Super Purchasing for Needle 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:

Related Product Guide:
What’s a 2/2 Compressed Air Valve?
Duct Cleaner Air Valve Options
As for aggressive price ranges, we believe that you will be searching far and wide for anything that can beat us. We can easily state with absolute certainty that for such high-quality at such price ranges we're the lowest around for Super Purchasing for Needle Valves - rider ring – DONGYI, The product will supply to all over the world, such as: Poland , South Africa , Nicaragua , We will continue to devote ourselves to market & product development and build a well-knit service to our customer to create a more prosperous future. Please contact us today to find out how we can work together.

This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.
