IMPULSE SAFETY VALVE Russian patent published in 2017 - IPC F16K17/04 

FIELD: machine engineering.

SUBSTANCE: valve is proposed including a body with inlet and outlet connections and flanges, rod, bellows, spool, seat, setting spring, pressure bolt, upper and lower stops of the setting spring, additionally equipped with an independent opening-closing device consisting of springs, a pressure bar, a stop nut screwed onto the rod, and the lower spring stops, located on the pressure bar, pressure bolts inserted in the upper spring stops, located in the upper bar with the possibility of rotating it in the thread, jacks with operating environment for lift generation and with rods resting on the pressure bar. Disk-separator of pressure and discharge with saddle cavities and a filter. In the upper bar a hollow pressure bolt with the possibility of rotating it in the thread is additionally installed. The valve is mounted on a common base.

EFFECT: increase of reliability due to trouble-free and timely opening of the valve at a given excess of operating pressure in the system, providing the valve with an open position with the required capacity, making a timely return of the valve at pressure higher than the working pressure with the required degree of leakage after an emergency operation.

3 dwg