The Trough Style Distributor consists of long tunnels called troughs, and one or more parting boxes, for feeding liquid to the troughs. The parting box helps in controlling the feed velocity to the troughs and ensures proportional distribution of the liquid. The space between the troughs is available for vapor passage.
The number and location of the parting boxes will depend on the column diameter. Orifices can be located either on the wall or on the base of the troughs. When orifices are located on the wall, conductor tubes are provided at the wall to guide the flow of liquid.
The Trough Style Distributor usually rests on a ledge/support ring. It can also be suspended from beams. The advantage of parting box is the absence of joints, thus providing excellent liquid seal. Redistributors are not available in this model.
• Column diameter > 250 mm (10 inches)
• Maximum Turndown ratio 10:1
• Liquid rates between 2-30 m3/m2.hr (0.5-12.25 GPM/ft2)
• Low to medium fouling
*Selection criteria guidelines provided are typical but not limiting. Under certain conditions, special design provisions can be made for accommodating varied hydraulic and mechanical requirements.
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