Safety valves ASTA series P341 and P361 are low-lift spring angle valves designed for automatic protection of equipment and pipelines from unacceptable excess pressure. The operating principle is based on the difference in the elastic deformation force of the spring and the force created by the pressure of the working medium. When the valve setting pressure is exceeded, the excess working medium is discharged. Mainly used to protect steam pipelines, pressure vessels (receivers, autoclaves, pasteurizers, etc.), piping of thermal power plants and other industrial equipment.