FIELD: technological processes.
SUBSTANCE: present invention relates to a check valve for spray nozzle with a valve housing, a shut-off body and a valve seat and can be used in spray nozzles to remove scale. Check valve for a spray nozzle contains a valve housing, a shut-off body and a valve seat. Shut-off body is arranged movably at least in the longitudinal direction of the pipe-like valve housing. Shut-off body is connected to the valve housing by means of a corrugated pipe, located parallel to the longitudinal direction, and is located on the upstream end of the corrugated pipe. Due to a spring action of the corrugated pipe the shut-off body is pressed in the direction of the valve seat. Spray nozzle tube with a filter is inserted into the supply pipeline and is equipped with a check valve.
EFFECT: to reduce hydraulic resistance and improve liquid spraying characteristics.
14 cl, 23 dwg
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