Ringo Válvulas has concluded the design, manufacturing and testing of selfoperated control valves for the air supply emergency system for the actuators of certain critical valves of Almaraz Nuclear Power Plant in Spain. These comprise of 17 self-regulated control valves 1 1/2” 900# material SA182 F316, nuclear class NC3 and leakage class VI.
These are critical valves since their function is to assure the air supply to pneumatic actuators of certain critical valves of the plant. in case of failure of normal supply, air can be taken from an emergency tank at 1860 psig and provided to the installation in the outlet set pressure range of 72-115 psig.
