有人用过没? 是这个吗,没有接触过 general description a rapid, efficient, and foolproof purge valve for 100% replacement of air in reaction vessels. automatically controls gas flow and pressure. no special fittings needed. connect reaction vessel, house-vacuum, and purge gas to the firestone valve via 10mm o.d. connections. conserve expensive gases by decreasing flow to almost zero after purging. [此贴子已经被作者于2008-12-1 11:29:42编辑过] 查看更多