VALVE UNIT FOR HIGH PRESSURE VESSEL Russian patent published in 2013 - IPC A47J27/09 

FIELD: machine building.

SUBSTANCE: valve unit for a high pressure vessel consists of a tank and a cover plate to ensure the tank tightness and provides safety function, pressure release function and pressure indication function. The above unit includes the following: adjustable indicator levels and pressure levels; indicator pin (4) or indicator piston (10), which is borne against indicator spring (7), can be moved in axial direction and is supported from its section, thus becoming visible at pressure rise, as a result of its outlet from valve body (12), indicator rings, for example for pressure indication inside the vessel; and contains valve element (5). Valve element (5) has the possibility of being moved in axial direction against action of spring (6) for outlet steam, and when in closed position, it rests on sealing seat (19), thus being lifted from it upwards when this pressure inside the vessel is excess, for opening of pressure release hole (20), in which case both indicator spring (7), and spring (6) for outlet steam are supported in one and the same direction from common axially adjustable pressure element (8).

EFFECT: providing the possibility of correlation between the indication range of the indicator pin and pressure of actuation of the pressure release device.

8 cl, 1 dwg