BALL VALVE Russian patent published in 2017 - IPC F16K5/20 B01D35/04 

FIELD: construction.

SUBSTANCE: ball valve consists of a housing 1, inlet adapter 2, a rotary valve 3, a shaft 4, a seal 5, a support 6. The filter 7 in the form of T-shaped cross section inner shell is installed between the support 6 and the seal 5. The end face of the filter T-shaped cross section 8 interacts with the spherical surface of the rotary valve 3. The support 6 has a groove 9, where the spring-loaded seal of the P-shaped cross section 10 with holes, interacting by the outer surface with the diametrical groove surface of the support 6, and at its end face - with the shell leg end face of the filter 11 T-shaped cross section.

EFFECT: increase of the ball valve service lifetime by reducing the ball valve seal clogging with foreign particles, presenting in the component, while working in conditions of cryogenic components temperatures.

3 cl, 2 dwg