VALVE CLOSURE LOCKING DEVICE Russian patent published in 2001 - IPC

Abstract RU 2169304 C1

FIELD: mechanical engineering. SUBSTANCE: invention relates to valves installed in various mains, pipelines and other systems, particularly to shutoff valves and valve closure locking devices. Device for locking valve closure in extreme positions has main and spring-loaded auxiliary locks provided with drives and common socket in valve body. Rod of valve closure is mechanically coupled with lever provided with additional slot for main lock. EFFECT: reduced forces required for opening valve limited in size, provided of automatic closing in emergency. 7 cl, 3 dwg

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RU 2 169 304 C1

Authors

Vaninskij N.Kh.

Lisovskij R.Z.

Mishin A.I.

Fedoruk A.V.

Chechurov V.A.

Dates

2001-06-20—Published

1999-10-11—Filed