BALL GATE Russian patent published in 2008 - IPC F16K5/06 F16K27/06 

FIELD: mechanics.

SUBSTANCE: invention relates to pipeline valves and accessories and is designed to be used a control-and-shut-off element in liquid or gas media. The proposed ball valve gas a cylindrical body comprising inlet and outlet branch pipes, seat surfaces, a ball plug interacting with the said seat surfaces and a rotary stem. The body upper flange is furnished with the stem hole, while it upper flange is provided with the support of the aforesaid plug. The body upper flange is furnished also with the third branch pipe with a seat surface interacting with the ball plug. The rotary stem is arranged in the third branch pipe and can be removed there from with valve tightness intact.

EFFECT: simpler design, ease of manufacture, expanded performances.

1 dwg