Wholesale OEM/ODM Brass Female Medical Gas 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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We continuously execute our spirit of ''Innovation bringing development, Highly-quality ensuring subsistence, Management advertising and marketing gain, Credit history attracting buyers for Brass Female Medical Gas Ball Valve , Forging Components , Plastic Core , To reward from our strong OEM/ODM capabilities and considerate solutions, remember to speak to us today. We'll sincerely develop and share success with all clientele.
Wholesale OEM/ODM Brass Female Medical Gas 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.


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Wholesale OEM/ODM Brass Female Medical Gas Ball Valve -
 piston ring – DONGYI detail pictures

Wholesale OEM/ODM Brass Female Medical Gas Ball Valve -
 piston ring – DONGYI detail pictures


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  • The accounts manager made a detailed introduction about the product, so that we have a comprehensive understanding of the product, and ultimately we decided to cooperate.
    5 Stars By Amber from Southampton - 2018.07.12 12:19
    Product quality is good, quality assurance system is complete, every link can inquire and solve the problem timely!
    5 Stars By Alice from Costa Rica - 2017.04.18 16:45
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