Coalescer filters

Fine droplets combine in gas or liquid

Part description

What is a coalescer filter element?

A coalescer filter is designed to capture fine droplets of a liquid (such as water) from a gas or liquid stream. These droplets are brought together (coalesced) into larger droplets that can then be more easily separated. The coalescer element consists of several layers of specialized filter materials that capture fine water droplets from an oil or gas stream and bring them together into larger droplets.

Types of coalescer elements

Coalescing is often done in the oil and gas industry to separate water from oil, for example. Interfilter offers coalescer elements that consist of a multi-layer medium, medium with an integral pre-filter layer, or without an integral pre-filter layer where the filter medium consists of glass fiber. In addition, our CAA series is tested and certified according to the 5th edition of API 1581.

Where are coalescer filters used?

• Fuel filtration (for example, aircraft fuel to remove water from fuel).
• Gas filtration to remove water or oil from natural gas.
• Removal of water from oily fluids or chemicals.
• Industry: chemicals, resins, solvents, hydraulic, oil, and lubricating oils.
• Petroleum refinery: hydrocarbon stock, fuels, crude, condensates, and distillates.
• Pipelines and petroleum terminals: diesel, gas oil, kerosene, LNG, and LPG.
• Electricity generation: turbine lubricating oil and hydraulic oil.
• Pulp and paper: lubricating and hydraulic oil.
• Electricity transfer: transformer oils.

Specifications of coalescer elements

• Filtration: 0.3 to 5 microns, depending on the application.
• Nominal lengths: 11.25 to 57 inches.
• Materials: glass fiber, polyester, polypropylene.
• Element with multi-layer medium available for higher efficiency.
• Elements available with or without integral pre-filter layer.
• Recommended max. operating temperature: 115°C.
• Maximum flow rate: can vary from 10 liters per minute to thousands of liters per minute, depending on the size of the element.
• pH range from 5 to 9.
• Core and support cage: steel (galvanized or tin-plated).
• End caps: steel (galvanized or tin-plated).
• Gasket: buna-n.
• Flow direction: from inside to outside.
• Certified according to the 5th edition of API 1581, category "C" type "S".

Free advice on coalescer filters

For more information, you can read our specific datasheet on the coalescer filter or contact one of our employees. Our employees will be happy to provide you with customized advice for your process.