PPR Plastic piston rings

Product properties

Wear resistance piston ring specially developed for the pneaumatic pump industrial application. It is easier to be installed comparing with the PTFE piston ring. Standard materials CSB-EPB®.
● Good wear resistance;
● Easy assembly;
● Maintenance free and self-lubricated;
● Corrosion resistance and light weight.

PPR Plastic piston rings

Structure design

CSB-PPR plastic piston ring is designed with slipped gap that ensures easy assembly of the bearings and long term stable operation.

Material design

CSB-PPR plastic piston ring is made from CSB-EPB® materials which is a good wear resistance polymer ensures outstanding wear resistance feature of the bearings under high speed operation condition. 

TypeMaterialApplication temperatureFeatures
PPR3CSB-EPB3-40℃/+130℃Strong and durable, low-cost
PPR7CSB-EPB7-40℃/+90℃High wear resistance
PPR13CSB-EPB13-50℃/+90℃Standard material, anti-wear
PPR19CSB-EPB19-40℃/+150℃High-temperature and anti-wear
PPR21CSB-EPB21-40℃/+200℃High-temperature and chemical resistance
PPR23CSB-EPB23-100℃/+180℃FDA grade and extreme teperature applications
PPR25CSB-EPB25-100℃/+180℃Low and high temperature

Assembly design

CSB-PPR slipped gap design allows an easy assembly, simply open the bearing by hand from the gap and position the bearings to the required location until it is pushed into the mounting groove. 



CSB-PPR® Plastic piston rings

Type PDF
Size 149KB
Time 12-2023
No. CSB/CAT.062


MediumPPR bearings resistance
Greases. oilsResistant
Diluted acidsConditionally resistant
Strong acidsNot resistant
Diluted alkalisResistant
Strong alkalisConditionally resistant
CSB® Bearing Material Chemical Resistance

Please select bearing material and medium...

CSB® bearing material chemical resistance data is a comparison test result of the CSB chemistry laboratory using laboratory specimens or similar chemicals at room temperature 23 ℃, without considering the impact of other temperatures and chemical medium mixtures on the chemical resistance of CSB® bearing materials ; Therefore, this data can only act as a reference. CSB® recommends that the chemical resistance of actual parts should be tested under application conditions and verify the suitability of the bearings.


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