Energy-saving Shut-off and Regulating Device

A reliable and safe operation of piping systems depends on the precision of parameter regulation of the conducting medium with a minimum energy expenditure. The authors analyzed the use of gate and wedge shut-off valves by operating organizations in the mode of regulation of parameters of working media. The unintended use of pipe fittings causes its rapid failure. The authors have developed, manufactured and tested shut-off and regulating devices that have broad capabilities in the implementation of the throughput characteristics and requiring to control a drive of a smaller capacity. When the device opens or closes the opening in the gate, a closed controlled valve acts as a bypass, as in the flow of a working medium through an orifice the pressure is aligned in the inlet and outlet nozzles. After pressure equalization (reducing pressure drop), the gate is unloaded and its lifting and lowering require less power, while for the shut-off and regulating device with the electric drive, the latter step requires with lower power consumption. On the basis of the energy created by slide gate valves saving shut-off and regulating device with a wide implementation in the throughput characteristics, methods of its calculation and experimental research and rational parameters are defined.