Insulated jacket globe valve refers to a valve that is driven by the valve stem and moves up and down along the central axis of the valve seat to close the valve disc. It is mainly used in pipelines to connect or cut off the medium in the pipeline. BJ45 has low flow resistance, but cannot be used for throttling. Suitable for pipelines in the chemical and fertilizer industries, the inclusion of steam in the jacket can prevent medium crystallization and transport high viscosity media that solidify at room temperature.