| 摘要 |
A sanitary spray nozzle system. The nozzle may be fixed in position, or may be mounted on an oscillating or moveable carriage for application of material to a thin film dryer. A nozzle body includes a hollow mounting chamber with an inner surface, a product supply portion, and a discharge portion with a discharge orifice. A spray nozzle assembly is removably mounted to the hollow mounting chamber. The assembly has a propellant supply tube having an outer surface, a discharge end for discharge of propellant fluid, an outer seal sealable against the inner surface of the mounting chamber, and an inner seal slidably engageable with the outer surface of the propellant supply tube, in a fluid tight manner. An actuator urges the discharge end of the spray nozzle between an end stop position wherein the discharge end is adjacent the discharge orifice, and a wide open position wherein the discharge end is spaced apart from the discharge orifice.
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