MULTI-PURPOSE GATE Russian patent published in 2009 - IPC F16K3/02 F16K3/32 

FIELD: machine building.

SUBSTANCE: invention refers to machine building, particularly to accessories engineering, mainly to multi-purpose accessories and can be implemented in oil and gas producing and other branches of industry. The multi-purpose gate consists of a case. Supplying and withdrawing saddles are coaxially installed in a pass channel. The said saddles interact with a control slide valve on both sides. The slide valve consists of a solid shut-off and of a perforated control part. The slide valve is controlled with a spindle. The spindle is connected with the scale of slide valve position. An internal channel of the supplying saddle is made divergent. The internal channel of the withdrawing saddle is made convergent. The area of openings in the perforated part of the slide valve equals to area of less diametre of both divergent and convergent channels. The scale of the indicator of the slide valve position is marked on a lengthwise flat of a threaded part of the spindle.

EFFECT: design of multi-purpose gate facilitating minimal wear of packing field of withdrawing saddle at performing control functions of gate.

2 cl, 2 dwg