FIELD: technological processes.
SUBSTANCE: proposed device for high pressure liquid treatment includes a high pressure chamber formed by a body with a piston that rests on a plunger with a channel for delivery of medium moving the plunger on one side and limited by the plunger on the opposite side; while in the extended position, the plunger provides for the high pressure chamber connection to the channel for delivery/draining of treated liquid. Inside the plunger there is a second plunger and an additional channel for draining/delivery of liquid for treatment which provides for the high pressure chamber connection to the additional channel when the plunger in the extended position.
EFFECT: treatment efficiency enhancement.
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