM BREAKERS PRESSURE : can be fitted without a downstream shut-off device Vacuum breaker CASING : chrome plated brass GUIDE : POM (polyacetal) CLOSING SYSTEM : POM (polyacetal) MEMBRANE : NBR SPECIAL : vertical ascending working position APPROVALS : ACS PROTECTION OF DRINKING WATER NETWORKS TECHNICAL INFORMATION 149B 2179 10 by adding a fillenring to the valve TECHNICAL INFORMATION (valid information current 2 PRESSURE PFA 10 bar θ 65° Vacuum breaker CASING : brass or chrome plated brass CLOSING SYSTEM : brass SELF-BREAKING SIDE SCREW ACS for DN 3/4 APPROVALS : BELGAQUA SPECIAL : vertical downwards operating position PROTECTION OF DRINKING WATER NETWORKS GARDEN TAPS TECHNICAL INFORMATION