100% Original Factory Oil Scraper Ring - piston ring – DONGYI

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Tribologically advantageous materials Gas-tight construction for low-molecular-weight gases piston rings seal the gas in the compression chamber of reciprocating compressors. They are customized, in terms of design and material, to the respective application conditions in refineries, the natural gas industry, as well as the petrochemical and chemical industries. The precisely manufactured rings also allow reliable operation with a long service life in industrial air production and many areas...


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Our focus on should be to consolidate and enhance the quality and repair of present products, in the meantime constantly establish new products to meet unique customers' requires for Forklift Solenoid Valve , Trunnion Ball Valve , China Control Valve Assy Suppliers , We have professional products knowledge and rich experience on manufacturing. We always believe your success is our business!
100% Original Factory Oil Scraper Ring - piston ring – DONGYI Detail:

Tribologically advantageous materials
Gas-tight construction for low-molecular-weight gases

piston rings seal the gas in the compression chamber of reciprocating compressors. They are customized, in terms of design and material, to the respective application conditions in refineries, the natural gas industry, as well as the petrochemical and chemical industries. The precisely manufactured rings also allow reliable operation with a long service life in industrial air production and many areas of process engineering.

Piston rings, rider rings and bands are manufactured in various designs:

One-piece or segmental straight
Angle cut
Step cut
Twin Ring™
Double Twin Ring™
Two Segment
Pressure balanced
designs rings and has developed specific combinations for particularly problematic and demanding applications. This has also included numerous successful conversions from lubricated to non-lubricated operation.Pressure balanced rings are available, when deemed appropriate for high pressure applications and piston/rider ring combinations are also available for more specific applications.

Large diameter piston rings up to 47” (1200mm) are custom manufactured for special requirements. A range of metallic piston and rider rings are also manufactured, using selected grades of bronze or cast iron, where operational requirements dictate.


Product detail pictures:

100% Original Factory Oil Scraper Ring -
 piston ring – DONGYI detail pictures

100% Original Factory Oil Scraper Ring -
 piston ring – DONGYI detail pictures


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It adheres on the tenet "Honest, industrious, enterprising, innovative" to acquire new solutions continuously. It regards prospects, success as its personal success. Let us build prosperous future hand in hand for 100% Original Factory Oil Scraper Ring - piston ring – DONGYI, The product will supply to all over the world, such as: Liverpool , Manchester , Portugal , Now the competition in this field is very fierce; but we will still offer best quality, reasonable price and most considerate service in an endeavor to achieve win-win goal. "Change for the better!" is our slogan, which means "A better world is before us, so let's enjoy it!" Change for the better! Are you ready?
  • We feel easy to cooperate with this company, the supplier is very responsible, thanks.There will be more in-depth cooperation.
    5 Stars By mary rash from Norwegian - 2018.09.23 18:44
    This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.
    5 Stars By Susan from Oman - 2018.12.05 13:53
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