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Safety valve system, e.g. for medical use, comprises non-return valve in transparent case with scale which displays pressure in system being monitored, according to position of top of membrane or spring
Safety valve system, e.g. for medical use, comprises non-return valve in transparent case with scale which displays pressure in system being monitored, according to position of top of membrane or spring
The safety valve system comprises a non-return valve (3) in a transparent case (2) with a scale (4). This displays the pressure in the system being monitored, according to the position of the top of a membrane (5) or spring.
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