SYR Syrobloc safety valve 8 bar, 3/4 inch diaphragm safety valve 2115 for the connection of closed drinking water heaters according to DIN 1988 and for systems according to AD leaflet A2, housing made of pressed brass, cap made of fibreglass-reinforced plastic (DN15-DN32) or housing made of gunmetal, cap made of cast brass (DN40. and DN50) Component test: TÜV-SV-10-545 standard settings 6, 8 and 10 bar response pressure (outside the standard settings) 4-10 bar on request raw yellow