| 摘要 |
FIELD: machine building.SUBSTANCE: invention relates to valve construction and is designed as a check valve for shutting off a flow passage of a pipeline with a flow of working agents. A check valve includes housing (1). Inside housing (1) there is counter cone (2) with inclination angle (?) of 25° to 45°, which is provided with through holes (4) for working agent and with pin (7) of conical valve head (6), which is freely fixed in hole (5), with angle (?) that is smaller than or equal to angle (?) of counter cone (2). Pin (7) of conical valve head (6) with support surface (3) is equipped with conical spring (8), and coaxially connected to conical valve head (6) along one of the sides of support surface (3).EFFECT: improving operating reliability of a valve for working agents with high flow rate at opening and closing.2 cl, 5 dwg |
