High-temperature high-pressure difference pressure-reducing valve

The invention relates to a high temperature high pressure difference reducing valve, which is characterized in that the reducing valve comprises a valve body, a valve seat, and a valve core which is positioned in the valve seat and can move up and down in the valve seat; the valve core is fixedly connected with a valve rod by a thread and a pin; the valve rod is positioned in the valve body, sealed from the outside world by sealing packing and a packing gland, and can move up and down; the lower part of the valve seat is provided with a bush, a throttle orifice and a flange which is connectedwith the outer part; and a medium enters into a valve cavity from the side direction, and flows out from the tail end after flowing through a channel composed of the valve core and the valve seat, and the throttle orifice at the downstream of the valve seat,. Compared with the prior art, the high temperature high pressure difference reducing valve can reduce the pressure of materials with high temperature and high solid c