FIELD: valving.
SUBSTANCE: stop valve comprises housing, face member made of a trancated cone that diverges downward, is set in the housing, and is spring loaded from above, and cooperation members mounted inside the housing. The valve also has groove for collecting lubricant and ring groove at a distance from the cone at an angle of 90-120°.
EFFECT: enhanced safety and improved structure.
1 cl, 3 dwg
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