Hot Selling for China Product 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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"Sincerity, Innovation, Rigorousness, and Efficiency" would be the persistent conception of our corporation to the long-term to establish collectively with customers for mutual reciprocity and mutual benefit for Flow Control Valve , 1/4 Plastic Valves , Stainless Steel Rotary Airlock Feeder , We are keeping durable small business relationships with additional than 200 wholesalers in the USA, the UK, Germany and Canada. For anyone who is intrigued in any of our products, make sure you experience free to speak to us.
Hot Selling for China Product 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:

Hot Selling for China Product Ball Valve -
 piston ring – DONGYI detail pictures

Hot Selling for China Product Ball Valve -
 piston ring – DONGYI detail pictures


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Our corporation puts emphasis about the administration, the introduction of talented staff, plus the construction of team building, attempting hard to improve the quality and liability consciousness of team members. Our organization successfully attained IS9001 Certification and European CE Certification of Hot Selling for China Product Ball Valve - piston ring – DONGYI, The product will supply to all over the world, such as: Qatar , Haiti , Swansea , Due to good quality and reasonable prices, our products have been exported to more than 10 countries and regions. We are looking forward to cooperating with all customers from at home and abroad. Moreover, customer satisfaction is our eternal pursuit.
  • The sales person is professional and responsible, warm and polite, we had a pleasant conversation and no language barriers on communication.
    5 Stars By Frances from Luxembourg - 2018.09.23 18:44
    Managers are visionary, they have the idea of "mutual benefits, continuous improvement and innovation", we have a pleasant conversation and Cooperation.
    5 Stars By Pamela from Pakistan - 2018.10.01 14:14
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