FIELD: machine engineering.
SUBSTANCE: automatic valve comprises a valve seat having the first gas flow passages extending through the said seat, and the valve restrictor having the second gas flow passages passing through the said restrictor. The valve further includes a locking element disposed movably between the said valve restrictor and the said valve seat. The locking element is arranged to press by a set of spring elements to a closed position ensuring sealing cooperation with the valve seat to close the said first gas flow passages. There is also a spring retaining ring with a lot of spring retaining seats. Each spring element is located partly in the respective spring pocket formed in the valve restrictor, and is held in the respective spring retaining seat.
EFFECT: more uniform pressing effect is achieved of the spring elements on the locking elements to move them, which contributes to a smoother valve operation and prevents from the occurrence of bending stresses on the locking elements.
18 cl, 14 dwg
