Abstract: A plunger type safety valve includes a valve body, a valve rod, and a tube piece. The valve body is provided with a first water inlet port and a first water outlet port, the first water inlet port is connected to a water pipe of a local water supply plant, while the first water outlet port is connected to a water input end of a filtering device. The valve rod is disposed vertically in an inner chamber of the valve body, to switch between connection and disconnection of the first water inlet port and the first water outlet port. And the tube piece is connected fixedly with a lower end of the valve body, to form into a chamber body, and is provided with a second water inlet port and a second water outlet port.

Abstract: A plunger type safety valve, includes a valve body, a valve rod, and a tube piece. The valve body is provided with a first water inlet port and a first water outlet port, the first water inlet port is connected to a water pipe of a local water supply plant, while the first water outlet port is connected to a water input end of a filtering device. The valve rod is disposed vertically in an inner chamber of the valve body, to switch between connection and disconnection of the first water inlet port and the first water outlet port. And the tube piece is connected fixedly with a lower end of the valve body, to form into a chamber body, and is provided with a second water inlet port and a second water outlet port.

Abstract: A water filtering device safety valve, comprising: a valve body, provided with a first water inlet port and a second water inlet port, and a first water outlet port and a second water outlet port; a valve core; a central valve rod, connected rigidly to a lower portion of the valve core; a water stop pad, disposed in a lower portion inner chamber of the valve body, and can be slid upward or downward; a cone shape head, disposed in a lower portion of the water stop pad; a pressure release through hole, disposed in a central portion of the water stop pad, a lower portion of the central valve rod is disposed over and opposite to the pressure release through hole; and a separation body, used to separate an upper portion inner chamber and a lower portion inner chamber of the valve body.