BELLOW VALVE Russian patent published in 2019 - IPC F16K1/48 F16K1/50 

FIELD: valve production.

SUBSTANCE: invention relates to the field of pipe fittings and can be used in the chemical, energy, oil and gas and other industries. Bellows valve includes body with the working medium supply and discharge branch pipes, cover, sealed by the bellows stem and the locking member in the form of movably attached to the stem spool. Inside the body a sleeve is installed with possibility of the spool movement therein, and on the spool surface at the spool with the sleeve contact points the ring-shaped overlays from wear-resistant material are made.

EFFECT: elimination of the known bellows valves designs drawbacks, increase in the reliability and maintainability.

11 cl, 6 dwg