EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN ISO 6626-2 testing. EN ISO 6626-2 specifies the basic dimensional characteristics of coil spring oil control rings made of cast iron in types DSF-C, SSF, GSF, DSF, SSF-L, DSF-NG and DSF-CNP. Applicable to piston rings from 60 mm to 110 mm (inclusive) for reciprocating internal combustion engines for road vehicles and other applications.
The common properties and size tables presented in this section of EN ISO 6626 create a wide range of variables, and when choosing a particular ring type, the designer should keep in mind the conditions under which it will be required to operate. It is also important for the designer to consult the specifications and requirements of EN ISO 6621-3 and EN ISO 6621-4 before finalizing a selection.
The recommended material for the cast iron part is class 10 and will conform to EN ISO 6621-3. Material grades 20 to 50 can be used for special applications. Differences from these in surface design and spring groove are available in plain or chromed versions as recommended by individual manufacturers.
The tangential force of the coil spring loaded oil control rings is mainly determined by the force of the spring. The cast iron part itself has a very small tangential force due to the low radial wall thickness and the reduced "total free clearance/nominal diameter" ratio.
Tangential force measurement is only available due to the flexible design of the cast iron part of the coil spring loaded oil control rings.
EUROLAB assists manufacturers with EN ISO 6626-2 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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