Pressure Candle Filters

The Micronics Engineered Filtration Group offers a variety of Pressure Tube Candle Filters ensuring we can help you find the candle filter that is perfect for your application.

Pressure Tube Candle Filters are liquid-solid pressure tube filters that use groups of columnar filter elements sealed within a pressure vessel to produce a cake with dry solids and filtrate with high clarity. The number of candle elements depends on the filtration area of the Pressure Tube Candle Filter. During operation, a slurry enters the candle elements through the filter bag. The cake sits on the bag and filtrate is discharged through the central tube element. After the filtration cycle, the cake is discharged by back washing with compressed air or liquid stroke. Containment of the filtration process means these filters are ideal for processing solvents, concentrated acids, and other toxic products.

Pressure Tube Candle filters are well suited for applications that require efficient low-moisture cake filtration or a high degree of polishing. These filters can also be used for thickening to produce a concentrated flowable slurry by partial removal of the liquid phase as filtrate. Additionally, Pressure Tube Candle Filters are able to operate on very short cycle times, taking advantage of the high filtration rates while the cakes are still thin.


  • Offer a smaller footprint than pressure leaf filters
  • Very high filtration rates
  • Wet cake or dry cake discharge
  • Virtually no maintenance or maintenance costs
  • Back washable
  • Optional use as a continuous thickener
  • Automatic discharge of cake by blow back, using low air volumes
  • Filtration area increases by 50 percent during the cycles
  • Can be automated
  • Contained filtration


  • Polishing liquids
  • Fine chemicals
  • Pharmaceutical
  • Agricultural chemical
  • Pulp and paper
  • Alumina
  • Precious metal catalysts
  • Activated carbon
  • Polyols
  • Edible oils
  • Pesticides
  • Biodiesel
  • Filtrate and concentrate polishing process lines handling titanium dioxide
  • Flue gas
  • Brine clarification
  • Red mud
  • China clay
  • Amine
  • PTA

Candle Filter Bag

The Micronics Engineered Filtration Group manufactures Pressure Tube Candle Filter bags to your exact specifications. We will work with you to make candle filter bags that are a perfect fit for your candle filter elements and will accomplish your specific filtration needs.

Candle Elements

Used with Pressure Tube Candle Filters, candle elements provide the structure needed for the candle filter bag to accomplish the filtration you need in your candle filter unit.

Wedge Wire

From flow distribution to carbon retention, wedge wire products are used in many different applications. They are the ideal solution for separating solids from liquids, retaining media, filtering, sizing, dewatering, collecting, and distributing.


With these many advantages, Pressure Tube Candle filters are ideal for a wide range of applications. Notably, containment of the filtration process means these filters are ideal for processing solvents, concentrated acids, and other toxic products.

The Micronics Engineered Filtration Group offers Pressure Tube Candle Filters with an available filtration area of up to 200m². The Candle Filter units are primarily made of stainless steel; however, vessels are also available in titanium and high nickel alloys. Vessels are lined with hard rubber, PVDF, or Halar coating. From the pressure tube candle filter unit to the replacement parts including candle filter bags and candle filter elements, the Micronics Engineered Filtration Group has everything you need to operate a pressure tube candle filter at your facility.

Contact Us today to learn more about our Pressure Tube Candle Filters and replacement parts.

Contact Our Experts

Micronics Is Your Trusted Partner for Total Engineered Filtration Solutions. We offer end-to-end solutions from Filter Media to Industry-Leading Filtration Equipment, to Spare Parts & Accessories, to On-Site Field Services and In-House Laboratory Services. Whether for your Filter Press, Belt Press, Leaf Filter, Vacuum Filter, or Baghouse, you can count on Micronics’ deep industry and applications knowledge for the right engineered filtration solution to meet your needs. We look forward to working with your team.

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