Coalescer filters are essential for gas and liquid treatment in the (petro)chemical and oil and gas industries. They ensure efficient separation of liquid aerosols from gas streams. But strictly speaking, a coalescer is not a filter: it does not remove particles through blockage, but through physical separation based on droplet growth and gravity.
A coalescer uses the principle of coalescence: fine liquid droplets (< 0.3 microns) are combined into larger droplets that can then be easily separated. This process is essential in situations where residence time is limited or where accurate separation is crucial—think of compressor inlets, gas sweetening units, or downstream protection of membranes and catalysts.
In addition to gas/liquid (L/G) separation, coalescers can also be used for liquid/liquid (L/L) separation, for example, in amine and glycol recovery, or in process water deconditioning.
Meets the technical requirements of pressure vessel designs as per ASME VIII, PD5500, EN13445, ATEX standards and PED 2014/68/EU.
down to 0.3 micron
Oil & gas
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A modern coalescer consists of multiple layers of fine microfibre media, often fibreglass, which make liquid particles coalesce so as to be able to efficiently retain them. Advanced designs such as the Amazon SupaSep LGP combine pleated and melt-blown technology with an oleophilic drainage layer. This enables rapid removal of coalesced droplets, prevents re-entrainment, and maintains low differential pressure, even under variable flow conditions.
