FACILITY FOR CONNECTION OF PARTS Russian patent published in 2010 - IPC F16L19/00 

FIELD: machine building.

SUBSTANCE: facility for connection of parts consists of case of vessel with orifice along perimetre of which there are made collars of contact surfaces of connected parts with packing element between them; further, facility consists of threaded connection fixing connected parts relative to case of vessel. The facility is equipped with an additional flange with a sealing element in plane of the contact collar, formed from the side of internal cavity of the vessel case, thus creating pressure tight cavity, wherein a plate is installed. With threaded connection the plate is joined to an additional flange. Also surface of the additional flange, facing internal cavity of the vessel case, is spherical.

EFFECT: firm engagement of connected parts is achieved at applying moderate force for tightening.

1 dwg