Factory directly Stainless Steel 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 business puts emphasis on the administration, the introduction of talented personnel, as well as the construction of team building, trying hard to further improve the standard and liability consciousness of staff members customers. Our enterprise successfully attained IS9001 Certification and European CE Certification of Water Pipe Gate Valve , Titanium Connecting Rod , R134a Can Tap Valve , How about to start your good business with our company? We are ready, trained and fulfilled with pride. Let’s start our new business with new wave.
Factory directly Stainless Steel 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:

Factory directly Stainless Steel Ball Valve -
 piston ring – DONGYI detail pictures

Factory directly Stainless Steel Ball Valve -
 piston ring – DONGYI detail pictures


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To create much more price for clients is our company philosophy; purchaser growing is our working chase for Factory directly Stainless Steel Ball Valve - piston ring – DONGYI, The product will supply to all over the world, such as: Guatemala , Hungary , Nigeria , To win customers' confidence, Best Source has set up a strong sales and after-sales team to deliver the best product and service. Best Source abides by the idea of "Grow with customer" and philosophy of "Customer-oriented" to achieve cooperation of mutual trust and benefit. Best Source will always stand ready to cooperate with you. Let's grow together!
  • The quality of the products is very good, especially in the details, can be seen that the company work actively to satisfy customer's interest, a nice supplier.
    5 Stars By Lauren from Puerto Rico - 2017.12.09 14:01
    It is not easy to find such a professional and responsible provider in today's time. Hope that we can maintain long-term cooperation.
    5 Stars By Amy from Rio de Janeiro - 2018.03.03 13:09
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