The invention discloses a
sulfur hexafluoride gas density
relay, which comprises a shell, a base, an end base, a bourdon tube, a temperature compensating element, and a plurality of micro switches serving as
signal generators of the gas density
relay, wherein one end of the bourdon tube is connected to the base, while the other end is connected with one end of the temperature compensating element by the end base; the micro switches are arranged on the base or in the shell, and are provided with connection point operating handles; the gas density
relay further comprises a displacement
magnification mechanism, wherein the displacement
magnification mechanism has an initial end which is connected with the other end of the temperature compensating element, and an amplifying end which drives the connection point operating handles of the micro switches to connect or disconnect connection points on the micro switches; and when a gas density value changes, the bourdon tube and the temperature compensating element displace, and the displacement is magnified by the displacement
magnification mechanism and then transmitted to the micro switches to make the micro switches send corresponding signals. As a result, the function of the density relay is completed.