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DE541809C
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Device for influencing the shutdown device of a pipeline
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DE565990C
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Valve used as a throttle point for fluid meters with an axially displaceable closing body
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DE513897C
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Rooster
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DE503293C
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throttle
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DE501899C
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Gate valve
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DE418662C
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Valve used as a throttle point for measuring the amount of liquid
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DE381477C
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Drive for superheated steam valve with wedge pressure
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DE396831C
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Flat slide, especially for superheated steam
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DE399650C
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Control for hydraulically operated main shut-off devices
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