FIELD: machine building.
SUBSTANCE: proposed device comprises valve body with fluid channel. Control component arranged in said body to displace therein between first and second positions. Cap attached to said body extends into said channel to direct, at least, portion of fluid when aforesaid control component stays between said first and second positions. Ledge is made on said cap to extend, at least, partially into valve body. Said ledge features, in fact, parabolic cross-section.
EFFECT: perfected design.
20 cl, 6 dwg
