Compact pilot operated safety valve

The utility model relates to a compact pilot operated safety valve which comprises a main valve and a pilot valve. The pilot valve comprises an inlet, a control port, a discharge port and a pressure setting device; the main valve comprises a valve body, a valve seat, a valve clack and a valve cover; the valve is characterized in that the valve clack is of a plunger type structure and is directly installed between the valve body and the valve deck through a guide sleeve, a conical sealing face with a V-shaped groove formed in the lower end face of the valve clack and an inverted-V-shaped conical sealing face of the valve seat form a conical sealing pair, and a guide valve control port is communicated with a control cavity through a pressure guide pipe via a pressure guide hole in the side wall of the valve deck. The overall height of the product is greatly reduced, the product has the advantages of small size, small installation space and the like, and can be suitable for being used in a narrow space environme