Tanktop Mounted Return Line Filter - STF Series

The STF Series return line filters are designed for situations where the use of aluminium is restricted in applications such as marine and industrial.
Max. flow 500 l/min - Max. pressure 10 bar.

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    The Parker Filtration STF Series Return Line Filters STF Tank top mounted return filters feature pre-filtration by means of a magnet column and a bypass with low hysteresis.
    Thanks to the “In-to-Out” filtration principle, contaminated oil cannot leak back into the system.
    The STF filter has a casted iron filter head assembly, making it ideal for marine and industrial applications were the use of aluminium is restricted.
    The filter head with multiple ports, capable of handling flow up to 500 l/min at 10 bar working pressure, represents an easy and effective way of integrating return line filtration with power packs.
    Optional airtight diffusers are standard to avoid air ingress in the return line.

    Product Features:
    • 'In-to-out' filtration design means contaminated oil cannot leak back into the system.
    • Magnetic pre-filtration.
    • Cast iron filter head assembly
    • Multiple port configuration.
    • Flows up to 500 L/min.
    • 10 bar maximum working pressure.
    • Optional airtight diffusers.
    • LEIF® low environmental impact filter elements as standard.

    Typical Applications
    • Marine power pack
    • Steel mills
    • Mining equipment
    • Drilling equipment

Performance Characteristics

Mounting Type

Tank Mounted

Pressure Rating

0-34 bar
0-500 psi bar

Flow Rate

250-500 L/min

Housing Material

Cast Iron (GGG40)

Operating Temperature

-40 / +100, -20 / +120 °C

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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