OEM/ODM Manufacturer Valve Crosshead 123558 - 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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To create far more benefit for customers is our company philosophy; customer growing is our working chase for Rotary Airlock Valve , Air Round Valves , R134a Can Tap Valve , We are keeping durable business relationships with more than 200 wholesalers in the USA, the UK, Germany and Canada. If you are interested in any of our products, please feel free to contact us.
OEM/ODM Manufacturer Valve Crosshead 123558 - 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:

OEM/ODM Manufacturer Valve Crosshead 123558 -
 piston ring – DONGYI detail pictures

OEM/ODM Manufacturer Valve Crosshead 123558 -
 piston ring – DONGYI detail pictures


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We support our purchasers with ideal high-quality merchandise and significant level company. Becoming the specialist manufacturer in this sector, we now have received loaded practical encounter in producing and managing for OEM/ODM Manufacturer Valve Crosshead 123558 - piston ring – DONGYI, The product will supply to all over the world, such as: Swansea , Sheffield , belarus , With the goal of "zero defect". To care for the environment, and social returns, care employee social responsibility as own duty. We welcome friends from all over the world to visit and guide us so that we can achieve the win-win goal together.
  • We feel easy to cooperate with this company, the supplier is very responsible, thanks.There will be more in-depth cooperation.
    5 Stars By Polly from Thailand - 2017.05.31 13:26
    The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
    5 Stars By Atalanta from Johannesburg - 2017.09.30 16:36
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