Factory Directly supply Control Valve - rider ring – DONGYI Detail:
Selection from a comprehensive range of tribological materials
No pressure applied to the rider ring by relief grooves
Conversion of cylinder from lubricated to non-lubricated operation
In reciprocating compressors, rider rings guide the piston in the cylinder bore.
We manufacture them from materials that are specifically developed for the respective application.
Product detail pictures:

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High-quality comes 1st; assistance is foremost; business enterprise is cooperation" is our business enterprise philosophy which is constantly observed and pursued by our business for Factory Directly supply Control Valve - rider ring – DONGYI, The product will supply to all over the world, such as: Greece , Romania , Ghana , We have gained a lot of recognition among customers spread all across the world. They trust us and always give repetitive orders. Furthermore, mentioned below are some of the major factors that have played significant role in our tremendous growth in this domain.

Product quality is good, quality assurance system is complete, every link can inquire and solve the problem timely!
