Isolation valve and reactor system with same

The invention relates to an isolating valve and a reactor system with the same. The isolating valve comprises a valve shell and a valve element. A first channel, a second channel and a valve cavity are formed in the valve shell, and the first channel and the second channel are both communicated with the valve cavity; the valve element is arranged in the valve cavity and can move between an opening position and a closing position, a third channel and a fourth channel are formed in the valve element, and in the opening position, the third channel is communicated with the first channel, and the fourth channel is communicated with the second channel; and at the closing position, the third channel is disconnected from the first channel, and the fourth channel is disconnected from the second channel. The isolating valve is reasonable in structural design and high in reliability, and the steam generator can be conveniently isolated and overhauled. 本发明涉及一种隔离阀和具有其的反应堆系统，所述隔离阀包括阀壳和阀芯。所述阀壳内设有第一通道、第二通道和阀腔，所述第一通道和所述第二通道均与