18 Years Factory 6 Inch Ball Valve - 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 target is to consolidate and improve the quality and service of existing products, meanwhile constantly develop new products to meet different customers' demands for Pc350 Piston Ring , Industrial Spring , Inflatables Boat Air Valves , We've been honest and open up. We glance ahead on your pay a visit to and developing trustworthy and long-term standing relationship.
18 Years Factory 6 Inch Ball Valve - 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:

18 Years Factory 6 Inch Ball Valve -
 piston ring – DONGYI detail pictures

18 Years Factory 6 Inch Ball Valve -
 piston ring – DONGYI detail pictures


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Our personnel are generally in the spirit of "continuous improvement and excellence", and together with the outstanding top quality merchandise, favorable price tag and fantastic after-sales solutions, we try to gain every single customer's rely on for 18 Years Factory 6 Inch Ball Valve - piston ring – DONGYI, The product will supply to all over the world, such as: Vietnam , San Francisco , Bogota , Thus far, our item associated with printer dtg a4 may be shown in most foreign nations as well as urban centers, which are sought after simply by targeted traffic. We all highly imagine that now we have now the full capacity to present you with contented merchandise. Desire to collect requests of your stuff and produce the long-term co-operation partnership. We very seriously promise:Csame top quality, better price; exact same selling price, higher quality.
  • Speaking of this cooperation with the Chinese manufacturer, I just want to say"well dodne", we are very satisfied.
    5 Stars By Jean from Nigeria - 2017.07.28 15:46
    This is a reputable company, they have a high level of business management, good quality product and service, every cooperation is assured and delighted!
    5 Stars By Ray from Sweden - 2018.06.18 19:26
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