

We at Attomo provide the manufacturing, turnkey supplier, designing and engineering consultation of the bubble cap tray. The Bubble Cap Tray is a type of tray that has been used for a long time. These trays are known as “fluid fixed” trays, where vapour passes through short lines known as risers covered by a cap with a serrated edge or spaces. These valves are typically used in situations where leakage is not permitted and for handling low liquid loads. Additionally, they have a high turndown ratio. The design is efficient and suitable for specified applications like the Chemical industry, Pharmaceutical Industry, and Petrochemical Industry.
At the heart of Attomo Industries’ Distillation Bubble Caps lies their ingenious design, which allows for efficient separation and purification of various substances. The precision engineering of these bubble caps ensures an even distribution of vapour and liquid flows, promoting effective contact between the two phases for enhanced mass transfer. This results in improved separation efficiencies and enhanced overall distillation performance.
The raw materials used for manufacturing Distillation Bubble Caps are primarily Copper, Titanium, and Stainless Steel. These materials are chosen for their excellent properties and suitability for the demanding requirements of distillation processes.
| Bubble Cap Trays are available in the following types | |
| MOC | Copper, Titanium, Stainless Steel or any metal/combination as per client requirement. |
Applications:
- Amine Absorbers
- Amine Regenerators
- Caustic Towers
Frequently asked question about Bubble Caps Tray
A bubble cap tray is a “fluid fixed” distillation internal where vapor rises through pipes (risers) and is deflected downward by a serrated cap into the liquid. This design ensures intentional contact between phases, making it the premier choice for processes where zero leakage and high mass transfer efficiency are required.
Yes, bubble cap trays offer superior performance, specifically providing a high turndown ratio and the ability to handle extremely low liquid loads without weeping. Their “fluid fixed” nature ensures the tray remains sealed even at low vapor rates, maintaining separation efficiency in critical chemical and pharmaceutical applications.
Attomo Industries manufactures high-durability bubble cap trays using premium corrosion-resistant materials, including Copper, Titanium, and Stainless Steel. Depending on your specific industrial requirements—such as handling corrosive amines or caustic substances—we can also engineer these trays using exotic or cladded metals to ensure long-term mechanical integrity.
Bubble cap trays are the industry standard for Amine Absorbers, Amine Regenerators, and Caustic Towers. They are extensively utilized across the Chemical, Pharmaceutical, and Petrochemical industries. Their robust design is ideal for complex distillation processes where consistent vapor-liquid contact is mandatory regardless of fluctuations in flow rates.
The best way to choose is by evaluating your process’s leakage tolerance and turndown requirements. Unlike floating valve trays, bubble cap trays prevent liquid from “weeping” through the risers. Choose bubble caps if your system operates at varying capacities or requires a constant liquid seal to maintain high-purity separation.
