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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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


Related Product Guide:
What Is an Air Release Valve?
What’s A 4/2 Compressed Air Valve?

Our well-equipped facilities and exceptional good quality manage throughout all stages of production enables us to guarantee total shopper satisfaction for 18 Years Factory 6 Inch Ball Valve - piston ring – DONGYI, The product will supply to all over the world, such as: Guyana , United Kingdom , Pretoria , To meet the requirements of specific customers for each bit more perfect service and stable quality merchandise. We warmly welcome customers around the world to visit us, with our multi-faceted cooperation, and jointly develop new markets, create a brilliant future!
  • The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By Alexia from Barcelona - 2018.06.18 19:26
    Speaking of this cooperation with the Chinese manufacturer, I just want to say"well dodne", we are very satisfied.
    5 Stars By Jenny from Jordan - 2018.09.12 17:18
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