限位开关（阀位反馈开关）用于检测气动阀门全开、全关位置，向 DCS/PLC 提供阀位开关信号。产品遵循 NAMUR 标准，可选隔爆、本安防爆、SIL 认证，结构坚固，防护等级高，可配套各类气动执行机构，适用于石油化工、生物制药、水处理等危险工况，实现阀门状态远程监控与联锁保护。
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