HALF-CASE OF SLIDING SHUTTER AND SLIDING SHUTTER Russian patent published in 2009 - IPC F16K3/06 F16L19/02 

FIELD: mechanical engineering.

SUBSTANCE: invention refers to pipeline fittings and is designed as shutting down and control device for pipelines and channels of wells transporting working medium. The half-case of the sliding shutter consists of a branch and of external and internal flanges. Thread is cut on at least one end of the branch. The thread is ended with a circular groove. A thrust ring is inserted into the circular groove. The external flange and/or internal flange are connected to the branch by means of a threaded connection with crumpling made on the flange thread against the thrust ring. The sliding shutter is made of two half-cases with a spacing ring. The shutter is assembled between the half-cases.

EFFECT: upgrade manufacturability of half-cases of sliding shutter.

2 cl, 5 dwg