Product Profile of Knitmesh - Column Packing Pads

Haver standard india pvt. Ltd. Is the manufacturer and exporter of column packing pads. Knitmesh is a regular tower packing made from a crimped mesh of woven wire filaments. Every strand of this mesh is a bunch of a large number of thin filaments [111 micron size]. The package is cylindrical in shape and is made to a size, which snugly fits the interior of a distillation column. The features of the column packing pads are as follows.

• Low value of hetp [height equivalent of theoretical plate].

• Typical values range from 100 to 150 mm. Low values of pdts [pressure drop per theoretical stage].

• Typical values range from 0.04 to 0.05 mm of hg, depending upon the vapour load.

• High vapour handling capacity: vapour handling capacity of knit mesh is comparable to 25 mm metal pall rings.

• No reduction in efficiency even at low liquid irrigation rates: capillary action of knit mesh helps it to achieve uniform wetting of the entire package even at low liquid loadings. Packing can work without loss of efficiency at a liquid irrigation rate as low as 0.3 mh [0.5 gpm/ft]

• Performance is independent of packing size: unlike random packings, the properties of knit mesh are independent of packing size. Hence its performance characteristics such as hetp and pdts are practically independent of packing diameter.

• No wall effect: knitmesh draws liquid from the wall of the column into its interior by capillary action. No liquid redistributes are therefore necessary for a column packed with knit mesh.