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The following photographs show hardware available that we are capable to supply.
Please click on the images to view larger.
 We can supply any type of Valves TWA -1, TWA- 2, TWM, TWQ Assemblys. |
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| We can supply any type of Valves TWV -1 / TW - ACU. |
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| We can supply any type of Bubble Caps Assemblies. |
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| Non-slotted FRI caps are also available. |
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Consignment Hardware anyway you need it.
We can fabricate and deliver Tray Decks, Down-Comers, Beam and Seal pans.
We can manufacture any type of bubble caps.
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| We can supply and replace any type of M/W Washers. |
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| We can supply Universal Tray Clamps. One-way, Two-way, Clamps with 2" HB and Clamps with Hex Nut welded. |
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| We can supply and replace any type of Washers. |
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We can supply any type of Bubble Caps Assemblies.
Non-Slotted Fri Caps are also available. |
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Various styles of valves are available with a section of lifts and gauges.
TW cage valve/TW-"M" type valve, TW-A1 & A2 valve assembly.
TW-1714/TW-1716 TW-AC round valve. |
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We can supply and replace any type of Seal Plates.
Available in a variety of Materials, Gauges and Lengths. |
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We can supply Ceramic Materials of various sizes.
Ceramic Round Balls from 1/2" up to 2".
We can supply Ceramic Saddles from 1/2" to 3". |
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| We can supply any type of Random Packing sizes ranging from 5/8" to 3" diameter. |
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T-Structured Grid Packing available in a wide range of steel and alloy metals.
We can fabricate and deliver any type of T-Structured Grid Packing. |
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We can supply and replace any type of Grid.
We can fabricate and deliver Tray Decks, From Down-Comers, Beams and Seal Pans. |
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We can supply and replace any type of Tray Deck.
We can fabricate and deliver Tray Decks, From Down-Comers, Beams and Seal Pans. |
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Standard material thicknesses available for valves are 16, 14, 12 & 10 GA.
Standard material types available for all valves are carbon steel, 410 SS, 304L, 316L.
We can supply any type of material from C/S. 410, SS, 304L SS, 316L SS, Monel 400.
Other specific material types available upon request.
For Valve Styles not listed contact Tower Internal for availability.
Dual flow trays are sieve trays that do not have downcomers. The entire active or bubbling area is perforated with holes with typical hole sizes ranging from 1/2" -1" in diameter. Vapor and liquid counter-currently flow through the perforations; hence, the name Dual flow. Under normal operating conditions, liquid splashes about on top of the tray in a wave-like manner. Liquid flows downward momentarily through perforations in the areas of wave crests whereas vapor flows upward through perforations in the area between crests. High open area dual flow trays have a higher capacity and lower pressure drop compared to conventional fractionation trays at the same tray spacing and are particularly well suited to systems containing a moderate to high level of solids or where polymerizable compounds are present. The main disadvantage of dual flow trays is their narrow efficient operating range. The majority of industrial applications are more common in small to moderate tower diameters. However, large diameter designs have also been employed. Levelness is especially important with dual-flow trays. Trays which are not level potentially suffer from gross liquid and vapor flow partitioning through the deck.
Side-to-side baffle trays and disc & donut trays are arranged in a tower in such a manner that the liquid and vapor contacting is accomplished by vapor passing through a curtain of liquid falling from one tray to the next or through rivulets of liquid flowing through perforations in the tray deck. Tray decks are flat or slightly inclined plates that occupy 40-60 percent of the tower area. Designs which incorporate perforated decks are typically 40 percent open so that there is sufficient overlap between adjacent rows of plates. For a given tray spacing, both types of trays have a higher capacity and lower pressure drop than conventional sieve or valve trays or even dual flow trays; however, their liquid/vapor contacting efficiency is significantly Lower. Baffle trays and disc & donut trays are particularly well suited to heavy fouling systems due to their extremely high open area. Typical applications include heavy oil refining and petrochemical heat transfer services having a high solid and/or petroleum coke content.
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