OEM Factory for Air Operated Ball Valves - rider ring – DONGYI

Short Description:

Selection from a comprehensive range of tribological materials No pressure applied to the rider ring by relief grooves Conversion of cylinder from lubricated to non-lubricated operation In reciprocating compressors, rider rings guide the piston in the cylinder bore. We manufacture them from materials that are specifically developed for the respective application.


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We depend on sturdy technical force and continually create sophisticated technologies to meet the demand of Industrial Engineering , Air Throttle Valve , Small Mini Valve , "Making the Products of High Quality" is the eternal goal of our company. We make unremitting efforts to realize the goal of "We Will Always Keep in Pace with the Time".
OEM Factory for Air Operated Ball Valves - rider ring – DONGYI Detail:

Selection from a comprehensive range of tribological materials
No pressure applied to the rider ring by relief grooves
Conversion of cylinder from lubricated to non-lubricated operation
In reciprocating compressors, rider rings guide the piston in the cylinder bore.
We manufacture them from materials that are specifically developed for the respective application.


Product detail pictures:

OEM Factory for Air Operated Ball Valves -
 rider ring – DONGYI detail pictures


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To become the stage of realizing dreams of our employees! To build a happier, much more united and far more professional team! To reach a mutual profit of our clients, suppliers, the society and ourselves for OEM Factory for Air Operated Ball Valves - rider ring – DONGYI, The product will supply to all over the world, such as: Lisbon , Czech republic , Gabon , We have a dedicated and aggressive sales team, and many branches, catering to our main customers. We are looking for long-term business partnerships, and ensure our suppliers that they will definitely benefit in both short and long run.
  • High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
    5 Stars By Marcia from Norway - 2018.09.08 17:09
    Customer service staff and sales man are very patience and they all good at English, product's arrival is also very timely, a good supplier.
    5 Stars By Martin Tesch from Honduras - 2018.05.15 10:52
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