Patent ID: 7032842

Claim:
A spray element for a spray head, comprising: a casing including a first chamber, a cylindrical section having the share of a cylinder, a second cylindrical chamber, and a connecting bore, wherein the cylindrical section is placed between the first chamber and the second cylindrical chamber, and wherein the first chamber is connected a medium to be sprayed; a valve including a control piston having first and second end portions, a rod connecting the first and second end portions, and a sealing ring disposed on the first end portion; and a spray nozzle disposed in the casing, which spray nozzle can be fed through the valve with compressed air and with the medium to be sprayed, wherein the first end portion of the control piston has a smaller diameter than the second end portion and is guided with the sealing ring in the cylindrical section of the casing, wherein the second end portion is guided in the second cylindrical chamber and divides the second cylindrical chamber into a first section, which is connected with the spray nozzle through the connecting bore, and a second section which is connected with control air, and wherein the distance between the end portions of the control piston is chosen such that the sealing ring in a starting position of the control piston lies sealingly in the cylindrical section and, upon the application of control air to the second end portion, enters the first chamber so as to allow the medium to be sprayed to flow through the cylindrical section into the second cylindrical chamber.