CLOSET VALVE FOR VACUUM SYSTEM FOR WASTES Russian patent published in 2013 - IPC E03D3/00 

FIELD: road engineering.

SUBSTANCE: closet valve comprises a valve unit, comprising an input, receiving a washing fluid medium and a ventilation unit arranged near to the input and connected with it for ventilation of air arriving at the input. The unit also comprises a device to control a fluid medium driven by means of a solenoid, an output device of the device for removal of vacuum and an output sending a washing fluid medium from the closed valve into a receiver for wastes. A device for control of the fluid medium selectively establishes interaction of the fluid medium between the input and output. In the valve unit there is a channel provided for direction of a washing fluid medium into a path of the primary flow of the washing fluid medium from the input into the ventilation unit, from the ventilation unit into a device for fluid medium control, from the device for fluid medium control into an output unit of a device for vacuum removal and from an output unit of a device for vacuum removal to output into a receiver for wastes.

EFFECT: efficiency and reliability of control of a flow of a washing fluid medium in vacuum receivers for wastes.

15 cl, 10 dwg