These valves allow leak free operation at pressures close to the set valves the series 1800 full nozzle top quided safetyreleif valves are manufactured in accordance with the requirements of asme code section viii are available in sizen 1 [d2] to 8 [ [t10] with inlet flange ratings of class 1500 300 600 1500 and 2500 standard outlet flanges these valves are designed to handle moist air gae steam vapour and liquid applications
