FIELD: machine building.
SUBSTANCE: valve seat is suggested for use with valves for fluids. Valve seat (302) contains ring (302) of valve seat, sealing assembly (422) and lock (424). Valve seat ring (302) has external surface (402) containing the first round groove (414) and second round groove (416) located near the first round groove (414) to form the step profile (418). Sealing assembly (422) is located in the first round groove (414), and lock (424) is located in the second round groove (416) and holds the sealing assembly (422). The valve seat interacts with socket (314) and valve body (304). If the valve stock (318) moves by the drive, the lock element (316) can open or close the hole (322) in the socket (314) to ensure possibility of flowing of flow termination between the input hole (308) and output hole (310).
EFFECT: improved design.
21 cl, 9 dwg
