100% Original Air Lock 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" will be the persistent conception of our company to the long-term to establish together with customers for mutual reciprocity and mutual gain for Sanitary Clamp Air Release Valve , Valve Spring Compressor , Air Condition Valve , We are hunting ahead to building positive and beneficial links with the businesses round the globe. We warmly welcome you to definitely call us to begin discussions on how we can easily bring this into being.
100% Original Air Lock 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:

100% Original Air Lock Valve -
 piston ring – DONGYI detail pictures

100% Original Air Lock Valve -
 piston ring – DONGYI detail pictures


Related Product Guide:
What’s a 2/2 Compressed Air Valve?
What’s A 4/2 Compressed Air Valve?

We always stick to the principle "Quality First, Prestige Supreme". We are fully committed to providing our clients with competitively priced quality products, prompt delivery and professional service for 100% Original Air Lock Valve - piston ring – DONGYI, The product will supply to all over the world, such as: Washington , Mongolia , Poland , The credibility is the priority, and the service is the vitality. We promise we have the ability to provide excellent quality and reasonable price products for customers. With us, your safety is guaranteed.
  • Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
    5 Stars By Anna from Bangladesh - 2017.10.23 10:29
    The goods are very perfect and the company sales manager is warmful, we will come to this company to purchase next time.
    5 Stars By Michelle from Belize - 2018.06.19 10:42
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