DRENCHER ALARM VALVE Russian patent published in 2022 - IPC A62C35/68 

FIELD: fire extinguishing systems.

SUBSTANCE: invention relates to alarm deluge valves that are used in automatic fire extinguishing systems using a liquid stimulating medium (water and foam) at pressures from 0.14 to 1.6 MPa. Alarm deluge valve for fire extinguishing installations, containing a body with a cover and with inlet and outlet flange holes, a working chamber of two cavities separated by a membrane. The inlet and outlet holes are located on a common axis, and the inlet hole is separated from the outlet hole by a rotary disk mounted on two semi-axes with a seal located in the lugs-supports mounted on a disk rotating on an eccentric axis perpendicular to the common axis, and the disk is equipped with a seal and is held by a stop, in the lower part of which a support bolt is installed, which serves to limit the angle of rotation of the disk, while the stop is fixed by a roller with a plunger, the upper end of which extends into the lower cavity of the working chamber and abuts against the membrane, which is clamped in the center between two disks, and on the periphery is pressed by a lid. The upper cavity of the working chamber is formed by a membrane and a lid, in which an opening is made for connection with a pipeline leading to a start signaling device. The valve is easy to manufacture, has a small mass and material consumption.

EFFECT: overall dimensions of the valve can significantly reduce the complexity of installation, dismantling and periodic maintenance; the cost of the valve is low in manufacture and application.

1 cl, 1 dwg