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ISO 3968:2017

Current Revision

Hydraulic fluid power - Filters - Evaluation of differential pressure versus flow

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ISO 3668:2017 specifies a procedure for evaluating differential pressure versus flow characteristics of hydraulic filters and constitutes a basis for agreement between the filter manufacturer and user.

It also specifies a method for measurement of the differential pressure generated at different flow rates and viscosities by the relevant parts of a filter assembly, spin-on and any valves contained within the filter which are in the flow stream. The typical types of filter to be tested are as follows:

Type 1: which are spin-on filters in which the replaceable unit does not include a filter head (it might or might not include the element by-pass valve);

Type 2: which are spin-on filters in which the replaceable element is tested together with a filter head (it might or might not include the element by-pass valve);

Type 3: which are filter assembly, usually of the replacement element type, that is the housing (head and bowl) and element.


SDO ISO: International Organization for Standardization
Document Number ISO 3968
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 131/SC 6
Publish Date Document Id Type View
Not Available ISO 3968:2017 Revision