FIELD: machine building.
SUBSTANCE: valve includes connected on both ends with tubing string coupling with side hole, where valve body is built with bypass hole. Body is made in form of stepped cylinder, and in said cylinder there are coaxially arranged in series a nut with central stepped hole and a sharp end edge, spring-loaded slide valve with longitudinal channels on periphery, a sealing gasket and locking element in form of a bolt with a conical tip. Slide valve with sealing gasket can interact with face edge of nut, and shutoff element, simultaneously holding sealing gasket on slide valve, on closing bypass holes of body limits stroke and further compression spring. Body with outer side is equipped with top and bottom vertical gusset plates. Slide valve, spring and valve shutoff element are made of stainless material and sealing gasket is made from polyurethane.
EFFECT: higher efficiency of device for gas bypass.
2 cl, 1 dwg
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