The article presents the experience of operating real pumping stations in urban water supply. The basic principles of practical modeling of the operation of a group of pumps for a common load are considered. The main errors in the modernization of pumping equipment of water supply units are analyzed.

the modern possibilities of manufacturing technologies of pneumatic automation systems based on fluidic switching elements are considered. The perceptivity of using the fluidic systems as the alternative to using the relay automation systems is noted.

This article discusses a way to solve the problem of operational quality control of concrete in the construction of critical structures with the use of small-sized testing machines. To reduce the testing machines size, it is proposed to use a high-pressure hydraulic drive. As a promising way to control the machine, the practical experience is described of using a pump with a constant displacement, the drive of which uses an electronic frequency converter.

The problems of controlling the gates of hydraulic structures from the point of view of modernizing current systems and expanding their capabilities are considered. A variant of the modernization of a discrete directional control valve is presented, which ensures the further implementation of a digital system for controlling the speed and position of the hydraulic control regulating element of hydraulic structure.

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