E 068-756 ARGO-HYTOS In-Line Return-Suction Filters (w/ bypass protection strainer ) (30083900)

ARGO-HYTOS E 068 and E 088 Return-Suction Filters

Application: Designed for operation in mobile units with hydrostatic drives, where the return flow consistently exceeds the oil flow of the feed pump.

Performance Features:

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• Wear Protection: Employs filter elements that meet stringent cleanliness class requirements during full-flow filtration.
• Suction Filter Function: Ensures 100% filtration of the suction flow, preventing dirt from entering the feed pump.
• Return Filter Function: Provides full-flow filtration in the system return, protecting pumps from dirt particles remaining in the system after assembly, repairs, or generated by wear or external sources.

Functional Characteristics:

• Hydraulic oil returning from the circuit passes through the filter element, pressurized by a 0.5 bar check valve, and supplied to the feed pump.
• Surplus oil flows, filtered over the integral check valve, into the reservoir.
• Minimizes cavitation risk during cold start phase.
• Integral bypass valve in the filter element prevents excessive back pressure (cold start, element contaminates).
• 125 ?m protection strainer ensures only filtered oil reaches the feed pump.
• Start-Up / De-Aeration: Deaerating instructions published by the manufacturers of hydraulic drives must be observed.
• Filter Maintenance: Clogging indicators indicate optimal maintenance time for filter elements, maximizing filter utilization.
• Filter Elements: Flow direction from outside to the center, with star-shaped pleating for large filter surfaces, low pressure drop, high dirt-holding capacities, and long service life.
• Accessories: Electrical and optical clogging indicators are available.