By using the pressure sensors which are located on the airlines and tank body, Smart Pressure Release Valve will control the tank pressure during the discharge process. If the pressure is over than required/needed pressure level, this valve will be activated to de-pressurize the tank to the optimum pressure level. When the discharge is completed, If the tank is still under pressure, this valve will lock the ladder and catwalk by using a pneumatic switch to prevent the operator to be at the tank top and will de-pressurize the tank automatically.