STD Valve Trays
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The STD valve is an industry standard movable valve.
The valve is made in one piece with 3 legs and is normally supplied with dimples to limit the contact with the tray deck to 3 points when shut.
These valves are used for general applications except where there is a risk of fouling.
Alternate rows of light valves (1.5mm thick) and heavy valves (2.0mm thick) are used to maximise turndown. Typical operating range is 4 to 1.
Very light valves (1.2mm thick) are used to minimise the (dry) pressure drop.