A large number of valves are used in shipbuilding, refrigeration, housing and industrial construction and other sectors of the national economy. The book contains data on the design and calculation of pipeline valves. The design of valves for operation under different conditions and different media and drives used to control the valves are given. Information on materials used for reinforcement parts is presented. Issues for the design of the main units and parts are considered. Reinforcement calculation methods are described in detail. Provides reference data required for design and calculation.