Spray for the atomization of water in fire protection systems

Spray nozzle for atomization of water in fire protection systems with a housing having disposed in the housing swirl chamber and with a associated with this orifice, characterized by a sealing body (18) which bears from below on the housing (1) and with its nozzle opening (5 ) sealing ring lying of facing down side with a, (in an annular groove 19) (20) tightly closes the nozzle opening (5) from below, a single compliant at a trigger temperature pressing body (25) of the sealing body (18) (against the housing 1) pushes and facing away from his (the sealing body 18) at one end to the housing (1) connected part is supported.