A valve (100; 200; 300) including a valve body (1; 301), a valve stem (4; 302), a valve cartridge (2; 2'; 304) and a valve seat (3; 305), the valve body having an inlet (1a; 301a) and an outlet (1b; 301b), an inner space being formed between the inlet (1a; 301a) and the outlet (1b; 301b) for accommodating the valve cartridge (2; 2'; 304), the valve seat (3; 305) being arranged inside the inlet (1a; 301a), the valve cartridge (2; 2'; 304) being rotatable around an axis to open or close the valve, wherein the valve further includes a transmission device to transmit the movement of the valve stem (4; 302) to the valve cartridge and a position limiting device for limiting the movement sequence of the valve cartridge (2; 2'; 304); the valve cartridge (2; 2'; 304) has a recess (22; 3040), at least one portion of the transmission device being provided in the recess (22; 3040) of the valve cartridge and engaged with the recess of the valve cartridge; wherein an axial rotation of the valve cartridge is driven by the transmission device, wherein the axial rotation is changed to a pressing movement of the valve cartridge relative to the valve seat driven by the transmission device when the axial rotation is finished, wherein the pressing movement makes the valve cartridge to have at least a radial component of movement; the position limiting device is used to limit movement of the valve cartridge during a process in which the valve is opened, so that the transmission device drives the valve cartridge to disengage from the valve seat before the valve cartridge is rotated and does not prevent the valve from closing during a process in which the valve is closed the position limiting device comprises a position limiting structure (1h, 1g) on an inner wall of the valve body and another position limiting structure (21a', 21b) on the valve cartridge to cooperate with the position limiting structure on the inner wall of the valve body, the position limiting device is configured to prevent the valve cartridge from rotating toward an open direction via cooperation of the position limiting structure on the inner wall of the valve body and the position limiting structure on the valve cartridge, and the position limiting device is configured to release the valve cartridge, thereby allowing the valve cartridge to rotate toward an open direction via disengagement of the position limiting structure on the inner wall of the valve body and the position limiting structure on the valve cartridge. the valve further includes a transmission device to transmit the movement of the valve stem (4; 302) to the valve cartridge and a position limiting device for limiting the movement sequence of the valve cartridge (2; 2'; 304); the valve cartridge (2; 2'; 304) has a recess (22; 3040), at least one portion of the transmission device being provided in the recess (22; 3040) of the valve cartridge and engaged with the recess of the valve cartridge; wherein an axial rotation of the valve cartridge is driven by the transmission device, wherein the axial rotation is changed to a pressing movement of the valve cartridge relative to the valve seat driven by the transmission device when the axial rotation is finished, wherein the pressing movement makes the valve cartridge to have at least a radial component of movement; the position limiting device is used to limit movement of the valve cartridge during a process in which the valve is opened, so that the transmission device drives the valve cartridge to disengage from the valve seat before the valve cartridge is rotated and does not prevent the valve from closing during a process in which the valve is closed the position limiting device comprises a position limiting structure (1h, 1g) on an inner wall of the valve body and another position limiting structure (21a', 21b) on the valve cartridge to cooperate with the position limiting structure on the inner wall of the valve body, the position limiting device is configured to prevent the valve cartridge from rotating toward an open direction via cooperation of the position limiting structure on the inner wall of the valve body and the position limiting structure on the valve cartridge, and the position limiting device is configured to release the valve cartridge, thereby allowing the valve cartridge to rotate toward an open direction via disengagement of the position limiting structure on the inner wall of the valve body and the position limiting structure on the valve cartridge.