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Questions about Manual Station Used for Release Agents

Question asked by zhangya on Mar 7, 2020
Latest reply on Mar 7, 2020 by cdafd

Dear everyone! 

According to NFPA 2001, in my view, the standard request the manual station for release must have two distinct actions for realease (see below), only the two actions have satisfied simultaneously, the system can be released. Am I right? Does anyone can provide a actual product to illustrate this cause? Thanks in advance! All manual stations used to release agents shall require two separate and distinct actions for operation.