Coalescer Filter Cartridges Features:
PartnerFilter makes kinds of different coalescer filters with high quality and advantage features as below:
Cost effective particle and emulsified water removal from hydrocarbon fluids
Easy installation and replacement with one-piece design
Choice of Threaded Base or Open End cartridges
Choice of All-Fiberglass Media or Combination Fiberglass and Pleated Media
Field proven performance
Ongoing qualification testing to meet changing commercial and military requirements
Used as a first-stage cartridge in Filter/Separator
Remove particulates and coalesce water into large water drops
How Coalescer Works:
Coalescer cartridges are employed as the first stage in filter/separator vessels for hydrocarbon fluids.They perform two functions:(1) coalesce (combine) highly dispersed,emulsified water particles into larger water drops and (2) filter-out particulate contaminants.
The left photo below shows a highly magnified view of the coalescing process.Tiny droplets of water contact and adhere to strands of fiberglass.Flow pushes the droplets along the strand until they reach an intersection of strands where they combine with other droplets (coalesce) into large drops.
These large drops are then carried to the outside surface of the cartridge.Having a higher specific gravity than the hydrocarbon fluid,they release and gravity pulls the droplet to the bottom of the vessel.The larger the drops, the faster and more efficiently they fall out (see bottom photo).In general,particle removal efficiency increases until they reach an intersection of strands where they combine with other droplets (coalesce) into large drops.
These large drops are then carried to the outside surface of the cartridge.Having a higher specific gravity than the hydrocarbon fluid,they release and gravity pulls the droplet to the bottom of the vessel.The larger the drops, the faster and more efficiently they fall out (see bottom photo).In general,particle removal efficiency increases with coalescing efficiency.This is accomplished by employing a tighter,finer filtration media.
Flow direction is from inside to outside of the cartridge.This minimizes surface velocity and helps prevent the water drops from breaking up and being carried downstream.
Filtration & Coalescence & Separation schematic diagram:
Coalescence Filter Application:
Coalescer cartridges are used primarily to coalesce emulsified water and remove particles from hydrocarbon fluids.The largest single application is the filtration of aviation jet fuel.They are also used with other types of fuels,process streams in refineries and petrochemical plants,and condensate streams where natural gas is produced.
Other liquids can be separated if they are immiscible,the specific gravities differ,and high concentrations of surface active agents are not present.As a rule of thumb,if a sample of the mixture readily separates in an hour or two,a coalescer can probably be used.If the mixture hasn’t separated after 24 hours,coalescing probably won’t work.
PartnerFilter also offers a full range of replacement filter elements:
Parker & Velcon
PECO Facet
Faudi
Pall
Other types are available on request,contact us,pls.