This paper is presenting optimization of a valve assembly’s design. The pressure safety relief valve is the key component in any system where pressure rising could be hazardous to the safety of the workers as well as the plant. Safety valves are designed to provide protection from overpressure in steam, gas, air and liquid lines. Safety valve should be a reliable and more precise design that will be working at more accuracy. In refinery distribution sector, safety is of prime importance. Home appliance is also required pressure safety in the modern era. The key requirement of the process is to relieve this pressure rise in no time. Old technological design valves are unable to fulfill that requirement. Design and analysis of an emergency safety valve. From the data, the suitable valve is designed using FEA. In this project is focused on change old technological safety valve with new 3D prototype valve that has less equip parts, wherein it is required that flow be shut off when a certain pressure is reached.Electronic valves are available, however, the intent of this design project is have a totally mechanical system, which has an inbuilt response mechanism. The working environment is hazardous & explosive. This safety valve is an auto-regulate operating valve used as tertiary safety arrangement for critical applications.