FIRE PROTECTION RELIEF VALVE (ANGLE TYPE) Designed to maintain safe water supply pressure inside fire protection system to prevent the sudden increased pressure that would damage the system. The Fire Protection Pressure Relief Valve can relieve the exceeded pressure automatically. The valve features an adjustable pressure setting, fast opening to maintain the steady line pressure and close gradually as pressure decrease below the set point. Pressure Adjusting Range : 1~6 kgf/cm2 ( 1 kgf/cm2 = 14.2 psi) 4~10 kgf/cm2 2 Applied Temperature : -15~60 °C Valve Body Testing Pressure : 24 kgf/cm2 Maximum Applied Pressure : 25 kgf/cm2 ◎ Special order can be arranged for higher pressure adjustment range. No 1 2 3 4 5 6 7 8 9 10 11 12 A B C Part Name Valve Cover Spring Shaft Fixed Bolt Diaphragm Main Body Diaphragm Washer Diaphragm Fixed Bar Sealing Spacer Seat Center Shaft Control Pipe line Ball Valve Relief Pilot Valve Needle Valve Material Ductile Iron Stainless Steel Bronze Stainless Steel CR Rubber Ductile Iron Stainless Steel Bronze NBR Bronze Bronze Bronze Bronze Stainless Steel Stainless Steel