China Gold Supplier for Air Valves For Daf Trucks - 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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Often customer-oriented, and it's our ultimate target to become not only probably the most reputable, trustable and honest provider, but also the partner for our customers for Bellows Seal Globe Valve , Excavator Main Control Valve , Api Pressure Relief Valve , We have four leading products. Our products are best sold not only in the Chinese market, but also welcomed in the international market.
China Gold Supplier for Air Valves For Daf Trucks - 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:

China Gold Supplier for Air Valves For Daf Trucks -
 piston ring – DONGYI detail pictures

China Gold Supplier for Air Valves For Daf Trucks -
 piston ring – DONGYI detail pictures


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By using a full scientific excellent administration method, great quality and fantastic religion, we get good reputation and occupied this discipline for China Gold Supplier for Air Valves For Daf Trucks - piston ring – DONGYI, The product will supply to all over the world, such as: Nicaragua , Marseille , Ethiopia , We hope we can establish long-term cooperation with all of the customers. And hope we can improve competitiveness and achieve the win-win situation together with the customers. We sincerely welcome the customers from all over the world to contact us for anything you need!
  • Customer service staff and sales man are very patience and they all good at English, product's arrival is also very timely, a good supplier.
    5 Stars By Klemen Hrovat from San Diego - 2018.11.28 16:25
    Production management mechanism is completed, quality is guaranteed, high credibility and service let the cooperation is easy, perfect!
    5 Stars By Quintina from Saudi Arabia - 2018.06.03 10:17
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