FIELD: valves.
SUBSTANCE: invention relates to valve devices and can be used in designs of hydraulic shock absorbers: impact stoppers and elements of support-suspended pipeline protection systems against external dynamic effects. Bypass valve device includes a spring-loaded valve and a valve support with a through hole, equipped with a seat in the form of a circular collar for valve seating, is characterized by that it includes a cylindrical bushing, which is equipped in the middle of the support with two seats for seating of two displaceable valves made in the sleeve, each of which is equipped with 6–10 holes made at angle of 20–60° to landing seats plane, and central conical guide, wherein between valves there is a spring, and valves are installed on different sides of support so that central cone guides were directed towards each other.
EFFECT: invention provides displacement speed of locking rod of hydraulic shock absorber 2–6 mm/s at external dynamic actions with force of 18–1,000 kN acting in opposite directions.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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