Type R Series Knock-Out Drum Separators

Droplet separators 99% efficient for droplets >10 microns

  Download R-Series Specs

The R-Series centrifugal separators double as high-performance knockout drums, designed to remove liquid from gas streams in oil, gas, and industrial systems. With proven century-old technology, these units offer low maintenance and reliable separation. Explore specs below or Compare knockout drums vs. centrifugal separators.

Receiver gas/liquid separators are specifically designed to separate heavy liquid loads and large liquid “slugs”. Another way of describing their design is that when the liquid load is the driving factor for sizing the physical size of the separator, the receiver style separators can be used to minimize the physical size of the separator. In steam systems receiver style separators are also used as a flash tank or demister ahead of steam turbines.

Knockout Drum Applications

• Oil & gas pipelines
• Compressor protection
• Flare systems

Fully welded pressure vessel fabricated to ASME Code Section VIII Division 1 with stamp.

Receiver gas/liquid separators separate entrained droplets and particles larger than 10 microns with 99% efficiency and have no serviceable or moving components, thus require zero maintenance.

Their liquid separation capacity is equivalent to 90% of their mass flow rate capacity, the highest of all separator designs.

 While the other centrifugal separator designs immediately cause the process gas to enter a centrifugal vortex, the receiver style ensures significant droplet coalescence by diverting the process gas to a deflection surface. Most of the entrained liquid never reaches the top section of the separator body. To exit the vessel the gas must travel upwards and enter a centrifugal vortex chamber via angled plates where the center of the exit nozzle extension tube is within the low-pressure center of the vortex. Centripetal force and inertia combined with gravity ensure that droplets larger than 10 microns coalesce to a common drain.

The physical size of the separator (its diameter and length) is determined by the maximum volume of gas passing through the separator and not necessarily corresponding inlet and outlet pipeline “size”. Gas/liquid separator “size” is an indirect reference to the diameter and length of the separator body with the inlet and outlet nozzle ID being the largest which can be attached to the required circumference of the separator body, thus a 10” size separator may have 10” or smaller inlet/outlet nozzles to match pipeline it will be installed into.

Typically manufactured from pipe, they can be fabricated from rolled plate; standard materials include carbon steel, 304L SS and 316L SS although they can be fabricated in other alloys when required. Customizations include support legs, additional ports and non-flanged connections.

Related Products: TS Gas/Liquid Separators, L1S Gas/Liquid Separators