641, 641 K

Clever technology for additional production safety

Spring activated pressure nozzles are ideal for coarse dosage tasks, cleaning and the air flow of gas or steam. The nozzles have been especially developed to achieve a broad expansion of the liquid stream. The spray image resembles that of a hollow cone, however with relatively coarse droplets and an uneven liquid distribution. The air flow is dependent on the differential pressure of the liquid. The air flow can be limited through a defined cone hub and the opening pressure can be varied.

Within the body of the nozzle there is a cone-shaped plunger, which seals the nozzle exit using elastic energy. With a pressure load (e.g. through the existing liquid pressure) the spring is pressed together and the cone is moved forward from the nozzle exit. The liquid escapes through the annular gap that arises.

With a reducing pressure load the annular gap is completely closed, which eliminates the risk of the nozzle being blocked from external material. The annular gap can optionally be limited through a defined cone hub and the opening pressure can be varied.