What kind of valve is this?
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This type of valve appears in the flowchart; does anyone know what kind of valve it is?
The valve body is equipped with a drain valve, suitable for applications where drainage from the valve body is required
Valves specifically designed for catalyst use, with packing purge; some plants use them for venting purposes
It should be a drain valve installed at the bottom of the valve
Valve with purging on the catalyst feeding line