Filter Focus: Custom Filtration

The Norman Filter Company Engineering Group can apply a custom design to fit your system needs. Odd geometries, unique connections, and diverse material selections can easily be incorporated into a custom design to fit your application. Filter element design is usually performed by either:

  1. Creating an element that fits into an existing customer size constraint
  2. Allowing NFC Engineering to customize element size based on flow specifications and associated pressure drop requirements.

For the latter, NFC utilizes in house equations and calculators to predict pressure drop to appropriately size your filter element. For simple modifications consisting of end fitting or length modifications to standard elements, NFC can quickly turn a design around and manufacture at low lead times.

For more complex designs NFC Engineering works with In-House Manufacturing R&D to determine the most robust method of manufacture. New designs can also be tested using in house test stands to verify pressure drop, flow capacity, and collapse pressure. NFC Engineering will interface with your design group from product conception until completion to ensure fit and functionality are to your complete satisfaction.

Contact NFC Sales with your design requirements to begin this process.  Below are typical minimum specifications to begin a custom design.

  • System Design Pressure (range)
  • System Design Temperature (range)
  • Working Fluid
  • Inlet/Outlet Connections
  • Collapse Pressure
  • Materials of Construction

If any of our catalog products don’t meet your requirements, our team frequently customize filter elements and housings to meet your most critical filtration needs.

Our team has in house design tools geared specifically towards filtration, which allows us to engineer custom filtration products for almost any application.

Norman’s engineering team has engaged in numerous custom-built filter assemblies for companies providing solutions in offshore energy, alternative fuels, drilling, OEM’s and many more.

We also offer custom products manufactured from exotic metals that include titanium, Inconel, Monel, zirconium, brass, and nickel. Custom filters to meet your needs including but not limited to manifold, subsea filters, and B31.3 compliant designs.

Custom filter housings and elements can be manufactured from a wide variety of metals suited for various applications. NFC can customize mesh for all welded filter elements or punched discs with various materials to meet differential pressure requirements.

Custom aerospace and oil & gas projects require a significant level of detail from the initial phases that require many of our teams to work together to achieve a common goal. From initial design phases with engineering teams from both companies developing a shared vision to weld development and custom machining from our seasoned professionals along with meticulous documentation to provide transparency, traceability, and repeatability. Norman has and will continue to acquire the appropriate testing equipment to support unique projects that push the limits of filtration.

Norman Filter Company is an AS9100D with ISO 9001 certified quality manufacturer of hydraulic filter housings, elements and filtration systems for the global industrial and aerospace markets. NFC designs, manufactures, and tests stainless steel high-pressure filter housings and elements. We supply state of the art high-pressure filter products for hundreds of companies and entities. For all your filter needs visit us at


AS9100 • ISO 9001 Certified

Engineered, Manufactured & Tested in the US

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