EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN ISO 6627 testing. This standard specifies the key dimensional characteristics of expander/rail oil control rings without providing a full product description (since expander rail designs vary from piston ring manufacturer to piston ring manufacturer, the interaction between manufacturer and customer will be decisive for specific design details).
This standard applies to expander/rail oil control rings with nominal diameters ranging from 40 mm to 140 mm for reciprocating internal combustion engines for road vehicles and other applications. It is also applied to piston rings of compressors operating under similar conditions.
This standard is one of a series of International Standards dealing with piston rings for reciprocating internal combustion engines. Others are EN ISO 6621 series, EN ISO 6622 series, EN ISO 6623, EN ISO 6624 series, EN ISO 6625 and EN ISO 6626 series.
The common specifications and dimension tables in this standard represent a wide variety of variants. When choosing a ring type, the designer must first of all consider certain operating conditions. It is also important that the designer consults the EN ISO 6621-3 and EN ISO 6621-4 specifications and requirements before completing the selection.
To optimize the fit of the oil ring assembly in the engine cylinder bore, the following should be considered in the design of the expander/rail oil control rings:
EUROLAB assists manufacturers with EN ISO 6627 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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