Chinese Professional Instrument Manifold 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 normally follow the basic principle "Quality Initial, Prestige Supreme". We've been fully committed to offering our consumers with competitively priced good quality merchandise, prompt delivery and professional support for 2"" Solenoid Valve 220v Ac , Small Brass Piston Ring , Marine Air Reducing Valves , If you pursuit the Hi-quality, Hi-stable, Competitive price parts, company name is your best choice!
Chinese Professional Instrument Manifold 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:

Chinese Professional Instrument Manifold Valve -
 piston ring – DONGYI detail pictures

Chinese Professional Instrument Manifold Valve -
 piston ring – DONGYI detail pictures


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  • High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
    5 Stars By Maureen from New York - 2017.01.28 19:59
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    5 Stars By Dale from luzern - 2017.01.28 18:53
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