Internormen D68804 (also written as D-68804) is a series code covering a range of hydraulic and lubrication filter elements of the same physical size, each part number within the series representing a specific filtration accuracy and media option. D68804 and D-68804 refer to the same product line — the hyphen is simply a formatting variation seen across catalogs and part listings.
Dimensional Drawing
Schematic reference drawing only. For a to-scale dimensional CAD drawing or a physical sample, please contact us for a quote.
Technical Specifications
Filter Type
Pressure / return-line hydraulic filter element (also applied to gearbox lubrication filtration)
Filter Media
Glass fiber (standard); stainless steel wire mesh also available
Filtration Accuracy
1–100 µm depending on the specific part number within the D68804 series
Outer Diameter
70 mm
Inner Diameter
25 / 41 mm (dual-diameter stepped bore)
Overall Height
220 / 225 mm
Working Pressure
1.6 MPa
Operating Temperature
-30 °C to +200 °C
Rated Service Life
1,500–2,500 working hours (application-dependent)
Test Standards
ISO 16889 (multi-pass efficiency & dirt capacity), ISO 2941 (collapse pressure), ISO 2942 (fabrication integrity), ISO 3968 (pressure drop), ISO 3724 (flow fatigue)
Compatible Equipment & Applications
D68804 / D-68804 elements are used across a wide range of hydraulic and lubrication circuits, including:
Metallurgy — rolling mill and continuous casting machine hydraulic systems, lubrication equipment
Petrochemical — product/intermediate separation and recovery, oilfield injection water and natural gas filtration
Textile — process fluid purification and uniform filtration
Gearbox lubrication systems — protects gearboxes from particulate contamination
General industrial hydraulic power units
Please confirm the exact micron rating and media type for your machine before ordering, as the D68804 series covers multiple filtration accuracies under the same physical dimensions.
OEM & Cross-Reference Numbers
Brand
Part Number
Internormen / Eaton
D68804
Internormen / Eaton (hyphenated format)
D-68804
DeMalong Filter (our replacement)
Contact us for our part number
Cross-reference numbers are provided for identification purposes only. DeMalong Filter Inc. products are aftermarket replacements and are not affiliated with, sponsored by, or manufactured by Internormen, Eaton, or any brand referenced above. All trademarks belong to their respective owners.
Lead Time, MOQ, Samples & Customization
Samples
Sample units available for testing and quality verification prior to bulk order
Customization
Outer diameter and length can be customized; media choice (glass fiber 1–50 µm or stainless steel mesh) and pressure rating available on request
Packaging
Individual box with DeMalong brand and part number, or neutral / customer-branded packaging on request
Lead Time & MOQ
Varies by order quantity and customization — submit an inquiry for a specific lead time and MOQ quote.
The D68804 filter element is a high-performance hydraulic filter designed to remove solid particles and colloidal substances from the working medium, ensuring the smooth operation of hydraulic systems. Here are the detailed specifications and applications for the D68804 filter element:
Technical Specifications:
Model: D68804
Filtration Accuracy: 1-100 microns
Filter Media: Hydraulic oil, lubricating oil
Filter Material: Stainless steel metal mesh, glass fiber
Working Pressure: 1.6 Mpa
Operating Temperature: -30°C to +200°C
Applications: The D68804 filter element is widely used across various industries due to its high filtration efficiency and durability:
Metallurgy: Utilized in the hydraulic systems of rolling mills and continuous casting machines, as well as various lubrication equipment.
Petrochemical: Employed in the separation and recovery of products and intermediate products during oil refining and chemical production, and in the filtration of oilfield injection water and natural gas.
Textile: Used for the purification and uniform filtration of polyester melt during the drawing process, protection filtration of air compressors, and oil and water removal from compressed gases.
Electronics and Pharmaceuticals: Applied in the pre-treatment filtration of reverse osmosis water and deionized water, and the pre-treatment filtration of washing liquids and glucose.
Thermal and Nuclear Power: Used for the purification of oil in the lubrication systems, speed control systems, and bypass control systems of turbines and boilers, as well as in the purification of feed pumps, fans, and dust removal systems.
You know you have received a quality DeMalong Filter hydraulic filter when you our logo on the filter box with our brand name and part number.
Our filters are built with the highest quality and reliability in mind so you know your equipment is safe and can keep running smoothly.
DeMalong Filter hydraulic filters can be used in a variety of industries including but not limited to: power generation, defense, oil/gas, marine and other motor sports, shipping and transportation, railroad, mining, pulp and paper, steel making and manufacturing, entertainment and various other industries.
All of our elements are manufactured according to ISO specifications, including: ISO 16889, Clean DP (low and high visc.) - ISO 3968, Fluid compatibility - ISO 2943, Flow fatigue resistance - ISO 3724, Dirt capacity - ISO 16889, Collapse pressure - ISO 2941
All items marked "Replacement" or "Interchange" are not affiliated with the original manufacture where names and part numbers are for cross reference only. All trademarks are trademarks of their respective owners. Reference is made to the OEM solely to identify the compatibility of DeMalong Filter Inc. filter with the OEM filter.
Images may be general representations of products and may vary from image. All items are sold by 1 unit unless a pack size is listed in the title description.
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