公开(公告)号：US3949785A

公开(公告)日：1976-04-13

申请号：US471400

申请日：1974-05-30

申请人： Gunther Ropte

发明人： Gunther Ropte

IPC分类号： F16K11/083 ,  F16K35/02 ,  G05D7/00

CPC分类号： F16K11/0833 ,  F16K35/02 ,  Y10T137/87917 ,  Y10T137/88046

摘要： A valve combination for flame photometers particularly for a rapid and secure switching over from one to another fuel gas comprises a switching valve and a subsequent safety valve which either obstructs or lets pass a fuel gas emitted therefrom. Both valves are contained in a housing at a considerably short distance. Each of said valves has at least two entrance openings and one exit opening for the fuel gas.The exit opening of the switching valve is at the same time the entrance opening of the safety valve, the latter opening being closely located relative to the exit opening of the safety valve.

摘要翻译： 用于火焰光度计的阀门组合，特别用于从一个燃料气体到另一个燃料气体的快速和安全切换，包括切换阀和随后的安全阀，其阻止或允许通过从其排放的燃料气体。 两个阀都以相当短的距离容纳在壳体中。 每个所述阀具有用于燃料气体的至少两个入口和一个出口。