Compressed Natural Gas (CNG) Replacement Elements– Racor FFC Series

Racor FFC CNG Filter / Service Elements protect alternative fuel system injectors and components by removing aerosol contaminants in CNG as small as 0.3 – 0.6 micron with up to 99.97% efficiency.

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    Efficient operation of CNG vehicles and equipment requires protection of the fuel system to prevent premature failing of injectors and precision components. During processing and handling, contaminants can enter CNG fuel streams in a number of ways (e.g., lube oil carryover from compressors, condensation in fuel tanks, solids build-up during handling). This leads to component damage, engine downtime, and increased maintenance costs.
    Designed for use with Racor CNG filter housings (110, 110L, 112, 113, 116N), FFC Series Replacement (Type C) Coalescer Elements protect critical engine components in CNG powered vehicles and equipment by removing 99.97% of all aerosols in the 0.3 - 0.6 micron range.

    The service elements are available in two media grades:
    Grade 6 - Grade 6 filter elements are used when total removal of liquid aerosols and suspended fines is required. Because of its overall performance characteristics, this grade is recommended for CNG applications below 500 PSIG.

    Grade 10 - Grade 10 filters are used as pre-filters or as coarse coalescers. They are designed to remove gross amounts of aerosols or tenacious aerosols, which are difficult to drain.
    For more information on FFC Series CNG filter elements, consult the CNG High Pressure Filtration brochure in the “Product Support” tab.

    How they work:

    FFC coalescer elements are specially designed for the removal of liquid contaminants from gaseous flows. They are manufactured using a patented process where micro-glass fibers are arranged into a tubular form. During operation, dirty, wet CNG is forced through the coalescing media from the inside of a cartridge through a tubular wall to the outside, where large droplets fall to the bottom of the housing. Clean CNG gas exits the housing through the outlet port. Oil and water removed from the gas stream accumulates until drained, while dirt particles are trapped and retained on the surfaces of the fibers

    • Construction
    • Power Generation
    • Oil and Gas
    • Transportation

    • Alternative Fuel Systems (CNG)

    Features and Benefits:
    • Patented coalescing filter removes 95 - 99.97% of all aerosols in the 0.3 - 0.6 micron range (actual removal efficiency depends on media grade)
    • Prevents costly injector damage and increases operational life of precision engine components.
    • Saves time and money by eliminating unplanned maintenance and unscheduled downtime from system component failure.
    • Available in a wide range of configurations to meet the unique requirements of customers’ engines.

Performance Characteristics

Product Series

Cartridge CNG Fuel Filter
FFC Series



For Fluid Type


Mounting Type

(Top) 3/8”-16 UNC-2B X2, (Top) 5/16”-18 UNF, or (Top) 1/4"-20 UNC-2B depending on product selected.

Compatible Element

Depends on product selected

Operating Features

0.5 to 5.1 ounce sump capactity depending on product selected


3.9 to 10.4 depending on product selected inch
18.3 to 26.4 depending on product selected cm


2.3 to 3.1 depending on product selected inch
4.45 to 7.9 depending on product selected cm


1.5 to 5.5 depending on product selected lb
0.68 to 2.5 depending on product selected kg


Onboard CNG powered vehicles

Maximum Operating Temperature

-40 to 221, or -40 to 350 depending on product selected. °F
-40 to105, or -40 to177 depnding on product selected. °C

Seal Material



1/8" NPT / Brass Petcock or Plug, depending on product selected

FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for further investigation by users having technical expertise. The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors. To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems. Click here to view all product safety information.

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