Knockout Drums
Knockout Drums

Knockout Drums

Knockout Drums Manufacturer

Knockout Drums

Knockout Drums, also known as Knockout Pots or Flash Drums, are essential components in various industrial processes, particularly in the manufacturing sector. These devices are primarily used for the separation of liquids and gases in process plants. They play a crucial role in ensuring the efficiency and safety of the operation by removing unwanted liquids from gas streams.

Function and Working Principle

Knockout Drums are designed to handle the separation of entrained liquids from gas streams. When a gas stream containing liquid droplets enters the drum, the velocity of the gas decreases. This reduction in velocity allows the liquid droplets to fall out of the gas stream due to gravity, settling at the bottom of the drum. The cleaned gas then exits the drum from the top, while the collected liquid can be drained from the bottom.

Types of Knockout Drums

  • Horizontal Knockout Drums: These are suitable for high gas flow rates with lower liquid loadings. They provide a larger surface area for the gas to expand and release the liquid droplets.
  • Vertical Knockout Drums: These are more compact and are used where space is limited. They are effective for applications with higher liquid loadings and lower gas flow rates.


Knockout Drums are widely used in various industries, including:

  • Oil and Gas: To remove liquids from natural gas streams before they enter compressors or pipelines.
  • Chemical Processing: To separate condensate from process gases.
  • Power Generation: To eliminate moisture from steam lines, preventing turbine damage.
  • Pharmaceuticals: To ensure the purity of gas streams in sensitive processes.


  • Efficiency: Knockout Drums efficiently separate liquids from gases, preventing equipment damage and ensuring smooth operation.
  • Safety: By removing liquids, these drums reduce the risk of corrosion and other damage to downstream equipment, enhancing overall plant safety.
  • Versatility: Suitable for various industries and can be customized to meet specific process requirements.

Maintenance and Care

To ensure the optimal performance of Knockout Drums, regular maintenance is essential. This includes:

    • Routine Inspections: Checking for any signs of wear, corrosion, or damage.
    • Cleaning: Periodically cleaning the drum to remove any accumulated debris or sludge.
    • Draining: Regularly draining the collected liquids to prevent overflow and ensure continuous operation.

Why Choose Varun Engineering for Knockout Drums?

At Varun Engineering, we specialize in manufacturing high-quality Knockout Drums tailored to meet your specific process needs. Our products are designed with precision and built to last, ensuring efficiency and reliability in your operations. With a focus on innovation and customer satisfaction, we provide robust solutions that help you achieve optimal performance in your process plant. Choose Varun Engineering for your Knockout Drums and experience the difference in quality and service.